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s
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Secu
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C
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p
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A
uth
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r
:
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w
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d
Dau
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az
ak
Fac
u
lt
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I
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f
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Un
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v
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s
iti T
ek
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g
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ala
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s
ia
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Ku
ala
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m
p
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r
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Ma
la
y
s
ia.
E
m
ail: sa
l
w
an
i.k
l
@
u
t
m
.
m
y
1.
I
NT
RO
D
UCT
I
O
N
L
a
n
d
r
eg
is
tr
y
s
y
s
te
m
r
ef
er
s
to
th
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y
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te
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th
at
r
ec
o
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d
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th
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d
et
ails
o
f
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w
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s
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ip
en
t
itle
m
en
t
b
y
s
e
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m
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t
b
o
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ies.
T
h
e
s
to
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ed
r
ec
o
r
d
ca
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e
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s
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as
th
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titl
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m
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t
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p
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latio
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d
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t
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an
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lan
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titl
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[
1
]
.
L
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ti
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m
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t
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s
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s
s
e
n
tial
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s
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d
ec
o
n
o
m
ic
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esil
ie
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ce
o
f
cit
izen
[
2
]
.
T
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ec
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r
e
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d
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p
-
to
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ate
lan
d
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d
o
th
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a
s
p
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a
n
ce
[
1
]
.
T
h
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w
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ld
b
an
k
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s
a
ctiv
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y
w
o
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k
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m
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atio
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p
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[
3
,
4
]
.
Var
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tak
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[
5
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.
T
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tio
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Evaluation Warning : The document was created with Spire.PDF for Python.
T
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(
Mo
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2561
litt
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co
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id
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2.
L
AND
R
E
G
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T
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S
YS
T
E
M
T
h
e
Fu
n
d
a
m
en
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eg
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y
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ca
n
b
e
m
ai
n
l
y
i
n
to
f
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r
s
ec
tio
n
s
:
a.
Un
iq
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id
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ti
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icat
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:
T
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m
a
in
ai
m
o
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s
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s
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id
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f
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[
6
]
.
b.
I
n
i
tial
tr
a
n
s
itio
n
p
r
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ce
s
s
:
B
lo
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m
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a
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m
t
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ca
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-
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elate
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it c
an
b
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lan
d
o
w
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h
ip
r
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s
[
6
]
.
B
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ap
p
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to
b
e
r
eg
is
ter
ed
in
th
e
b
lo
ck
c
h
ain
t
h
at
is
r
ef
er
r
ed
as
th
e
g
en
e
s
is
b
lo
ck
.
A
ll
th
e
p
a
r
ties
in
v
o
lv
e
d
in
th
e
s
y
s
te
m
m
u
s
t a
g
r
ee
to
it b
ef
o
r
e
p
r
o
ce
e
d
in
g
f
u
r
t
h
er
o
n
[
6
]
.
c.
C
o
n
s
e
n
t
P
r
in
cip
le:
T
h
e
p
er
m
is
s
io
n
o
f
th
e
r
ea
l
o
w
n
er
as
p
er
th
e
lan
d
r
ec
o
r
d
is
n
ec
es
s
ar
y
to
tr
an
s
f
er
th
e
lan
d
to
th
e
b
u
y
er
.
T
h
e
m
ai
n
is
s
u
e
s
id
en
ti
f
ied
d
u
r
i
n
g
t
h
is
p
r
o
ce
s
s
ar
e:
I
d
en
tif
icat
io
n
o
f
t
h
e
g
e
n
u
in
e
o
w
n
er
.
Av
ailab
ilit
y
o
f
d
i
g
ital s
ig
n
at
u
r
es to
all
th
e
u
s
er
s
/ o
w
n
er
s
.
T
h
e
m
ec
h
a
n
is
m
o
r
th
e
m
id
d
le
m
an
to
v
er
if
y
t
h
e
co
er
cio
n
/tra
n
s
f
er
u
n
d
er
th
r
ea
t
w
it
h
o
u
t
f
r
ee
w
ill.
I
n
th
e
b
l
o
ck
ch
ai
n
,
th
e
i
d
e
a
is
t
o
r
em
o
v
e
an
y
m
i
d
d
l
e
m
an
b
u
t
in
t
h
is
c
as
e
c
o
e
r
ci
o
n
c
an
n
o
t
b
e
ch
e
ck
e
d
[
6
]
.
d.
P
u
b
licit
y
o
f
r
ec
o
r
d
s
/o
w
n
er
s
h
i
p
d
atab
ases
:
T
h
e
m
ai
n
id
ea
is
to
m
ak
e
r
ec
o
r
d
ea
s
il
y
ac
ce
s
s
ib
le
an
d
tr
u
s
ted
th
at
co
u
ld
b
e
eith
er
p
u
b
licall
y
av
ailab
le
f
o
r
in
s
p
ec
tio
n
o
r
an
y
tr
u
s
te
d
th
ir
d
p
ar
ty
t
h
at
ca
n
ca
t
er
th
e
n
ee
d
s
o
f
a
p
r
o
b
a
b
le
p
u
r
ch
aser
[
6
]
.
T
h
e
p
r
esen
t
p
ap
er
-
b
ased
tr
ad
i
tio
n
al
lan
d
r
eg
i
s
tr
y
s
y
s
te
m
h
a
s
b
ee
n
p
r
esen
ted
in
Fi
g
u
r
e
1
th
at
ca
n
b
e
d
ef
in
ed
i
n
th
e
f
o
llo
w
in
g
s
tep
s
:
a.
Step
-
1
:
Ver
if
iactio
n
o
f
p
r
o
p
er
ty
I
n
t
h
e
c
u
r
r
en
t
lan
d
r
eg
i
s
tr
y
s
y
s
te
m
,
all
th
e
d
o
cu
m
en
tat
io
n
i
s
d
o
n
e
p
h
y
s
icall
y
w
it
h
p
ap
er
an
d
v
er
i
f
ied
b
y
ch
ec
k
i
n
g
p
h
y
s
ica
l
r
eg
i
s
ter
s
.
T
h
e
la
n
d
b
u
y
er
w
i
ll
as
k
f
o
r
th
e
co
p
y
o
f
th
e
lan
d
ti
tle
f
r
o
m
t
h
e
s
eller
to
g
et
it
v
er
if
ied
b
y
t
h
e
r
eg
i
s
tr
y
o
f
f
ice
[
7
,
8
]
.
b.
Step
-
2
:
P
r
e
-
ag
r
ee
m
et
B
/W
s
ell
er
an
d
b
u
y
er
W
h
en
th
e
b
u
y
er
g
ets
t
h
e
s
ati
s
f
ac
to
r
y
r
es
u
lt
s
(
au
th
e
n
ticat
io
n
)
f
r
o
m
th
e
r
eg
i
s
tr
y
d
ep
ar
t
m
en
t,
th
e
n
h
e/s
h
e
f
u
r
t
h
er
ca
n
ap
p
r
o
ac
h
th
e
s
e
ller
f
o
r
th
e
p
r
e
-
ag
r
ee
m
e
n
t.
c.
Step
-
3
.
0
:
Sales d
ee
d
s
T
h
e
b
u
y
er
w
ill
ap
p
r
o
ac
h
th
e
n
o
tar
y
d
ep
ar
t
m
e
n
t
to
p
r
ep
ar
e
th
e
o
f
f
icial
d
o
cu
m
e
n
ts
f
o
r
th
e
tr
an
s
f
er
o
f
la
n
d
.
No
tar
y
d
ep
ar
t
m
e
n
t
w
ill
co
n
s
u
lt
th
e
r
e
v
en
u
e
d
ep
ar
t
m
en
t
f
o
r
th
e
s
ta
m
p
d
u
t
y
o
n
th
e
la
n
d
an
d
in
f
o
r
m
th
e
r
eq
u
ir
ed
s
ta
m
p
d
u
t
y
to
t
h
e
b
u
y
er
.
Step
-
3
.
1
:
Su
r
v
e
y
o
r
A
t
t
h
e
s
a
m
e
ti
m
e,
th
e
b
u
y
e
r
w
ill
ap
p
r
o
ac
h
th
e
s
u
r
v
e
y
o
r
d
ep
ar
tm
en
t
to
v
er
i
f
y
th
e
ac
tu
al
p
h
y
s
ica
l
m
ea
s
u
r
e
m
e
n
t
s
an
d
lo
ca
tio
n
o
f
th
e
la
n
d
as
s
p
ec
i
f
ied
in
th
e
lan
d
r
ec
o
r
d
/p
ap
er
s
.
I
f
th
e
b
u
y
er
g
et
s
th
e
s
atis
f
ac
to
r
y
r
esu
lt
f
r
o
m
th
e
s
u
r
v
e
y
o
r
,
t
h
e
n
h
e
ca
n
p
r
o
ce
ed
to
th
e
r
e
g
is
tr
at
io
n
o
f
f
ice
w
it
h
th
e
o
f
f
icial
d
o
cu
m
en
ts
g
i
v
en
b
y
th
e
n
o
tar
y
d
ep
ar
t
m
en
t
an
d
p
a
y
t
h
e
r
eq
u
is
ite
r
eg
i
s
tr
atio
n
f
ee
i
n
t
h
e
f
o
r
m
o
f
s
ta
m
p
d
u
t
y
an
d
o
th
er
ch
ar
g
e
s
ap
p
licab
le
b
ased
o
n
th
e
n
o
tar
y
d
o
cu
m
e
n
t
s
.
d.
Step
-
4
:
R
e
g
is
tr
atio
n
d
ep
ar
t
m
e
n
t
Af
ter
r
ec
eiv
in
g
t
h
e
o
f
f
icial
d
o
cu
m
e
n
ts
f
r
o
m
th
e
b
u
y
er
s
e
n
d
it
to
th
e
r
ec
o
r
d
in
g
o
f
f
ice.
R
ec
o
r
d
in
g
o
f
f
ice
T
ak
e
B
u
y
er
,
s
eller
id
en
ti
t
y
a
n
d
v
er
if
y
it.
Af
ter
v
er
i
f
icatio
n
R
ec
o
r
d
in
g
O
f
f
ice
tak
e
t
h
e
P
h
o
to
,
B
io
m
etr
ics
o
f
all
p
ar
ties
(
s
eller
,
b
u
y
er
,
an
d
w
it
n
es
s
es),
id
an
d
p
h
o
to
,
an
d
p
a
y
m
e
n
t
f
ee
s
p
r
o
o
f
to
b
e
in
clu
d
ed
i
n
th
e
o
f
f
icial
lan
d
r
ec
o
r
d
p
a
p
er
.
R
ec
o
r
d
in
g
o
f
f
ice
t
h
e
n
s
u
b
m
its
t
h
e
f
i
n
al
o
f
f
icial
d
o
cu
m
en
ts
to
th
e
r
eg
i
s
tr
atio
n
d
ep
ar
t
m
e
n
t.
e.
Step
-
5
:
L
a
n
d
m
u
tat
io
n
R
eg
i
s
tr
atio
n
d
ep
ar
t
m
e
n
t
th
e
n
s
en
d
s
th
is
o
f
f
icial
p
ap
er
to
t
h
e
lan
d
m
u
tatio
n
d
ep
ar
t
m
en
t
an
d
to
tr
an
s
f
er
th
e
lan
d
o
w
n
er
s
h
ip
.
f.
Step
-
6
:
R
e
g
is
tr
y
d
ep
ar
t
m
e
n
t
L
a
n
d
m
u
tatio
n
d
ep
ar
t
m
en
t
t
h
en
s
u
b
m
its
a
n
d
u
p
d
ate
all
th
e
lan
d
d
o
cu
m
en
t
s
to
t
h
e
r
ev
e
n
u
e
an
d
r
e
g
is
tr
y
d
ep
ar
tm
e
n
t f
o
r
t
h
e
f
i
n
al
u
p
d
atin
g
o
f
th
e
r
ec
o
r
d
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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Fig
u
r
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1
.
