<s>
Microsoft	B-General_Concept
ION	I-General_Concept
is	O
Microsoft	O
's	O
self-sovereign	B-General_Concept
identity	I-General_Concept
system	O
.	O
</s>
<s>
It	O
builds	O
on	O
the	O
Bitcoin	B-Application
blockchain	I-Application
and	O
IPFS	B-Protocol
through	O
a	O
Sidetree-based	O
DID	B-Protocol
network	O
.	O
</s>
