The Antheos OID Registry
One public root for identifiers.
The OID Registry hands out and resolves Antheos origin identifiers — the names of the organizations, people and other entities that create and own instances. Registering one is optional. Register a name and look one up. The protocol is open, so anything that speaks it can join.
This registry was replaced on 15 November 2026. The new registry started empty: a name registered with the one before it has to be registered again.
What it is
A name every peer can trust
An origin identifier names who created and owns a set of instances, as the Antheos Level 1 specification defines it. It is a stable, globally-unique name. The registry is the single place those names are minted and resolved, so two parties that have never met can still agree on whose instances they are dealing with.
Stable names
Each identifier is minted once and never issued again, even after its holder retires it, so a reference you hold today still means the same thing tomorrow.
Held by a key
An identifier is held by the key that registered it. Only that key can relabel it, hand it to a new key, or retire it, and every change stays in its public history.
One root, whole ecology
A single registry serves every LangSyn surface, public and private alike — so there is one authoritative answer to “what is this identifier”, never a fork.
Use it
Register, resolve, verify
The registry is reachable straight from the browser for people and over a small JSON API for machines. Same records, two front doors.
Look up
Resolve an identifier to its record — its state, its label, the key that holds it, and its history. No account required to read.
Register
Mint a new identifier with a request signed by your key, which then holds it. Registration is a signed request to the machine API.
Machine API
Register and look up over JSON under /v1/: a registration is a signed POST /v1/oids, and a record answers at GET /v1/oids/<identifier>. A /health endpoint serves monitors.
The ecology
Part of LangSyn
The OID Registry is one of the public services LangSyn runs in the open. Its companion binds keys to these same identifiers.
LangSyn
An introduction to DKE, CTX and Antheos, the three projects LangSyn builds, with a link to each.
PKI Registry
The public key registry: it binds post-quantum public keys to these identifiers and lets anyone verify a signature or trace an endorsement.