T
r
ad
itio
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e
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an
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d
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a
r
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c
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e
a
r
[
9
]
.
T
h
e
r
e
g
is
t
r
y
o
f
f
ic
e
o
n
ly
m
ak
es
a
r
e
c
o
r
d
o
f
l
a
n
d
t
r
a
n
s
a
c
ti
o
n
s
,
an
d
i
t
w
o
r
k
s
b
a
s
e
d
o
n
t
h
e
p
ay
m
en
t
p
r
o
o
f
s
u
b
m
it
t
e
d
b
y
th
e
s
el
l
e
r
a
n
d
b
u
y
e
r
b
u
t
c
a
n
n
o
t
v
e
r
if
y
i
ts
v
a
li
d
i
ty
in
d
e
p
en
d
en
tly
an
d
a
c
tu
a
l
p
ay
m
en
t
m
a
d
e
[
1
0
]
.
T
h
e
co
r
r
u
p
t
i
o
n
in
th
e
cu
r
r
e
n
t
s
y
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em
le
d
t
o
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e
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i
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e
o
f
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d
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ly
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is
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a
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o
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p
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r
f
a
r
m
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c
an
n
o
t
r
eg
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l
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d
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u
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d
e
r
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r
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f
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p
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m
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s
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th
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s
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o
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o
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m
a
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d
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o
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m
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,
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d
i
n
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a
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a
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l
e
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o
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p
ay
th
e
l
o
an
am
o
u
n
t
[
1
1
]
.
T
h
e
l
a
n
d
r
e
g
is
t
r
y
s
y
s
t
em
d
e
p
en
d
s
u
p
o
n
t
h
e
g
o
v
e
r
n
m
en
t
d
e
p
a
r
tm
e
n
t
s
f
o
r
p
r
o
c
e
s
s
in
g
an
d
th
e
v
e
r
if
ic
a
ti
o
n
.
A
s
a
ll
th
e
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an
d
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g
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t
e
r
d
at
a
b
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[1
2]
.
T
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y
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d
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q
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ay
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d
w
a
s
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f
tim
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n
d
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o
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ey
[
1
3
-
1
5
]
.
A
v
a
i
la
b
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l
ity
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d
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ay
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b
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o
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z
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d
[
3
]
.
L
an
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l
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v
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y
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[
1
6
,
1
7
]
.
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[
1
8
]
.
O
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th
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w
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m
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s
[
1
9
]
.
D
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th
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[
2
0
]
.
T
h
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f
in
an
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ex
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q
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[
2
1
]
.
A
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ls
[
2
2
]
.
Evaluation Warning : The document was created with Spire.PDF for Python.
T
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2563
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[
2
3
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.
Ho
w
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a
n
s
ac
tio
n
s
[
2
4
,
2
5
]
.
A
p
p
licatio
n
o
f
b
lo
ck
ch
a
in
te
ch
n
o
lo
g
y
i
n
th
e
la
n
d
r
eg
i
s
tr
y
s
o
lv
e
m
a
n
y
p
r
o
b
lem
s
th
a
t
ar
is
e
d
u
e
to
k
ee
p
in
g
a
ce
n
tr
al
ized
r
ec
o
r
d
o
f
titl
e
s
.
A
b
lo
ck
ch
a
in
b
ased
la
n
d
r
eg
is
tr
y
s
y
s
te
m
w
i
ll
p
r
o
v
id
e
m
an
y
ab
ilit
ie
s
a
s
co
m
p
ar
ed
to
th
e
o
ld
r
eg
i
s
tr
y
s
y
s
te
m
.
I
n
b
lo
c
k
ch
ai
n
,
t
h
er
e
is
a
d
ec
en
tr
alize
d
co
n
tr
o
l a
n
d
s
to
r
ag
e
o
f
r
ec
o
r
d
s
th
at
h
av
e
t
h
e
p
o
ten
tial
to
i
n
cr
ea
s
e
th
e
tr
u
s
t
an
d
g
i
v
e
r
is
e
to
th
e
co
llab
o
r
ativ
e
s
y
s
te
m
.
B
y
u
s
i
n
g
b
lo
ck
c
h
ai
n
,
th
e
ef
f
icie
n
c
y
o
f
t
h
e
la
n
d
r
eg
is
tr
y
s
y
s
te
m
w
il
l b
e
in
cr
ea
s
ed
an
d
r
esu
lt i
n
b
etter
s
y
n
c
h
r
o
n
iza
tio
n
an
d
co
u
n
ter
in
g
th
e
s
ec
u
r
it
y
is
s
u
e
s
r
es
u
lt
in
g
f
r
o
m
h
u
m
an
-
m
ad
e
d
is
a
s
ter
s
an
d
av
a
ilab
ilit
y
i
s
s
u
es
o
f
i
n
f
o
r
m
at
io
n
[
2
5
,
2
6
]
.
B
lo
ck
ch
ai
n
tech
n
o
lo
g
y
co
n
s
i
s
t
o
f
p
ee
r
to
p
ee
r
n
et
w
o
r
k
co
n
n
ec
ted
b
y
d
is
tr
ib
u
ted
n
et
w
o
r
k
in
w
h
ic
h
ea
ch
p
ee
r
is
h
o
ld
i
n
g
th
e
s
a
m
e
co
p
y
o
f
tr
a
n
s
ac
tio
n
m
ad
e
v
ia
co
n
s
en
s
u
s
o
f
all
th
e
p
ee
r
in
t
h
e
n
et
w
o
r
k
[
2
4
,
2
7
]
.
T
h
e
b
lo
ck
ch
ain
ca
te
g
o
r
ized
b
ased
o
n
P
u
b
lic
o
r
p
r
iv
ate
an
d
th
e
p
er
m
i
s
s
io
n
o
f
p
e
er
in
th
e
n
et
w
o
r
k
.
T
h
e
ta
m
p
er
in
g
w
it
h
t
h
e
au
th
e
n
tic
tr
a
n
s
it
io
n
s
in
la
n
d
r
eg
i
s
tr
y
r
ec
o
r
d
o
r
th
e
ef
f
o
r
ts
to
te
m
p
er
th
e
o
ld
r
ec
o
r
d
s
cr
ea
tes
th
e
au
d
it
tr
ail
o
n
th
e
led
g
er
[
2
8
]
.
T
h
e
b
l
o
ck
ch
ai
n
tech
n
o
lo
g
y
p
er
m
it
s
to
h
av
e
p
ee
r
d
ef
in
ed
ch
ain
s
f
o
r
th
e
e
n
tr
y
o
f
th
e
tr
an
s
ac
tio
n
s
,
P
ee
r
-
b
ased
v
alid
atio
n
o
f
e
n
tr
i
es,
a
co
n
s
en
s
u
s
m
ec
h
an
is
m
f
o
r
s
to
r
in
g
t
h
e
e
n
tr
ies
an
d
a
m
ed
iu
m
to
g
u
ar
an
tee
th
e
s
ec
u
r
it
y
o
f
t
h
e
s
y
s
te
m
[
5
,
2
9
]
.
T
h
e
r
ec
o
r
d
s
o
f
th
e
tr
a
n
s
itio
n
s
ar
e
s
to
r
ed
in
a
d
is
tr
ib
u
ted
led
g
er
w
h
ic
h
p
r
ev
e
n
ts
t
h
e
s
y
s
te
m
f
r
o
m
f
a
u
lt,
in
s
u
latio
n
an
d
ca
r
ef
u
l
s
p
o
n
ta
n
eo
u
s
ch
a
n
g
in
g
th
e
r
ec
o
r
d
.
A
ll
th
e
r
ec
o
r
d
in
b
lo
ck
ch
ain
is
p
r
o
tecte
d
b
y
p
r
o
o
f
o
f
ex
is
te
n
ce
[
3
0
]
.
I
n
w
h
ic
h
ea
c
h
s
tep
o
f
t
h
e
lan
d
r
e
g
is
tr
y
i
s
p
u
b
lis
h
ed
o
n
t
h
e
b
lo
ck
c
h
a
in
w
h
ic
h
p
r
o
v
id
es
th
e
s
ec
u
r
it
y
an
d
r
ec
o
r
d
s
tab
ili
t
y
b
y
s
ta
m
p
i
n
g
t
h
e
e
n
tire
r
ec
o
r
d
w
i
th
n
o
tar
izatio
n
[
3
1
]
.
B
y
p
u
b
lis
h
i
n
g
ea
ch
s
tep
o
n
th
e
b
lo
c
k
ch
ai
n
e
s
tab
lis
h
es
"P
r
o
o
f
o
f
p
r
o
ce
s
s
"
th
at
s
ec
u
r
e
th
e
r
ec
o
r
d
s
an
d
p
r
o
v
id
e
ac
co
u
n
tab
il
it
y
.
T
h
e
o
n
l
y
p
o
s
s
ib
le
ca
s
e
f
o
r
th
e
n
o
n
-
o
w
n
er
to
tr
an
s
f
er
o
w
n
er
s
h
ip
o
f
th
e
lan
d
titl
e
is
to
h
a
v
e
t
h
e
p
r
iv
at
e
k
e
y
o
f
t
h
e
o
w
n
er
an
d
u
p
lo
ad
s
th
e
tr
an
s
ac
tio
n
.
I
n
th
o
s
e
ca
s
e
s
,
th
e
o
w
n
er
h
as
an
o
p
tio
n
to
h
av
e
a
b
ac
k
u
p
s
y
s
te
m
to
u
s
e
h
is
/
h
er
p
r
iv
ate
k
e
y
in
ca
s
e
o
f
a
cr
ash
o
f
d
ev
ice
s
[
3
2
]
.
5.
P
O
T
E
N
T
I
A
L
B
E
N
E
F
I
T
S
T
h
e
d
e
c
e
n
t
r
al
i
z
e
d
s
t
an
d
a
r
d
s
y
s
t
em
f
o
r
l
an
d
r
e
g
i
s
t
r
a
t
i
o
n
r
e
c
o
r
d
s
w
i
l
l
r
e
d
u
c
e
th
e
r
o
l
e
o
f
i
n
t
e
r
m
e
d
i
a
r
i
e
s
,
d
e
c
r
e
a
s
e
t
h
e
t
im
e
a
n
d
c
o
s
t
o
f
t
h
e
p
r
o
c
es
s
an
d
th
e
s
y
s
t
em
w
il
l
s
t
r
en
g
th
en
th
e
p
r
o
c
e
s
s
an
d
w
il
l
b
u
il
d
th
e
t
r
u
s
t
b
e
tw
e
en
th
e
t
r
an
s
a
c
t
in
g
p
a
r
t
ie
s
.
R
ec
o
r
d
i
n
g
r
ig
h
ts
o
f
p
r
o
p
e
r
ty
th
r
o
u
g
h
B
l
o
ck
ch
a
in
w
il
l
h
e
l
p
in
an
n
u
a
l
c
o
s
t
s
av
in
g
s
an
d
p
r
o
v
i
d
e
t
am
p
e
r
-
p
r
o
o
f
l
e
d
g
e
r
b
o
o
k
.
B
l
o
ck
ch
ai
n
u
s
u
a
lly
r
e
d
u
c
es
th
e
e
x
p
en
d
i
t
u
r
e
an
d
t
im
e
o
f
r
e
g
is
t
r
at
i
o
n
p
r
o
c
e
s
s
an
d
w
i
ll
h
e
l
p
J
u
d
i
ci
a
r
y
t
o
s
et
t
l
e
d
o
w
n
m
o
s
t
o
f
th
e
c
iv
il
c
as
es
r
e
la
t
e
d
to
p
r
o
p
e
r
ty
[
3
3
,
3
4
]
.
