<s>
Lavarand	B-Architecture
was	O
a	O
hardware	O
random	O
number	O
generator	O
designed	O
by	O
Silicon	O
Graphics	O
that	O
worked	O
by	O
taking	O
pictures	O
of	O
the	O
patterns	O
made	O
by	O
the	O
floating	O
material	O
in	O
lava	O
lamps	O
,	O
extracting	O
random	O
data	O
from	O
the	O
pictures	O
,	O
and	O
using	O
the	O
result	O
to	O
seed	O
a	O
pseudorandom	B-Algorithm
number	I-Algorithm
generator	I-Algorithm
.	O
</s>
<s>
Although	O
the	O
secondary	O
part	O
of	O
the	O
random	O
number	O
generation	O
uses	O
a	O
pseudorandom	B-Algorithm
number	I-Algorithm
generator	I-Algorithm
,	O
the	O
full	O
process	O
essentially	O
qualifies	O
as	O
a	O
"	O
true	O
"	O
random	O
number	O
generator	O
due	O
to	O
the	O
random	O
seed	O
that	O
is	O
used	O
.	O
</s>
<s>
It	O
was	O
covered	O
under	O
the	O
now-expired	O
,	O
titled	O
"	O
Method	O
for	O
seeding	O
a	O
pseudo-random	B-Algorithm
number	I-Algorithm
generator	I-Algorithm
with	O
a	O
cryptographic	O
hash	O
of	O
a	O
digitization	O
of	O
a	O
chaotic	O
system.	O
"	O
</s>
<s>
there	O
was	O
a	O
Web	O
site	O
at	O
lavarand.sgi.com	O
demonstrating	O
the	O
technique	O
.	O
</s>
<s>
Despite	O
the	O
short	O
life	O
of	O
lavarand.sgi.com,	O
it	O
is	O
often	O
cited	O
as	O
an	O
example	O
of	O
an	O
online	O
random	O
number	O
source	O
.	O
</s>
<s>
,	O
Cloudflare	B-Application
maintains	O
a	O
similar	O
system	O
of	O
lava	O
lamps	O
for	O
securing	O
Internet	O
traffic	O
.	O
</s>
