ORCID

Web of Science

webofscience.com

ID.me

id.me

Symbolic ID

symbolic.id

Land id

id.land

Zenodo

zenodo.org

Clarivate

clarivate.com

Crossref

crossref.org

Credly

credly.com

Onfido

onfido.com

LoginID

loginid.io

IDX

idx.us

Pipl

pipl.com

Proof

proof.com

DataCite Commons

commons.datacite.org

mEDRA

medra.org

CredSure

credsure.io

Omdia

omdia.com

IDC

idc.com

BigID

bigid.com

Orphex

orphex.co

Criipto

criipto.com

TrustID

trustid.co.uk

Middesk

middesk.com

Orgnostic

orgnostic.com