T
h
e
b
e
n
ef
it
s
o
f
u
s
in
g
B
l
o
ck
ch
ai
n
in
l
an
d
r
e
g
i
s
t
r
y
s
y
s
t
em
s
u
m
m
a
r
iz
e
d
in
th
e
f
o
l
l
o
w
in
g
p
o
i
n
t
s
:
a.
T
r
an
s
p
ar
en
cy
:
E
v
er
y
n
o
d
e
h
as
a
co
m
p
lete
o
v
er
v
ie
w
o
f
tr
an
s
ac
tio
n
s
an
d
h
o
ld
s
a
h
is
to
r
y
o
f
th
e
tr
an
s
ac
tio
n
s
th
a
t c
an
b
e
v
i
s
ib
le
f
r
o
m
an
y
w
h
er
e
at
an
y
ti
m
e
[
3
5
]
.
b.
I
n
cr
ea
s
ed
tr
u
s
t:
T
r
u
s
t
b
u
ild
d
u
e
to
i
m
m
u
tab
le
r
ec
o
r
d
k
ee
p
in
g
a
n
d
v
er
i
f
icatio
n
o
f
d
ata
at
m
u
ltip
le
n
o
d
es
[
1
9
,
3
6
-
39]
.
c.
I
n
cr
ea
s
e
p
r
ed
ictiv
e
ca
p
ab
ilit
y
:
His
to
r
y
i
n
f
o
r
m
atio
n
s
to
r
ed
at
m
u
ltip
le
n
o
d
es
ca
n
b
e
tr
ac
ed
b
ac
k
,
th
at
in
cr
ea
s
es t
h
e
p
r
ed
ictiv
e
ca
p
ab
ilit
y
[
4
0
]
.
d.
R
eliab
ilit
y
:
Data
is
s
to
r
ed
in
m
u
l
tip
le
p
lace
s
in
th
e
b
lo
ck
ch
ain
b
ased
s
y
s
te
m
.
C
o
n
s
e
n
s
u
s
m
ec
h
a
n
i
s
m
s
en
s
u
r
e
th
at
o
n
l
y
i
n
f
o
r
m
atio
n
ch
an
g
es
w
h
e
n
all
r
elev
a
n
t p
ar
ti
es a
g
r
ee
[
7
,
4
0
]
.
e.
I
n
c
r
e
a
s
e
d
c
o
n
t
r
o
l
:
C
o
n
s
e
n
s
u
s
m
e
c
h
a
n
i
s
m
t
o
a
d
d
t
r
a
n
s
a
c
t
i
o
n
i
n
c
r
e
a
s
e
s
t
h
e
c
o
n
t
r
o
l
o
v
e
r
t
h
e
d
a
t
a
b
a
s
e
[
3
7
]
.
f.
C
o
s
t
r
ed
u
ctio
n
:
C
o
s
t
d
ec
r
ea
s
es
as
n
o
h
u
m
a
n
th
ir
d
p
ar
t
y
in
v
o
l
v
ed
in
co
n
d
u
cti
n
g
an
d
v
alid
ati
n
g
th
e
d
ata
[
2
4
,
4
1
]
.
g.
R
ed
u
ce
d
en
er
g
y
co
n
s
u
m
p
t
io
n
:
I
n
cr
ea
s
ed
ef
f
icie
n
c
y
a
n
d
tr
an
s
ac
tio
n
m
ec
h
an
i
s
m
s
t
h
r
o
u
g
h
n
et
w
o
r
k
r
ed
u
ce
s
th
e
en
er
g
y
co
n
s
u
m
p
tio
n
[
4
2
]
.
h.
Secu
r
it
y
:
Data
is
s
to
r
ed
at
m
u
ltip
le
s
y
s
te
m
s
u
s
in
g
e
n
cr
y
p
tio
n
m
e
th
o
d
s
t
h
at
s
to
p
t
h
e
d
ata
f
r
o
m
b
ei
n
g
alter
ed
w
it
h
o
u
t p
r
o
p
er
au
th
e
n
t
icatio
n
[
1
9
,
4
1
,
4
3
-
46]
.
i.
E
ase
o
f
ac
ce
s
s
: I
n
f
o
r
m
atio
n
s
t
o
r
ed
at
m
u
ltip
le
n
o
d
es,
en
h
a
n
c
es e
as
y
a
n
d
s
p
ee
d
y
ac
ce
s
s
[
3
6
]
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
1
6
9
3
-
6930
T
E
L
KOM
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K
A
T
elec
o
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m
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o
m
p
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t E
l
C
o
n
tr
o
l
,
Vo
l.
18
,
No
.
5
,
Octo
b
e
r
2
0
2
0
:
2
5
6
0
-
2
5
7
1
2564
j.
P
r
iv
ac
y
:
T
h
e
i
n
f
o
r
m
atio
n
m
u
s
t
b
e
s
ec
u
r
e
f
r
o
m
s
ec
r
et
s
u
r
v
eilla
n
ce
.
U
s
er
s
n
ee
d
s
ec
r
et
k
e
y
s
o
r
ac
ce
s
s
m
ec
h
a
n
i
s
m
to
en
s
u
r
e
th
at
t
h
e
i
n
f
o
r
m
atio
n
i
s
s
a
f
e
f
r
o
m
u
n
au
t
h
o
r
ized
v
ie
w
[
8
,
4
0
,
4
7
,
4
8
]
.
k.
R
ed
u
ci
n
g
co
r
r
u
p
tio
n
:
D
is
tr
ib
u
ted
led
g
er
s
s
to
r
ag
e
allo
w
s
f
o
r
p
r
ev
en
tin
g
co
r
r
u
p
tio
n
i
n
lan
d
o
w
n
er
s
h
ip
d
u
e
to
th
e
s
ec
u
r
e
a
n
d
r
eliab
le
m
ec
h
an
i
s
m
o
f
tr
an
s
f
er
an
d
ch
a
n
g
i
n
g
o
w
n
er
s
h
ip
r
ec
o
r
d
s
[
1
8
,
4
9
]
.
l.
E
r
r
o
r
r
ed
u
ctio
n
:
A
u
to
m
ated
tr
an
s
ac
tio
n
s
r
ed
u
ce
s
c
h
a
n
ce
s
o
f
er
r
o
r
s
d
o
n
e
b
y
h
u
m
a
n
s
[
4
0
,
5
0
]
.
m.
Data
in
te
g
r
it
y
a
n
d
h
i
g
h
er
q
u
al
it
y
:
No
t
ac
ce
s
s
ed
b
y
h
ac
k
er
s
o
r
u
n
a
u
th
o
r
ized
u
s
er
s
m
ea
n
t
h
e
o
r
ig
i
n
alit
y
o
f
th
e
d
ata
m
ai
n
tai
n
ed
[
8
,
4
0
]
.
6.
CASE
S
T
UD
Y:
CURR
E
NT
B
L
O
CK
CH
AIN IM
P
L
E
M
E
NT
A
T
I
O
NS
I
N
L
A
ND
RE
G
I
ST
RY
V
a
r
i
o
u
s
b
l
o
c
k
c
h
a
i
n
i
m
p
l
e
m
e
n
t
a
t
i
o
n
s
i
n
t
h
e
f
i
e
l
d
o
f
l
a
n
d
r
e
g
i
s
t
r
y
h
a
v
e
b
e
e
n
r
e
v
i
e
w
e
d
.
M
a
j
o
r
i
t
y
o
f
i
m
p
l
em
e
n
t
a
t
i
o
n
s
a
r
e
e
i
t
h
e
r
i
n
i
n
i
t
i
a
l
o
r
d
e
v
e
l
o
p
m
e
n
t
s
t
a
g
e
.
S
o
m
e
o
f
t
h
e
m
h
a
v
e
b
e
e
n
i
n
p
i
l
o
t
t
e
s
t
i
n
g
p
h
a
s
e
.
T
h
i
s
s
e
c
t
i
o
n
p
r
e
s
e
n
t
s
a
b
r
i
e
f
d
i
s
c
u
s
s
i
o
n
o
f
t
h
e
e
x
i
s
t
i
n
g
b
l
o
c
k
c
h
a
i
n
i
m
p
l
e
m
e
n
t
a
t
i
o
n
p
r
o
j
e
c
t
s
i
n
t
h
e
f
i
e
l
d
o
f
l
a
n
d
r
e
g
i
s
t
r
y
.
6
.
1
.
J
a
pa
n (
P
ro
j
ec
t
s
t
a
t
us
:
I
nitia
l
s
t
a
g
e)
J
ap
an
ese
g
o
v
er
n
m
en
t
h
as
in
it
i
ated
a
b
lo
ck
ch
ai
n
b
a
s
e
d
p
r
o
j
e
ct
th
at
w
ill
r
ec
o
r
d
all
th
e
la
n
d
r
ec
o
r
d
s
o
n
o
n
e
p
l
a
tf
o
r
m
i
n
s
tead
o
f
c
u
r
r
en
t
s
y
s
te
m
w
h
er
e
s
ev
er
al
m
i
n
i
s
tr
ies
an
d
r
ea
l
es
tate
co
m
p
a
n
ies
h
av
e
th
eir
s
ep
ar
ate
lan
d
r
ec
o
r
d
s
y
s
te
m
.
T
h
e
n
e
w
s
y
s
te
m
h
as
b
ee
n
i
m
p
le
m
e
n
ted
in
f
e
w
c
ities
as
p
ilo
t
test
an
d
o
n
ce
th
e
r
esu
lt
s
ar
e
p
o
s
itiv
e,
it
w
ill
b
e
i
m
p
le
m
e
n
ted
at
n
atio
n
al
le
v
el
i
n
n
e
x
t
f
iv
e
y
ea
r
s
.
A
p
ar
t
f
r
o
m
g
o
v
er
n
m
e
n
t
in
i
tiati
v
e,
a
p
r
o
p
e
r
ty
f
ir
m
n
a
m
ed
Z
w
ei
s
p
ac
e
h
as
alr
ea
d
y
s
tar
ted
a
b
lo
ck
ch
ai
n
b
ased
p
aten
ted
s
y
s
te
m
f
o
r
ev
al
u
atio
n
an
d
tr
an
s
ac
tio
n
o
f
p
r
o
p
er
ty
t
h
at
c
a
n
s
u
b
s
ta
n
tiall
y
r
ed
u
ce
th
e
ti
m
e
co
s
t o
f
tr
an
s
f
er
.
6
.
2
.
Republ
ic
o
f
G
eo
rg
ia
(
P
r
o
j
ec
t
s
t
a
t
us
:
Co
m
plet
ed
)
B
lo
ck
ch
ai
n
-
b
ased
la
n
d
tit
lin
g
s
y
s
te
m
i
n
t
h
e
R
ep
u
b
lic
o
f
Geo
r
g
ia,
a
p
ilo
t
p
r
o
j
ec
t
d
ev
elo
p
ed
in
co
llab
o
r
atio
n
w
it
h
th
e
B
it
f
u
r
y
Gr
o
u
p
,
th
e
Nat
io
n
al
Ag
e
n
c
y
o
f
t
h
e
P
u
b
lic
R
e
g
is
tr
y
(
N
A
P
R
)
,
an
d
th
e
B
lo
ck
ch
ai
n
T
r
u
s
t
A
cc
eler
ato
r
.
