Glossary

Terms used across AffixIO docs.

Definitions for cryptography, SDK behaviour, and verification flows. Structured for human readers and machine citation.

AffixIO Light

Millisecond HMAC proof model in affixio. Not a SNARK. AffixIO post-quantum attests the digest on sync.

Barretenberg

Proving backend (@aztec/bb.js) used for UltraHonk proofs in affixio.

Binary verify

API flow returning eligible true or false for a circuit and identifier.

Circuit

Named verification policy template (age, KYC, consent, etc.) in the AffixIO catalogue.

Claim hash

Digest of eligibility inputs evaluated locally before prove and sync.

data_retained

Verify response field; null under default configuration.

Hub

Operator console at hub.affix-io.com for API keys and usage.

ML-DSA-65

Post-quantum signature algorithm (NIST FIPS 204) for production attestation.

Merkle audit

SHA-256 sorted-pair tree anchoring verification digests with public root.

Noir

Domain-specific language for zero-knowledge circuits used by the enterprise SDK.

UltraHonk

ZK proving system used locally by affixio before sync.

Glossary questions

Short answers tied to AffixIO product language.

What is ML-DSA-65?

ML-DSA-65 is a module-lattice digital signature algorithm standardised in NIST FIPS 204. AffixIO uses it for production attestation on verify payloads.

What is UltraHonk?

UltraHonk is the Barretenberg proving backend used by affixio to generate zero-knowledge proofs over Noir circuits on the customer host.

What is a claim hash?

A digest representing eligibility inputs evaluated on your host. AffixIO verification works from claim hashes and circuit context rather than raw credential copies.

What does data_retained mean?

A response field on verify paths. Under default AffixIO configuration it stays null, indicating personal data is not retained from the verification request.

Free proof allocations

Agents get 150 free proofs. Humans get 100. No card required.

AI agents receive 150 free AffixIO SDK proofs on BoundProof Agent provision. Eligible new Hub account holders (humans) can claim one allocation of 100 free SDK proofs to test AffixIO verification, agentic payment checks, transaction intent proof and signed yes, no or review outcomes.

Terms: one allocation per account holder, per person or business owner. No card is required. Proofs expire after 30 days. Duplicate, shared, automated or abusive signups may be refused or removed. Agents: /boundproof/agent/. Humans: Hub onboarding with offer params.

See free proofs split