What is PeerBadge?

A PeerBadge is a privacy-preserving yet publicly verifiable credential denoting trustworthiness. It is also the name of the underlying open protocol that makes these badges possible.

PeerBadge the protocol is a protocol for attestation in a decentralized and privacy-preserving way based on conferred and revocable trust. 

It allows any party to vouch for any other party as trustworthy and uses advanced cryptography to keep the latter party's identity anonymous – even from the party who vouched for them.

To accomplish this, the PeerBadge introduces three actors:

• Signer – Individual that vouches for another; attests to their trustworthiness by signing their badge
• Holder – Person being vouched for; holds a signed badge that marks them as trusted
• Verifier – Any party (person, app, marketplace) that checks a badge to verify who signed it

Note that it is up to the verifier to decide which signers to trust, which in turn informs which holders they trust. And just as trust can be issued via a signed badge, it can also be revoked by the signer.

You can learn more about PeerBadge and how it works at peerbadge.org.