B
y
u
s
i
n
g
B
lo
ck
c
h
ain
te
ch
n
o
lo
g
y
,
th
e
Geo
r
g
ia
n
g
o
v
e
r
n
m
e
n
t
ai
m
s
to
b
e
a
lead
er
in
g
o
v
er
n
an
ce
an
d
s
ec
u
r
it
y
a
n
d
to
r
esto
r
e
p
u
b
lic
tr
u
s
t
i
n
in
s
tit
u
tio
n
s
an
d
g
o
v
er
n
m
e
n
t
a
g
en
cie
s
.
I
n
2
0
1
6
,
B
itf
u
r
y
Gr
o
u
p
an
d
th
e
Natio
n
al
Ag
en
c
y
o
f
th
e
P
u
b
li
c
R
eg
i
s
tr
y
(
N
A
P
R
)
d
ev
elo
p
ed
a
B
lo
ck
ch
ain
-
b
ased
lan
d
titl
i
n
g
s
y
s
te
m
i
n
R
ep
u
b
li
c
o
f
Geo
r
g
ia.
I
n
t
h
e
f
ir
s
t
s
ta
g
e
o
f
th
e
p
r
o
j
ec
t,
a
b
l
o
ck
ch
ai
n
b
ased
ti
m
e
-
s
ta
m
p
i
n
g
w
a
s
in
itiated
i
n
th
e
e
x
i
s
ti
n
g
l
an
d
r
eg
is
tr
y
s
y
s
te
m
to
m
a
k
e
th
e
s
y
s
te
m
v
er
i
f
iab
le
an
d
s
ec
u
r
e.
I
n
t
h
e
s
ec
o
n
d
s
tag
e
t
h
e
lan
d
p
u
r
c
h
ase
an
d
s
e
ll
p
r
o
ce
s
s
w
as
m
ad
e
av
ailab
le
u
s
i
n
g
b
lo
ck
ch
ai
n
an
d
b
itco
in
t
ec
h
n
o
lo
g
y
t
h
at
h
a
s
r
ed
u
ce
d
th
e
tr
an
s
ac
tio
n
co
s
t
t
o
ar
o
u
n
d
j
u
s
t
0
.
1
p
er
ce
n
t
o
f
lan
d
v
al
u
atio
n
.
All
t
h
e
r
ec
o
r
d
s
ca
n
b
e
m
ad
e
o
n
li
n
e
an
d
it
w
ill b
e
s
ec
u
r
ed
b
y
p
u
b
li
c
b
lo
ck
ch
ain
.
6
.
3
.
Rus
s
ia
(
P
ro
j
ec
t
s
t
a
t
us
:
P
ro
j
ec
t
in
d
ev
elo
p
m
ent
)
Min
i
s
tr
y
o
f
ec
o
n
o
m
ic
d
ev
elo
p
m
e
n
t
a
n
d
tr
ad
e
o
f
R
u
s
s
ia
h
as
s
tar
ted
a
p
r
o
j
ec
t
th
at
w
ill
r
ec
o
r
d
all
th
e
la
n
d
ti
t
les
o
n
b
lo
ck
c
h
ai
n
b
ased
s
y
s
te
m
a
n
d
f
ac
ilit
ate
th
e
o
n
li
n
e
s
ec
u
r
e
tr
a
n
s
ac
t
io
n
o
f
la
n
d
r
ec
o
r
d
s
.
I
n
t
h
e
f
ir
s
t
s
ta
g
e,
all
t
h
e
r
ec
o
r
d
w
i
ll
b
e
m
o
v
ed
to
b
lo
ck
ch
a
i
n
b
ased
s
y
s
te
m
w
h
er
e
y
o
u
ca
n
v
er
if
y
a
ll
t
h
e
la
n
d
r
ec
o
r
d
s
,
p
r
ev
io
u
s
o
w
n
er
s
a
n
d
an
y
liab
il
it
y
o
n
th
e
p
r
o
p
er
ty
et
c.
6
.
4
.
S
w
eden
(
P
ro
j
ec
t
s
t
a
t
us
:
P
ro
j
ec
t
in
t
est
p
ha
s
e)
T
h
e
S
w
ed
is
h
la
n
d
-
o
w
n
er
s
h
ip
au
t
h
o
r
it
y
L
a
n
t
m
äter
iet
i
n
co
o
p
er
atio
n
w
it
h
telec
o
m
m
u
n
ic
atio
n
f
ir
m
T
elia,
c
o
n
s
u
lt
in
g
f
ir
m
Kair
o
s
Fu
t
u
r
e
an
d
b
lo
ck
ch
ai
n
co
m
p
a
n
y
C
h
r
o
m
a
w
a
y
h
as
d
ev
elo
p
ed
a
b
lo
ck
ch
ain
b
ased
p
r
o
j
ec
t
f
o
r
lan
d
r
eg
is
tr
y
.
T
h
e
p
r
o
j
ec
t
w
i
ll
b
e
th
r
ee
tier
ed
.
I
n
th
e
f
ir
s
t
s
tag
e
a
test
r
u
n
w
a
s
co
n
d
u
cted
to
test
th
e
tec
h
n
o
lo
g
ical
b
en
e
f
it
s
a
n
d
in
t
h
e
s
ec
o
n
d
s
tag
e
co
n
cl
u
d
ed
w
it
h
p
u
b
licatio
n
o
f
r
ep
o
r
t
th
at
d
e
m
o
n
s
tr
ate
th
e
b
en
ef
its
o
f
u
s
i
n
g
s
m
ar
t
c
o
n
tr
ac
ts
in
la
n
d
tr
an
s
ac
tio
n
s
.
I
n
th
e
th
ir
d
s
ta
g
e,
ac
tu
al
tr
an
s
ac
tio
n
s
w
er
e
m
ad
e
u
s
i
n
g
d
ig
ital
s
i
g
n
a
tu
r
es
a
n
d
s
m
ar
t
co
n
tr
ac
t.
T
h
e
s
y
s
te
m
is
cu
r
r
en
tl
y
b
ein
g
e
v
alu
ated
a
n
d
o
n
ce
th
e
r
es
u
lt
s
ar
e
s
atis
f
ac
to
r
y
,
it
w
il
l r
o
ll o
u
t.
6
.
5
.
B
ra
zil
(
P
ro
j
ec
t
s
t
a
t
us
:
P
ro
j
ec
t
in
t
est
ph
a
s
e)
T
h
e
lan
d
r
eg
is
tr
ar
o
f
f
ices
o
f
B
r
az
il
h
av
e
co
llab
o
r
ate
d
U.
S.
C
o
m
p
an
y
Ub
iq
u
it
y
L
L
C
to
d
ev
elo
p
a
b
lo
ck
ch
ai
n
b
ased
s
y
s
te
m
f
o
r
lan
d
r
eg
i
s
tr
y
.
I
n
th
e
in
itial
s
tag
e
t
h
e
p
r
o
j
ec
t
is
b
ein
g
test
i
m
p
le
m
e
n
ted
i
n
t
w
o
B
r
az
i
lian
m
u
n
icip
alitie
s
P
elo
tas
an
d
Mo
r
r
o
R
ed
o
n
d
o
th
at
a
i
m
s
to
m
a
k
e
all
th
e
lan
d
r
ec
o
r
d
s
an
d
tr
an
s
ac
tio
n
1
0
0
%
p
ap
er
less
an
d
co
r
r
u
p
tio
n
f
r
ee
.
I
n
t
h
e
i
n
itial
s
ta
g
e,
a
p
ar
allel
s
y
s
te
m
i
s
b
ein
g
cr
ea
ted
alo
n
g
w
i
t
h
th
e
ex
i
s
ti
n
g
lan
d
r
eg
i
s
tr
y
s
y
s
te
m
an
d
later
o
n
al
l r
ec
o
r
d
s
w
i
ll
b
e
m
o
v
ed
to
b
lo
ck
ch
ain
b
ased
s
y
s
te
m
o
n
l
y
.
6
.
6
.
Ca
na
da
(
P
ro
j
ec
t
s
t
a
t
us
:
I
nitia
l
s
t
a
g
e)
T
h
e
B
C
L
a
n
d
T
itles
a
n
d
Su
r
v
e
y
Au
th
o
r
it
y
(
L
T
SA
)
i
s
c
u
r
r
en
tl
y
w
o
r
k
in
g
o
n
p
r
o
j
ec
t
to
u
t
ilize
b
lo
ck
ch
ai
n
tech
n
o
lo
g
y
in
lan
d
tr
an
s
ac
tio
n
a
n
d
r
ec
o
r
d
m
a
n
ag
e
m
en
t
in
C
an
ad
a
alo
n
g
w
it
h
Dig
ital
I
d
en
tit
y
a
n
d
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th
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itles
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es r
elate
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it
h
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lo
ck
c
h
ain
ap
p
licatio
n
in
la
n
d
r
eg
is
tr
y
.
6
.
7
.
G
ha
na
(
P
ro
j
ec
t
s
t
a
t
us
:
Dev
elo
p
m
e
nt
s
ta
g
e)
Fe
w
m
o
t
iv
ated
e
n
g
in
ee
r
s
cr
ea
ted
a
tea
m
n
a
m
ed
B
en
B
en
to
i
m
p
r
o
v
e
t
h
e
la
n
d
r
eg
i
s
tr
y
s
y
s
t
e
m
u
s
i
n
g
b
lo
ck
ch
ai
n
an
d
cr
y
p
to
-
c
u
r
r
en
c
y
tech
n
iq
u
e
s
.
B
en
B
en
is
cr
ea
tin
g
a
to
p
-
of
-
s
tac
k
lan
d
r
eg
is
tr
y
an
d
v
er
i
f
icatio
n
p
latf
o
r
m
t
h
at
w
ill
co
o
r
d
in
ate
v
ar
io
u
s
f
i
n
an
c
ial
in
s
tit
u
tio
n
s
a
n
d
g
o
v
er
n
m
e
n
t
a
u
t
h
o
r
ities
i
n
u
p
d
atin
g
th
e
c
u
r
r
en
t
r
ec
o
r
d
s
an
d
en
ab
le
s
m
ar
t la
n
d
tr
an
s
ac
tio
n
s
d
ig
itall
y
f
o
r
p
r
o
p
er
ties
.
6
.
8
.
G
ha
na
(
P
ro
j
ec
t
s
t
a
t
us
:
Co
m
plet
ed)
B
itlan
d
L
a
n
d
R
eg
i
s
tr
y
S
y
s
te
m
i
s
a
j
o
in
t
v
en
t
u
r
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o
f
G
h
a
n
a
a
n
d
B
itlan
d
.
B
itlan
d
i
s
a
n
o
n
-
p
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f
it
o
r
g
an
izatio
n
w
o
r
k
in
g
in
o
r
d
er
to
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eso
lv
e
th
e
p
r
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ty
r
elate
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is
s
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u
s
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g
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lo
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ch
ai
n
an
d
u
s
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n
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Gh
a
n
a
as
test
ca
s
e
to
f
u
r
t
h
er
ap
p
l
y
t
h
e
tech
n
o
lo
g
y
i
n
A
f
r
ica
n
r
eg
io
n
.
Sp
ec
i
f
icall
y
,
th
e
p
r
o
j
ec
t
is
b
ein
g
i
m
p
le
m
en
ted
as
p
ilo
t
p
r
o
j
ec
t in
Ku
m
asi r
eg
io
n
.
6
.
9
.
