







The PLC Organization is a small Swiss Association ("Verein") which provides open network identifier infrastructure. It serves as a neutral steward for the Public Ledger of Credentials (PLC) system, which provides persistent identifiers to over 40 million accounts in the atproto social web ecosystem.
PLC Organization
The PLC Organization is a small Swiss Association ("Verein") which provides open network identifier infrastructure. It serves as a neutral steward for the Public Ledger of Credentials (PLC) system, which provides persistent identifiers to over 40 million accounts in the atproto social web ecosystem.
did:plc Directory
PLC is a persistent global identifier system, which allows accounts to retain relationships while changing names or migrating between service providers. It makes use of cryptography and gives individuals (or organizations) direct control and ownership over their identitifier, but does not make use of any blockchain or cryptocurrency technology, and is inexpensive enough to provide as a no-cost service.
did:plc Directory
PLC is a persistent global identifier system, which allows accounts to retain relationships while changing names or migrating between service providers. It makes use of cryptography and gives individuals (or organizations) direct control and ownership over their identitifier, but does not make use of any blockchain or cryptocurrency technology, and is inexpensive enough to provide as a no-cost service.
Creating an Independent Public Ledger of Credentials (PLC) Directory Organization - AT Protocol
As the next step of maturing governance of the PLC identity system, Bluesky Social PBC is supporting the creation of an independent organization to operate the PLC directory.

First steps of the PLC organization - Public Ledger of Credentials Organization
One year ago, Bluesky Social PBC announced their intention to facilitate the creation of an independent organization to operate the Public Ledger of Credenti…
Adversarial PLC directory migration - microcosm
Contingency planning: what's our credible failover for the centralized underpinning of ATProto identities?
Adversarial PLC directory migration - microcosm
Contingency planning: what's our credible failover for the centralized underpinning of ATProto identities?
did-method-plc/did-method-plc
Public Ledger of Credentials: a cryptographic, strongly-consistent, and recoverable DID method
plc-passkey · Passkeys as PLC Rotation Keys
Derive deterministic secp256k1 rotation keys from passkeys via WebAuthn PRF and add them to AT Protocol did:plc documents.
Building AIP: An ATProtocol Authorization Gateway - Nick's Blog
OAuth is the first challenge developers face in the atmosphere. This post is about AIP, the authorization gateway we built at Graze Social to alleviate some of the pain.
09.06.2026 - release 1 of 3 Sovereign social infrastructure, one layer at a time. We’re now mirroring the did:plc directory - where identities live - on European infrastructure: plc.eurosky.network Decentralisation means not depending on a single directory.
Hello World from the PLC organization (plcred.org)! The org was soft-announced back in March at AtmosphereConf. We've been working through logistics step by step and now have a public web presence we can point to.
First steps of the PLC organization
blog.plcred.orgdid:cow: Another idea to billionaire-proof ATProto IDs, also "art of using a blockchain without using a blockchain". Blockchain-managed wrapper ID, no tx to create, points to a did:plc/did:web but you can move it if something goes wrong. Got carried away and made a resolver and front-end cow.watch
did:cow
cow.watchEdmund Edgar
Wrote up an idea to improve the DID:PLC system to protect us from the inevitable corporate enshittification phase when the centralized server stops serving mirrors for a bit then starts screwing us over. It's kind of "art of using a blockchain without using a blockchain" github.com/edmundedgar/did-plc-p2p-guard…
I suspect we’ll see a bunch of apps that leverage atproto’s did:plc identity layer but store data out of band.
boltless