<s>
Nano	B-Protocol
(	O
Abbreviation	O
:	O
XNO	O
;	O
sign	O
:	O
Ӿ	O
)	O
is	O
a	O
cryptocurrency	O
.	O
</s>
<s>
The	O
nano	B-Protocol
cryptocurrency	O
is	O
based	O
on	O
a	O
directed	O
acyclic	O
graph	O
data	O
structure	O
and	O
distributed	O
ledger	O
,	O
making	O
it	O
possible	O
for	O
Nano	B-Protocol
to	O
work	O
without	O
intermediaries	O
.	O
</s>
<s>
achieving	O
consensus	B-Operating_System
)	O
,	O
it	O
uses	O
a	O
voting	O
system	O
with	O
weight	O
based	O
on	O
the	O
amount	O
of	O
currency	O
accounts	O
hold	O
.	O
</s>
<s>
Nano	B-Protocol
was	O
launched	O
in	O
October	O
2015	O
by	O
Colin	O
LeMahieu	O
to	O
address	O
the	O
Bitcoin	B-Protocol
scalability	I-Protocol
problem	I-Protocol
and	O
was	O
created	O
with	O
the	O
intention	O
to	O
reduce	O
confirmation	O
times	O
and	O
fees	O
.	O
</s>
<s>
Colin	O
LeMahieu	O
started	O
the	O
development	O
of	O
Nano	B-Protocol
in	O
2014	O
under	O
its	O
original	O
name	O
"	O
RaiBlocks	B-Protocol
"	O
.	O
</s>
<s>
A	O
year	O
later	O
,	O
RaiBlocks	B-Protocol
was	O
distributed	O
for	O
free	O
through	O
a	O
captcha-secured	O
faucet	O
.	O
</s>
<s>
In	O
2017	O
,	O
after	O
126,248,289	O
RaiBlocks	B-Protocol
were	O
distributed	O
,	O
the	O
faucet	O
shut	O
down	O
.	O
</s>
<s>
This	O
fixed	O
the	O
total	O
supply	O
to	O
133,248,297	O
RaiBlocks	B-Protocol
,	O
after	O
an	O
addition	O
of	O
a	O
7,000,000	O
RaiBlocks	B-Protocol
developer	O
fund	O
.	O
</s>
<s>
On	O
January	O
31	O
,	O
2018	O
,	O
RaiBlocks	B-Protocol
was	O
rebranded	O
to	O
Nano	B-Protocol
.	O
</s>
<s>
Users	O
were	O
prevented	O
from	O
accessing	O
assets	O
stored	O
on	O
the	O
platform	O
,	O
which	O
was	O
collectively	O
worth	O
17	O
million	O
Nano	B-Protocol
.	O
</s>
<s>
Nano	B-Protocol
prices	O
had	O
been	O
around	O
$10	O
prior	O
to	O
the	O
hack	O
and	O
after	O
the	O
hack	O
fell	O
to	O
$0.10	O
.	O
</s>
<s>
Nano	B-Protocol
uses	O
a	O
block-lattice	O
data	O
structure	O
,	O
where	O
every	O
account	O
has	O
its	O
own	O
blockchain	B-Application
for	O
storing	O
transactions	O
.	O
</s>
<s>
Consensus	B-Operating_System
is	O
reached	O
through	O
an	O
algorithm	O
similar	O
to	O
proof	B-Protocol
of	I-Protocol
stake	I-Protocol
.	O
</s>
<s>
In	O
this	O
system	O
,	O
the	O
voting	O
weight	O
is	O
distributed	O
to	O
accounts	O
based	O
on	O
the	O
amount	O
of	O
Nano	B-Protocol
they	O
hold	O
;	O
accounts	O
then	O
freely	O
delegate	O
this	O
weight	O
to	O
a	O
peer	O
(	O
node	O
)	O
of	O
their	O
choice	O
.	O
</s>
<s>
If	O
two	O
contradictory	O
transactions	O
are	O
broadcast	O
to	O
the	O
network	O
,	O
indicating	O
a	O
double-spend	B-Operating_System
attempt	O
,	O
nodes	O
will	O
then	O
vote	O
for	O
either	O
the	O
transactions	O
.	O
</s>