I
nd
ia
(
P
ro
j
ec
t
s
t
a
t
us
:
P
r
o
j
ec
t
in
d
ev
elo
p
m
ent
s
t
a
g
e)
I
n
d
ian
s
tate
s
o
f
T
elan
g
a
n
a
a
n
d
An
d
h
r
a
P
r
ad
esh
i
n
co
llab
o
r
atio
n
w
it
h
C
en
tr
e
f
o
r
Dev
e
lo
p
m
e
n
t
o
f
A
d
v
an
ce
d
C
o
m
p
u
ti
n
g
(
C
-
D
AC
)
ar
e
w
o
r
k
i
n
g
o
n
p
r
o
j
ec
t
th
at
ap
p
lies
th
e
b
lo
ck
ch
ai
n
tech
n
o
lo
g
y
to
i
m
p
r
o
v
e
th
e
lan
d
r
eg
i
s
tr
y
s
y
s
te
m
.
C
u
r
r
en
tl
y
t
h
e
p
r
o
j
ec
t
is
u
n
d
er
g
o
in
g
r
e
v
ie
w
an
d
d
ev
elo
p
m
e
n
t
p
h
ase
an
d
f
u
r
t
h
er
it
w
il
l
b
e
i
m
p
le
m
e
n
ted
i
n
ca
p
ital
ci
t
y
H
y
d
er
ab
ad
an
d
s
u
r
r
o
u
n
d
i
n
g
ar
ea
s
as
a
test
ca
s
e
b
e
f
o
r
e
im
p
le
m
e
n
ti
n
g
it
i
n
th
ese
s
tates c
o
m
p
le
tel
y
.
6
.
1
0
.
Uk
ra
ine (
P
ro
j
ec
t
s
t
a
t
us
:
I
nitia
l
s
t
a
g
e)
S
t
a
t
e
L
an
d
C
a
d
as
t
r
e
o
f
Uk
r
a
in
e
g
o
v
e
r
n
m
en
t
i
s
w
o
r
k
in
g
o
n
b
l
o
c
k
c
h
a
in
b
as
e
d
l
an
d
t
i
tl
e
s
y
s
t
em
w
i
th
B
i
t
f
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r
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G
r
o
u
p
.
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i
t
f
u
r
y
is
a
n
o
n
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p
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t
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p
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p
in
g
Uk
r
a
in
e
t
o
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o
lv
e
th
e
i
s
s
u
es
o
f
c
o
r
r
u
p
t
i
o
n
an
d
b
l
a
c
k
-
m
a
r
k
et
c
o
n
t
r
o
l
.
Pi
l
o
t
p
r
o
je
c
t
w
as
s
t
a
r
t
e
d
in
2
0
1
7
a
n
d
in
t
h
e
b
eg
in
n
in
g
th
e
p
r
o
je
c
t
i
s
c
o
v
e
r
in
g
th
e
as
p
e
c
t
o
f
r
e
c
o
r
d
a
u
t
h
e
n
t
i
c
at
i
o
n
w
ith
o
u
t
a
n
y
d
i
r
ec
t
l
an
d
t
r
an
s
a
c
ti
o
n
b
u
t
i
t
w
il
l
b
e
l
at
e
r
o
n
in
c
lu
d
e
d
in
n
ex
t
p
h
a
s
e
.
T
h
is
p
r
o
je
c
t
i
s
u
s
i
n
g
E
x
o
n
u
m
p
l
atf
o
r
m
f
o
r
p
r
iv
a
te
b
l
o
ck
ch
a
in
s
.
A
t
t
h
e
s
am
e
t
im
e
a
Pa
o
l
o
A
lt
o
b
as
e
d
g
l
o
b
a
l
p
r
o
p
e
r
ty
s
t
o
r
e
Pr
o
p
y
is
p
a
r
tn
e
r
in
g
w
ith
g
o
v
e
r
n
m
en
t
t
o
h
e
l
p
it
in
o
n
l
in
e
r
e
a
l
e
s
t
a
t
e
t
r
a
n
s
a
ct
i
o
n
u
s
in
g
E
th
e
r
eu
m
b
l
o
ck
ch
a
in
.
6
.
1
1
.
Unite
d St
a
t
es
-
s
t
a
t
e
g
o
v
er
n
m
e
nt
(
P
ro
j
ec
t
s
t
a
t
us
:
I
nitia
l
s
t
a
g
e)
P
ao
lo
A
lto
b
ased
r
ea
l
estate
f
i
r
m
P
r
o
p
y
h
a
s
s
i
g
n
ed
a
co
llab
o
r
atio
n
ag
r
ee
m
en
t
w
i
t
h
So
u
t
h
B
u
r
lin
g
to
n
C
ler
k
Of
f
ice
to
p
r
o
v
id
e
b
lo
ck
ch
ain
b
ased
r
ea
l e
s
tate
tr
a
n
s
ac
tio
n
s
a
n
d
r
ec
o
r
d
k
ee
p
in
g
to
m
ak
e
it
co
s
t e
f
f
ec
ti
v
e,
ef
f
icien
t
an
d
s
ec
u
r
e.
I
t’
s
a
p
ilo
t
p
r
o
j
ec
t
th
at
w
ill
b
e
r
ep
licated
in
o
th
er
s
tates
af
ter
s
u
cc
e
s
s
f
u
l
i
m
p
le
m
en
tatio
n
.
Me
an
w
h
ile
W
y
o
m
i
n
g
,
T
eto
n
C
o
u
n
t
y
s
i
g
n
ed
a
Mo
U
w
it
h
Me
d
ici
L
a
n
d
Go
v
er
n
a
n
ce
in
2
0
1
8
to
s
h
i
f
t
th
e
ex
i
s
ti
n
g
lan
d
r
ec
o
r
d
s
to
n
ew
b
lo
ck
c
h
ai
n
b
ased
p
latf
o
r
m
.
6
.
1
2
.
Ne
t
herla
nd
s
(
P
ro
j
ec
t
s
t
a
t
us
:
P
ro
j
ec
t
in
dev
elo
p
m
ent
ph
a
s
e)
T
h
e
L
an
d
R
eg
is
t
r
y
o
r
g
a
n
i
z
a
ti
o
n
o
f
th
e
Ne
th
e
r
l
an
d
s
,
g
en
e
r
al
ly
r
e
f
e
r
r
e
d
a
s
th
e
K
a
d
as
te
r
i
n
i
t
i
at
e
d
a
l
a
n
d
r
e
g
is
t
r
y
p
r
o
je
c
t
in
M
ay
2
0
1
8
t
h
at
u
ti
l
i
ze
s
b
l
o
c
k
c
h
a
in
an
d
A
I
.
T
h
e
l
an
d
r
eg
i
s
t
r
y
d
e
p
a
r
tm
e
n
t
r
eg
is
t
e
r
s
t
h
e
o
w
n
e
r
s
h
i
p
d
e
t
ai
ls
a
n
d
g
e
o
g
r
a
p
h
i
c
al
c
o
o
r
d
i
n
a
t
es
f
o
r
c
o
r
r
e
ct
i
d
e
n
tif
i
c
at
i
o
n
.
T
h
i
s
i
n
f
o
r
m
at
i
o
n
c
an
b
e
a
c
cu
r
a
te
ly
s
t
o
r
e
d
u
s
in
g
b
l
o
ck
ch
a
in
an
d
tim
e
s
t
am
p
in
g
t
ec
h
n
i
q
u
es
.
T
h
e
p
r
o
je
c
t
i
s
in
d
e
v
el
o
p
m
e
n
t
p
h
as
e
.
T
h
is
p
r
o
je
c
t
i
s
a
p
a
r
t
o
f
G
o
v
e
r
n
m
en
t’
s
p
r
o
g
r
am
“
B
l
o
ck
ch
ai
n
Pil
o
t
s
”
t
o
in
t
r
o
d
u
c
e
b
l
o
ck
ch
a
in
i
n
a
l
l
t
h
e
a
s
p
ec
t
s
o
f
e
-
g
o
v
e
r
n
an
ce
.
7.
I
M
P
L
E
M
E
NT
AT
I
O
N:
P
RO
P
O
SE
D
F
RAM
E
WO
RK
F
O
R
B
L
O
CK
CH
AIN B
ASE
D
L
AND
RE
G
I
S
T
RY
SYS
T
E
M
Du
r
in
g
t
h
e
p
r
o
ce
s
s
o
f
la
n
d
tr
ad
in
g
,
t
h
e
b
u
y
er
an
d
s
eller
h
a
v
e
to
s
ig
n
a
p
r
e
-
ag
r
ee
m
e
n
t
co
n
t
r
ac
t
(
s
m
ar
t
co
n
tact)
an
d
th
e
n
f
u
r
th
er
s
e
n
d
th
e
r
eq
u
est
o
f
tr
a
n
s
f
er
to
th
e
r
eg
is
tr
y
o
f
f
ice.
T
h
e
r
eg
is
tr
y
o
f
f
ice
v
er
if
ie
s
th
e
id
en
tit
y
o
f
s
eller
an
d
b
u
y
e
r
th
en
v
er
i
f
y
th
e
lan
d
ti
tle
w
it
h
t
h
e
h
e
lp
o
f
s
u
r
v
e
y
o
r
an
d
d
e
p
ar
tm
e
n
tal
r
ec
o
r
d
s
.
On
ce
t
h
e
au
t
h
e
n
ticatio
n
a
n
d
v
er
i
f
icatio
n
ar
e
co
m
p
lete,
t
h
e
f
i
n
an
c
ial
tr
a
n
s
ac
tio
n
r
ec
o
r
d
is
v
er
if
ied
,
a
n
d
r
eq
u
ir
ed
r
ev
en
u
e
in
t
h
e
f
o
r
m
o
f
tr
an
s
f
er
ch
ar
g
es
an
d
tax
e
s
ar
e
co
llected
th
en
th
e
tr
an
s
f
er
r
eq
u
est
f
u
r
th
er
p
r
o
ce
s
s
es.
Af
ter
co
m
p
leti
n
g
al
l
th
ese
s
tep
s
,
t
h
e
o
w
n
er
s
h
ip
is
tr
an
s
f
er
r
ed
,
an
d
th
e
o
w
n
er
s
h
i
p
ce
r
tif
icate
is
s
u
ed
to
th
e
b
u
y
er
,
an
d
t
h
e
u
p
d
ated
r
ec
o
r
d
s
en
t
to
all
co
n
ce
r
n
ed
d
ep
ar
tm
e
n
t
s
.
T
h
e
v
er
if
ica
tio
n
o
f
s
eller
a
n
d
b
u
y
er
i
s
d
o
n
e
w
it
h
t
h
e
h
elp
o
f
p
r
e
-
a
g
r
e
e
m
en
t I
d
th
at
s
to
r
es t
h
e
s
eller
an
d
b
u
y
er
I
D
an
d
ag
r
ee
m
e
n
t d
etails.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
1
6
9
3
-
6930
T
E
L
KOM
NI
K
A
T
elec
o
m
m
u
n
C
o
m
p
u
t E
l
C
o
n
tr
o
l
,
Vo
l.
18
,
No
.
5
,
Octo
b
e
r
2
0
2
0
:
2
5
6
0
-
2
5
7
1
2566
7
.
1
.
Ne
w
t
r
a
ns
a
ct
io
n blo
ck
On
ce
t
h
e
tr
an
s
ac
tio
n
p
r
o
ce
s
s
i
s
co
m
p
lete
an
d
o
w
n
er
s
h
ip
r
ec
o
r
d
s
ar
e
cr
ea
ted
,
t
h
ese
r
ec
o
r
d
s
n
ee
d
to
b
e
u
p
d
ated
at
all
d
e
p
ar
tm
e
n
t
(
p
ar
ties
in
v
o
lv
ed
n
a
m
el
y
R
e
g
is
tr
y
o
f
f
ice,
s
u
r
v
e
y
o
r
,
r
ev
en
u
e
o
f
f
i
ce
an
d
b
an
k
s
)
th
at
s
to
r
es
an
d
v
er
i
f
ies
t
h
ese
r
ec
o
r
d
s
.
