Table 2.

“SSI” is one name given to very different projects

Projects labelled “SSI”	Crypto-assets	Use of VCs	Aries-compatible wallet	Issuance fee-tokens	Use of blockchain	On-chain identifiers required	Use of ZKPs
Aries/Indy affiliates	No	Yes	Yes	No	Yes	No	Yes
ESSIF, ID_Alastria	No	Yes	No	No	Yes	Yes	No
Everest	Yes	Yes	No	Yes	Yes	Yes	No
Microsoft’s ION	No	Yes	No	No	Yes	Yes	No
InfoCert’s Dizme	No	Yes	Yes	Yes	Yes	No	Yes
MATTR	No	Yes	No	No	No	No	Yes
Ontology	Yes	Yes	No	Yes	Yes	Yes	Yes
Procivis’s eID+	No	No	No	No	No	No	No
Serto (ex-uPort)	Yes	Yes	No	No	Yes	Yes	No
Spruce’s Credible	No	Yes	No	No	Yes	No	No
Verifiable Credentials Ltd.	No	Yes	No	No	No	No	No
Workday	No	Yes	No	No	Yes	Yes	No