§1Agent Card envelope
Defines the signed identity credential: signing key, fingerprint, Tenant binding, and issuance metadata. An Agent Card is the root of trust for every Inference.
Specification · CC-BY 4.0
Agent Trust Spec v1.0.
ATS v1.0 is Ainfera's open specification for verifiable Agent identity and signed Inference. It's the contract that makes an Audit Chain trustworthy without trusting Ainfera's servers.
[02]Spec sections
§2Inference signing
Every Inference request carries a signature produced by the Agent Card. The spec defines the canonical payload, the signing algorithm, and the verification procedure a Provider or Auditor follows.
§3AuditEvent format
A canonical, serializable event record with event_hash and previous_hash fields. The spec fixes the hashing algorithm so any party can recompute the chain.
§4Offline verification
The spec guarantees that an Audit Chain can be verified without contacting Ainfera — given the events and the Agent Card public key, verification is fully local.
§5Key rotation
Defines how an Agent Card's signing key is rotated without breaking the historical Audit Chain, using overlapping validity windows.