T
h
ese
p
ar
ties
o
r
n
o
d
es
s
to
r
e
a
s
ep
ar
ate
d
is
tr
ib
u
ted
led
g
er
th
at
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ec
o
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d
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th
ese
tr
an
s
ac
tio
n
s
a
n
d
all
th
e
h
i
s
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ical
tr
an
s
ac
t
io
n
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ec
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r
d
s
u
s
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d
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tr
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u
ted
led
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h
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(
DL
T
)
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f
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h
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ic
p
r
o
p
er
ty
.
T
h
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s
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ec
i
f
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c
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ice
ca
n
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k
a
n
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v
alid
ate
th
e
tr
an
s
ac
tio
n
b
ased
o
n
o
w
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er
s
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ip
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o
r
d
s
p
r
ev
io
u
s
l
y
s
to
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ed
in
it
s
d
is
tr
ib
u
ted
led
g
er
.
T
h
e
n
e
w
l
y
cr
ea
ted
tr
an
s
ac
ti
o
n
b
lo
ck
s
ar
e
v
er
if
ied
b
y
th
e
b
y
v
alid
ati
n
g
n
o
d
e
an
d
th
en
it
i
s
b
r
o
ad
ca
s
ted
to
all
th
e
n
o
d
es
w
it
h
i
n
t
h
e
D
L
T
n
et
w
o
r
k
.
T
h
e
o
th
er
v
alid
ati
n
g
n
o
d
es
w
ill
v
er
if
y
a
n
d
ag
r
ee
o
n
th
e
g
en
er
ated
n
o
d
e
w
it
h
t
h
e
h
elp
o
f
a
co
n
s
en
s
u
s
m
ec
h
a
n
i
s
m
a
n
d
th
e
n
f
i
n
all
y
t
h
e
n
e
w
b
lo
ck
is
ad
d
ed
in
th
e
b
lo
ck
ch
a
in
.
T
h
e
co
n
ten
ts
o
f
th
e
g
e
n
er
ated
b
lo
ck
h
av
e
b
ee
n
s
h
o
w
n
i
n
Fi
g
u
r
e
2
.
Fig
u
r
e
2
.
Ne
w
tr
a
n
s
ac
tio
n
b
lo
ck
7
.
2
.
S
m
a
rt
la
nd
t
it
le
co
ntr
a
ct
T
h
e
p
r
e
-
ag
r
ee
m
e
n
t
co
n
tr
ac
t
p
r
o
ce
s
s
b
et
w
ee
n
b
u
y
er
an
d
s
el
ler
h
as
b
ee
n
s
h
o
w
n
b
elo
w
th
at
r
eq
u
ir
es
th
e
f
o
llo
w
i
n
g
d
etails
g
iv
e
n
i
n
Fig
u
r
e
3
.
T
h
e
in
ter
n
al
co
n
te
n
t
s
h
a
v
e
b
ee
n
ex
p
lai
n
ed
in
d
etai
l a
n
d
g
i
v
en
b
elo
w
;
a.
I
d
en
tit
y
:
I
t
s
to
r
es
t
h
e
i
n
f
o
r
m
at
io
n
(
I
D,
n
a
m
e,
s
i
g
n
)
o
f
all
th
e
u
s
er
s
i
n
th
e
s
y
s
te
m
a
n
d
th
e
KYC
f
ea
tu
r
e
f
o
r
th
e
v
er
i
f
icatio
n
o
f
le
g
al
id
en
ti
t
y
.
b.
T
itle:
I
t
s
to
r
es
a
n
d
u
p
d
ates
t
h
e
in
f
o
r
m
at
io
n
r
elate
d
to
th
e
T
itle
o
n
th
e
b
lo
ck
c
h
ain
li
k
e
I
d
,
A
d
d
r
ess
,
s
ta
tu
s
,
th
e
cu
r
r
en
t o
w
n
er
.
c.
Dee
d
: Sto
r
e
an
d
Ma
n
ag
e
s
th
e
in
f
o
r
m
at
io
n
r
elate
d
to
Dee
d
lik
e
-
I
D,
Sel
ler
I
D,
B
u
y
er
I
D,
Pa
y
m
e
n
t
s
tat
u
s
.
d.
Ag
r
ee
m
e
n
t:
Sto
r
e
v
ar
io
u
s
le
g
al
ag
r
ee
m
e
n
ts
,
a
n
in
s
p
ec
tio
n
r
ep
o
r
t
b
y
th
e
s
u
r
v
e
y
o
r
,
p
u
r
ch
ase
ag
r
ee
m
e
n
t
s
,
an
d
th
i
s
is
d
ig
i
tall
y
s
i
g
n
ed
f
o
r
d
ee
d
tr
an
s
itio
n
s
.
e.
E
lectr
o
n
ic
Sig
n
at
u
r
e:
Sto
r
e
d
ig
ital
s
i
g
n
at
u
r
es
o
f
all
th
e
p
ar
ticip
an
ts
i
n
th
e
s
y
s
te
m
an
d
allo
w
to
s
to
r
e
m
u
ltip
le
s
ig
n
ato
r
ies
ac
ti
n
g
in
d
i
f
f
er
en
t
ca
p
ac
ities
in
t
h
e
s
a
m
e
d
o
cu
m
en
t
s
.
Va
lid
ates
t
h
e
d
i
g
ital
s
ig
n
at
u
r
e
f
o
r
m
at.
7
.
3
.
Alg
o
ri
t
h
m
f
o
r
pre
-
a
g
re
em
e
nt
T
h
e
p
r
e
-
ag
r
ee
m
e
n
t
is
e
x
ec
u
te
d
b
etw
ee
n
b
u
y
er
an
d
s
eller
b
ased
o
n
I
Ds
o
f
b
o
th
,
lan
d
I
D
an
d
p
ay
m
e
n
t
d
etails.
T
h
e
b
u
y
er
a
n
d
s
elle
r
w
ill
a
g
r
ee
o
n
th
e
a
m
o
u
n
t
o
f
lan
d
an
d
b
ased
o
n
th
is
th
e
y
w
il
l
cr
ea
te
a
p
r
e
-
ag
r
ee
m
e
n
t
co
n
tr
ac
t.
T
h
e
titl
e
w
ill
b
e
g
e
n
er
ated
b
ased
o
n
p
r
o
p
er
ty
I
D,
o
w
n
er
I
D
an
d
p
a
y
m
e
n
t
r
ec
o
r
d
.
Fu
r
t
h
er
T
ax
atio
n
I
D
w
il
l
b
e
g
en
er
ated
b
ased
o
n
th
e
P
r
o
p
er
ty
I
D
an
d
r
ate
o
f
tax
at
i
o
n
as
p
er
r
ev
en
u
e
d
ep
ar
tm
e
n
t
r
u
les.
T
h
e
p
a
y
m
e
n
t
I
D
w
i
ll
b
e
n
u
l
l
u
n
ti
l
v
er
i
f
ied
b
y
R
e
g
is
tr
y
o
f
f
ice
an
d
p
a
y
m
e
n
t
is
d
o
n
e
b
y
th
e
b
u
y
e
r
.
O
n
ce
th
e
r
eg
i
s
tr
y
o
f
f
ice
v
er
i
f
ies
all
t
h
e
d
etails
o
f
lan
d
,
o
w
n
er
s
h
ip
r
ec
o
r
d
s
an
d
d
u
es
etc.
th
e
b
u
y
er
w
il
l
i
n
itiate
th
e
p
a
y
m
en
t.
Af
t
er
v
er
if
ica
tio
n
o
f
p
a
y
m
e
n
t
d
e
tails
,
t
h
e
r
eg
is
tr
y
o
f
f
ice
w
ill
cr
ea
te
th
e
p
a
y
m
e
n
t
ap
p
r
o
v
al
an
d
s
tar
t
th
e
tr
an
s
f
e
r
p
r
o
ce
s
s
.
T
h
e
p
r
o
p
o
s
ed
b
l
o
c
k
ch
ai
n
b
ased
p
r
e
-
a
g
r
ee
m
e
n
t
alg
o
r
ith
m
f
o
r
lan
d
r
eg
is
tr
y
s
y
s
te
m
h
a
s
b
ee
n
g
iv
e
n
b
elo
w
;
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KOM
NI
K
A
T
elec
o
m
m
u
n
C
o
m
p
u
t E
l
C
o
n
tr
o
l
B
lo
ck
ch
a
in
-
b
a
s
ed
fr
a
mewo
r
k
fo
r
s
ec
u
r
e
a
n
d
r
elia
b
le
la
n
d
r
eg
is
tr
y
s
y
s
tem
(
Mo
h
a
mme
d
S
h
u
a
ib
)
2567
A
l
g
o
r
ith
m
: P
r
e
-
Ag
r
ee
m
e
n
t c
o
n
tr
ac
t
If
(
Seller Id [] <= Null
)
Seller Id [] ← (Id, Name, Sign);
return Seller Id [];
else If
(Buyer [] <=Null)
Buyer Id [] ← (Id, Name, Sign);
return Buyer Id [];
else
Title Id [] ← (property Id, Owner pub key, Payment status);
Taxation Id [] ← (Property Id, rate of taxation);
return
Title Id [], taxation Id []
exit
;
If
(Payment status >= Null) &&
(Buyer Id or Seller Id [] or Title Id [] >= Null)
{
Deed Id [] ← (Seller Id [], Buyer Id [], Title Id []);
Agreement Id [] ← (Taxation Id [], Deed Id []);
Pre
-
Agreement Contract ← (Agreement Id [], Seller Id [], Buyer Id [], Hash);
}
return
Pre
-
Agreement C
ontract []
exit;
Fig
u
r
e
3
.
P
r
e
-
ag
r
ee
m
en
t
c
o
n
tr
ac
t
p
r
o
ce
s
s
8.
F
RAM
E
WO
RK
F
O
R
L
AND
RE
G
I
S
T
RY
SYS
T
E
M
USI
NG
B
L
O
CK
CH
A
I
N
A
n
e
w
f
r
a
m
e
w
o
r
k
f
o
r
b
lo
ck
ch
ain
b
ased
s
ec
u
r
e
an
d
r
eliab
le
lan
d
r
eg
is
tr
y
s
y
s
te
m
h
as
b
ee
n
p
r
o
p
o
s
ed
in
th
is
p
ap
er
g
iv
e
n
i
n
Fi
g
u
r
e
4
.
T
h
e
p
r
o
p
o
s
ed
f
r
am
e
w
o
r
k
u
s
es
b
lo
ck
c
h
ai
n
f
o
r
s
to
r
i
n
g
lan
d
r
ec
o
r
d
s
an
d
is
ta
m
p
er
p
r
o
o
f
an
d
r
eliab
le.
a.
Step
-
1
:
P
r
ea
g
r
ee
m
e
n
t
I
n
s
tep
1
,
th
e
s
e
ller
an
d
b
u
y
er
s
ig
n
a
P
r
e
-
ag
r
ee
m
e
n
t
titl
e
co
n
tr
ac
t
co
n
tai
n
i
n
g
Si
g
n
,
Seller
I
D,
B
u
y
er
I
D,
s
ell
I
D,
Am
o
u
n
t o
f
tr
an
s
f
er
,
p
a
y
m
e
n
t
s
tat
u
s
.
b.
Step
-
2
:
Sell r
eq
u
e
s
t
I
n
th
i
s
s
tep
,
th
e
p
r
e
-
a
g
r
ee
m
e
n
t
titl
e
co
n
tr
ac
t th
e
n
s
e
n
t to
th
e
R
eg
i
s
tr
y
o
f
f
ice
f
o
r
s
ell
r
eq
u
es
t
.
F
o
r
m
ak
in
g
th
e
t
r
u
s
t
in
th
e
s
y
s
tem
f
o
r
a
l
an
d
r
e
g
i
s
t
r
y
u
s
in
g
B
C
an
d
s
o
lv
e
th
e
d
o
u
b
le
s
p
en
d
in
g
p
r
o
b
l
em
,
t
h
e
s
y
s
tem
w
i
ll
p
u
t
a
L
OC
K
o
n
th
e
s
p
e
cif
i
c
l
an
d
t
it
l
e
an
d
w
i
ll
n
o
t
a
ll
o
w
a
n
y
o
th
e
r
t
r
an
s
a
c
ti
o
n
o
n
s
am
e
S
e
l
l
I
D
u
n
t
i
l
t
h
e
A
p
p
r
o
v
al
o
r
th
e
D
i
s
a
p
p
r
o
v
a
l
i
s
r
e
ce
iv
e
d
f
r
o
m
t
h
e
r
eg
i
s
t
r
y
o
f
f
i
ce
.
c.
Step
-
3
:
Ver
if
icatio
n
Fu
r
t
h
er
i
n
s
tep
3
,
t
h
e
r
eg
is
tr
a
r
o
f
f
ice
ca
n
t
h
e
n
s
e
n
d
a
n
o
wn
er
s
h
ip
an
d
d
u
es
v
er
i
f
icat
io
n
an
d
v
a
lid
atio
n
r
eq
u
est to
b
an
k
,
R
e
v
e
n
u
e,
S
u
r
v
e
y
o
r
&
r
e
g
is
tr
y
o
f
f
ice.
R
eg
i
s
tr
ar
o
f
f
ice
a
s
k
th
e
s
u
r
v
e
y
o
r
f
o
r
th
e
v
al
id
atio
n
a
n
d
th
e
r
ep
o
r
t
o
f
th
e
p
r
o
p
er
ty
g
eo
m
e
tr
y
,
p
r
o
p
er
ty
GP
S L
o
ca
tio
n
an
d
p
r
o
p
er
ty
I
D
.
R
eg
i
s
tr
ar
o
f
f
ice
as
k
s
t
h
e
b
an
k
f
o
r
v
er
if
ica
tio
n
a
n
d
r
ep
o
r
t
o
f
th
e
C
r
ed
it
h
is
to
r
y
o
f
b
u
y
er
an
d
s
eller
,
cr
ed
it h
is
to
r
y
o
f
t
h
e
p
r
o
p
er
ty
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
1
6
9
3
-
6930
T
E
L
KOM
NI
K
A
T
elec
o
m
m
u
n
C
o
m
p
u
t E
l
C
o
n
tr
o
l
,
Vo
l.
18
,
No
.
5
,
Octo
b
e
r
2
0
2
0
:
2
5
6
0
-
2
5
7
1
2568
R
eg
i
s
tr
ar
o
f
f
ice
a
s
k
s
t
h
e
R
ev
e
n
u
e
d
ep
ar
t
m
en
t
f
o
r
v
er
if
ica
tio
n
a
n
d
r
ep
o
r
t
o
f
th
e
t
y
p
e
o
f
p
r
o
p
er
ty
a
n
d
ap
p
r
aisals
.
T
h
e
r
eg
is
tr
y
o
f
f
ice
n
o
ti
f
ies
al
l
th
e
d
ep
ar
t
m
en
ts
a
n
d
s
en
d
s
th
e
B
lo
ck
ch
ain
h
a
s
h
to
all
t
h
e
d
ep
ar
tm
e
n
t
s
in
th
e
la
n
d
r
eg
i
s
tr
y
s
y
s
te
m
.
d.
Step
-
4
:
A
p
p
r
o
v
al
I
n
s
tep
4
,
th
e
r
e
g
is
tr
y
o
f
f
ice
w
i
ll
g
et
i
n
f
o
r
m
atio
n
f
r
o
m
al
l
th
e
d
ep
ar
t
m
e
n
t
to
w
h
o
m
th
e
v
er
if
icatio
n
r
eq
u
est h
a
s
b
ee
n
s
e
n
t.
e.
Step
-
5
:
No
tific
atio
n
Af
ter
g
et
tin
g
p
o
s
iti
v
e
v
er
i
f
ica
tio
n
r
ep
o
r
ts
f
r
o
m
th
e
d
ep
ar
t
m
en
ts
,
t
h
e
r
eg
is
tr
y
o
f
f
ice
n
o
tif
i
es
th
e
B
u
y
er
th
at
O
w
n
er
s
h
ip
v
e
r
if
icatio
n
h
as
b
ee
n
v
er
if
ied
an
d
n
o
ti
f
i
es
th
e
m
to
s
ig
n
t
h
e
ag
r
ee
m
en
t
d
ig
ital
l
y
,
o
th
er
w
is
e
d
is
ap
p
r
o
v
e
th
e
r
eq
u
est.
f.
Step
-
6
:
I
n
itia
te
f
u
n
d
tr
an
s
f
er
Af
ter
t
h
e
n
o
tific
atio
n
,
i
n
t
h
i
s
s
tep
t
h
e
s
y
s
te
m
tr
ac
k
s
t
h
e
a
m
o
u
n
t
l
is
ted
i
n
t
h
e
p
r
e
-
a
g
r
ee
m
en
t
to
b
e
tr
an
s
f
er
r
ed
to
th
e
b
an
k
b
y
t
h
e
b
u
y
er
.
g.
Step
-
7
:
A
p
p
r
o
v
e
f
u
n
d
tr
an
s
f
er
I
n
Step
7
th
e
B
a
n
k
c
h
ec
k
s
t
h
e
f
u
n
d
tr
a
n
s
f
er
r
ed
w
it
h
r
e
f
er
en
ce
to
th
e
p
re
-
ag
r
ee
m
e
n
t
titl
e
co
n
tr
ac
t
an
d
ap
p
r
o
v
es it.
An
d
m
ar
k
s
th
e
p
a
y
m
e
n
t a
s
r
ec
eiv
ed
o
n
P
r
e
-
ag
r
e
e
m
en
t title
co
n
tr
ac
t
h.
Step
-
8
:
T
r
an
s
f
er
d
etail
Af
ter
ap
p
r
o
v
al
o
f
th
e
Fu
n
d
tr
an
s
f
er
in
s
tep
7
,
in
th
is
s
tep
th
e
b
an
k
s
e
n
d
th
e
tr
an
s
f
er
d
etails
to
th
e
r
eg
i
s
tr
y
o
f
f
ice.
i.
Step
-
9
:
O
w
n
er
s
h
ip
tr
an
s
f
er
I
n
th
i
s
s
tep
,
R
eg
is
tr
y
o
f
f
ice
ap
p
r
o
v
es
th
e
O
w
n
er
s
h
ip
tr
an
s
f
er
r
eq
u
e
s
t
an
d
n
o
ti
f
ies
t
h
e
Seller
an
d
t
h
e
B
u
y
er
ab
o
u
t th
e
la
n
d
titl
e
tr
an
s
f
er
.
R
ec
o
r
d
in
g
o
f
f
ice
i
n
r
eg
is
t
r
y
o
f
f
ice
ch
a
n
g
e
s
th
e
o
w
n
er
s
h
i
p
r
ec
o
r
d
s
.
j.
Step
-
10
:
O
w
n
er
s
h
ip
ce
r
ti
f
icate
Af
ter
tr
a
n
s
f
er
,
in
t
h
i
s
s
tep
t
h
e
R
eg
i
s
tr
y
o
f
f
ice
g
e
n
er
ates
a
n
E
lectr
o
n
ic
titl
e
d
ee
d
w
it
h
B
lo
ch
ch
ai
n
h
as
h
an
d
QR
co
d
e
to
th
e
b
u
y
er
.
O
wn
er
s
h
ip
ce
r
tif
icate
i
s
g
i
v
e
n
to
th
e
b
u
y
er
k.
Step
-
11
:
R
ec
o
r
d
u
p
d
ate
I
n
th
e
f
i
n
al
s
tep
1
1
,
th
e
o
w
n
er
s
h
ip
tr
an
s
f
er
ce
r
tif
ica
te
u
p
d
ated
t
o
all
th
e
d
ep
ar
t
m
e
n
t
s
(
r
eg
is
tr
y
o
f
f
ice,
b
an
k
,
s
u
r
y
er
,
r
ev
e
n
u
e
o
f
f
ice)
w
it
h
b
lo
ck
c
h
ai
n
h
a
s
h
to
all
t
h
e
d
ep
ar
tm
e
n
ts
i
n
th
e
la
n
d
r
eg
i
s
t
r
y
s
y
s
te
m
.
Fig
u
r
e
4
.
Fra
m
e
w
o
r
k
f
o
r
lan
d
r
eg
is
tr
y
s
y
s
te
m
u
s
i
n
g
b
lo
ck
c
h
ain
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KOM
NI
K
A
T
elec
o
m
m
u
n
C
o
m
p
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l
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tr
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lo
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in
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b
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fr
a
mewo
r
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r
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u
r
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r
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le
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r
eg
is
tr
y
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y
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tem
(
Mo
h
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mme
d
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h
u
a
ib
)
2569
9.
CO
NCLU
SI
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h
is
p
ap
er
r
ev
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w
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t
h
e
e
x
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tin
g
p
r
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ce
d
u
r
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d
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s
u
es
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t
h
e
tr
ad
itio
n
al
lan
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g
is
tr
y
s
y
s
te
m
.
T
h
e
tr
ad
itio
n
al
s
y
s
te
m
i
s
p
r
o
n
e
to
v
ar
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u
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t
y
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o
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ta
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ev
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ir
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g
also
in
t
h
e
f
o
r
m
o
f
p
ap
er
r
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r
ce
s
,
s
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e
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ir
e
m
e
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o
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a
s
t
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k
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ec
u
r
it
y
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o
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t
h
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r
ec
o
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d
s
.
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h
e
s
y
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te
m
i
s
also
ti
m
e
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co
n
s
u
m
i
n
g
a
n
d
r
eq
u
ir
es
m
u
ch
ti
m
e
in
v
er
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f
icatio
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d
u
p
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atin
g
p
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o
ce
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t
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b
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s
p
en
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i
n
g
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a
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iece
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m
o
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o
n
e
b
u
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)
in
cr
ea
s
es.
T
h
ese
is
s
u
es
af
f
ec
t
t
h
e
ec
o
n
o
m
y
,
a
n
d
p
eo
p
le
ar
e
s
ce
p
tical
in
in
v
est
in
g
in
la
n
d
tr
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t
h
at
ex
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u
d
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a
lar
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e
c
h
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n
k
o
f
m
o
n
e
y
f
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t
h
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eg
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l
ar
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y
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t
h
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h
in
d
er
s
th
e
g
r
o
w
th
o
f
a
n
y
co
u
n
tr
y
.
T
h
ese
i
s
s
u
es
als
o
a
f
f
ec
t
th
e
tax
an
d
r
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v
e
n
u
e
co
llectio
n
f
o
r
g
o
v
er
n
m
en
t
a
n
d
b
lack
m
o
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th
e
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r
m
o
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n
a
m
ed
p
r
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ties
in
cr
ea
s
es.
B
lo
ck
ch
ain
tec
h
n
o
lo
g
y
h
a
s
th
e
p
o
ten
tial
to
co
u
n
ter
all
t
h
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is
s
u
e
s
.
I
n
th
i
s
p
ap
er
,
a
f
r
a
m
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w
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k
f
o
r
s
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r
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eliab
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la
n
d
r
eg
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y
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h
a
s
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ee
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r
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p
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at
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ter
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o
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atin
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s
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h
e
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ed
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y
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m
i
s
v
er
y
ec
o
n
o
m
ical,
as
it
r
eq
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ir
e
s
v
er
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les
s
h
u
m
an
r
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r
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s
an
d
m
o
r
e
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le.
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h
is
p
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o
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alg
o
r
ith
m
f
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t
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d
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.
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ip
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atin
g
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ter
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(
o
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as
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ee
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is
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u
s
s
ed
in
d
etail.
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n
f
u
t
u
r
e,
th
e
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ith
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g
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ics
(
FT
I
R
)
,
U
T
M
f
o
r
th
eir
s
u
p
p
o
r
t in
co
n
d
u
ct
in
g
t
h
is
r
esear
c
h
.
RE
F
E
R
E
NC
ES
[1
]
A.
Do
b
h
a
l,
M
.
Re
g
a
n
,
"
Im
m
u
tab
i
li
ty
a
n
d
A
u
d
it
a
b
il
it
y
:
T
h
e
Crit
ica
l
El
e
m
e
n
ts i
n
P
ro
p
e
rty
Rig
h
ts Reg
istri
e
s
,"
An
n
u
a
l
W
o
rld
Ba
n
k
c
o
n
fer
e
n
c
e
o
n
la
n
d
a
n
d
p
ro
p
e
rty
.
:
An
n
u
a
l
W
o
rl
d
Ba
n
k
c
o
n
fer
e
n
c
e
o
n
la
n
d
a
n
d
p
ro
p
e
rty
,
2
0
1
6
.
[2
]
M.
S
w
a
n
,
e
t
a
l.
,
"
A
n
ti
c
ip
a
ti
n
g
th
e
e
c
o
n
o
m
ic
b
e
n
e
f
it
s
o
f
b
lo
c
k
c
h
a
in
,
"
T
e
c
h
n
o
l
o
g
y
I
n
n
o
v
a
ti
o
n
M
a
n
a
g
e
me
n
t
Rev
iew
,
v
o
l.
7
,
n
o
.
10
,
p
p
.
6
-
13
,
2
0
1
7
.
[3
]
R.
Be
n
b
u
n
a
n
-
F
ich
,
A
.
Ca
ste
ll
a
n
o
s,
"
Dig
it
iza
ti
o
n
o
f
L
a
n
d
Re
c
o
r
d
s:
F
ro
m
P
a
p
e
r
to
B
lo
c
k
c
h
a
in
,"
T
h
irty
Ni
n
t
h
In
ter
n
a
t
io
n
a
l
C
o
n
fer
e
n
c
e
o
n
I
n
fo
r
ma
ti
o
n
S
y
ste
ms
,
2
0
1
8
.
[4
]
D.
Do
m
e
h
e
r,
e
t
a
l.
,
"
Ac
c
e
s
s
to
Cre
d
it
in
th
e
De
v
e
lo
p
in
g
W
o
rld
:
d
o
e
s
lan
d
re
g
istratio
n
m
a
tt
e
r?
,"
J
o
u
rn
a
l
T
h
ird
W
o
rld
Qu
a
rte
rly
,
v
o
l.
3
3
,
n
o
.
1
,
p
p
.
1
6
1
-
1
7
5
,
2
0
1
2
.
[5
]
S
.
T
.
S
id
d
iq
u
i
,
e
t
a
l.
,
"
Blo
c
k
c
h
a
in
S
e
c
u
rit
y
T
h
re
a
ts,
A
tt
a
c
k
s
a
n
d
Co
u
n
term
e
a
su
re
s,
"
Amb
ien
t
Co
m
mu
n
ica
t
io
n
s
a
n
d
Co
mp
u
ter
S
y
ste
ms
,
S
p
ri
n
g
e
r
,
p
p
.
5
1
-
62
,
2
0
2
0
.
[6
]
J.
V
o
s,
"
Blo
c
k
c
h
a
in
-
b
a
se
d
lan
d
re
g
istr
y
:
p
a
n
a
c
e
a
il
lu
sio
n
o
r
so
m
e
th
in
g
in
b
e
tw
e
e
n
?
,
"
IPR
A/
CINDER
c
o
n
g
re
ss
,
Du
b
a
i
,
2
0
1
6
.
[7
]
K.
S
.
Kru
p
a
,
M
.
S
.
A
k
h
il
,
"
Re
sh
a
p
in
g
th
e
Re
a
l
Estate
I
n
d
u
stry
Us
in
g
Blo
c
k
c
h
a
in
,
"
Eme
rg
i
n
g
Res
e
a
rc
h
i
n
El
e
c
tro
n
ics
,
Co
m
p
u
ter
S
c
ien
c
e
a
n
d
T
e
c
h
n
o
l
o
g
y
,
S
p
ri
n
g
e
r
,
p
p
.
2
5
5
-
263
,
2
0
1
9
.
[8
]
G
.
A
b
h
ish
e
k
,
"
P
ro
p
e
rty
Re
g
istratio
n
a
n
d
L
a
n
d
Re
c
o
r
d
M
a
n
a
g
e
m
e
n
t
v
ia
Blo
c
k
c
h
a
in
s
,
"
T
h
e
sis,
In
d
i
a
n
In
stit
u
te
Of
T
e
c
h
n
o
lo
g
y
Ka
n
p
u
r,
2
0
1
9
.
[9
]
K.
S
p
ra
g
u
e
,
e
t
a
l.
,
"
Off
li
n
e
a
n
d
f
a
ll
in
g
b
e
h
in
d
:
Ba
rriers
to
In
tern
e
t
a
d
o
p
ti
o
n
,"
M
c
Kin
se
y
&
Co
m
p
a
n
y
,
2
0
1
4
.
[1
0
]
N.
G
o
d
e
rd
z
ish
v
il
i,
e
t
a
l.
,
"
G
e
o
rg
ia'
s
Blo
c
k
c
h
a
in
-
p
o
w
e
re
d
P
ro
p
e
rt
y
R
e
g
istratio
n
:
Ne
v
e
r
b
lo
c
k
e
d
,
Alw
a
y
s
S
e
c
u
re
d
:
Ow
n
e
rsh
ip
Da
ta
Ke
p
t
Be
st
!
,"
Pro
c
e
e
d
in
g
s
o
f
th
e
1
1
th
I
n
ter
n
a
ti
o
n
a
l
C
o
n
fer
e
n
c
e
o
n
T
h
e
o
ry
a
n
d
Pra
c
ti
c
e
o
f
El
e
c
tro
n
ic Go
v
e
rn
a
n
c
e
,
A
CM
,
2
0
1
8
.
[
1
1
]
M.
B
a
l
,
"
S
e
c
u
r
i
n
g
p
r
o
p
e
r
t
y
r
i
g
h
t
s
i
n
I
n
d
i
a
t
h
r
o
u
g
h
d
i
s
t
r
i
b
u
t
e
d
l
e
d
g
e
r
t
e
c
h
n
o
l
o
g
y
,
"
O
b
s
e
r
v
e
r
R
e
s
e
a
r
c
h
F
o
u
n
d
a
t
i
o
n
,
2017.
[1
2
]
V
.
T
h
a
k
u
r,
e
t
a
l.
,
"
L
a
n
d
re
c
o
rd
s
o
n
b
l
o
c
k
c
h
a
in
f
o
r
i
m
p
le
m
e
n
tatio
n
o
f
lan
d
ti
tl
in
g
in
I
n
d
ia
,"
In
ter
n
a
ti
o
n
a
l
J
o
u
r
n
a
l
o
f
In
fo
rm
a
t
io
n
M
a
n
a
g
e
me
n
t
,
v
o
l.
5
2
,
2
0
1
9
.
[1
3
]
A
.
No
rta,
C.
F
e
rn
a
n
d
e
z
,
S
.
Hic
k
m
o
tt
,
"
Co
m
m
e
rc
ial
P
ro
p
e
rty
T
o
k
e
n
izin
g
W
it
h
S
m
a
rt
Co
n
trac
ts
,"
2
0
1
8
In
ter
n
a
ti
o
n
a
l
J
o
in
t
C
o
n
fer
e
n
c
e
o
n
Ne
u
r
a
l
Ne
tw
o
rk
s (
IJ
CNN)
,
2
0
1
8
.
[1
4
]
N.
Ka
l
y
u
z
h
n
o
v
a
,
"
T
ra
n
s
f
o
r
m
a
ti
o
n
o
f
th
e
re
a
l
e
st
a
te
m
a
rk
e
t
o
n
th
e
b
a
sis
o
f
u
se
o
f
th
e
b
lo
c
k
c
h
a
i
n
tec
h
n
o
l
o
g
ies
:
o
p
p
o
rt
u
n
it
ies
a
n
d
p
ro
b
lem
s
,"
M
A
T
EC
W
e
b
o
f
Co
n
fer
e
n
c
e
s
,
EDP
S
c
ien
c
e
s
,
2
0
1
8
.
[1
5
]
J.
M
c
M
u
rre
n
,
A
.
Yo
u
n
g
,
a
n
d
S
.
V
e
rh
u
lst,
"
A
d
d
re
ss
in
g
T
ra
n
sa
c
t
io
n
C
o
sts
T
h
ro
u
g
h
Bl
o
c
k
c
h
a
in
a
n
d
Id
e
n
ti
ty
in
S
w
e
d
ish
L
a
n
d
T
ra
n
s
f
e
rs
,"
G
OV
LA
B,
2
0
1
8
.
[1
6
]
P.
Ku
m
a
r,
e
t
a
l.
"
A
Bu
y
e
r
a
n
d
S
e
ll
e
r’s
P
ro
to
c
o
l
v
ia
Util
iza
ti
o
n
o
f
S
m
a
rt
Co
n
trac
ts
U
sin
g
Blo
c
k
c
h
a
i
n
T
e
c
h
n
o
lo
g
y
,
"
In
ter
n
a
t
io
n
a
l
C
o
n
fer
e
n
c
e
o
n
A
d
v
a
n
c
e
d
I
n
fo
rm
a
ti
c
s fo
r C
o
mp
u
ti
n
g
Res
e
a
rc
h
,
S
p
ri
n
g
e
r
,
p
p
.
4
6
4
-
4
7
4
,
2
0
1
9
.
[1
7
]
D.
F
e
rn
a
n
d
o
,
N.
Ra
n
a
sin
g
h
e
,
"
P
e
rm
issio
n
e
d
Distrib
u
ted
L
e
d
g
e
rs
f
o
r
L
a
n
d
T
ra
n
sa
c
ti
o
n
s;
A
Ca
se
S
tu
d
y
,"
In
ter
n
a
t
io
n
a
l
C
o
n
fer
e
n
c
e
o
n
B
u
si
n
e
ss
Pro
c
e
ss
M
a
n
a
g
e
me
n
t
,
S
p
rin
g
e
r,
p
p
.
1
3
6
-
1
5
0
,
2
0
1
9
.
[
1
8
]
M.
T
h
e
m
i
s
t
o
c
l
e
o
u
s
,
"
B
l
o
c
k
c
h
a
i
n
T
e
c
h
n
o
l
o
g
y
a
n
d
L
a
n
d
R
e
g
i
s
t
r
y
,"
T
h
e
C
y
p
r
u
s
R
e
v
i
e
w
,
v
o
l
.
30
,
n
o
.
2
,
p
p
.
1
9
9
-
206
,
2
0
1
8
.
[1
9
]
J.
F
a
irf
ield
,
"
Bit
P
ro
p
e
rty
,
"
S
o
u
th
e
rn
Ca
li
fo
rn
i
a
L
a
w
Rev
iew
,
v
o
l
.
8
8
,
p
p
.
8
0
5
,
2
0
1
5
.
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