Onix may refer to: ONIX (publishing protocol), XML metadata formats for book publishers Onix (Pokémon), a fictional species in the Pokémon franchise Chevrolet Onix, a subcompact car Onix, a synon
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bddf46a8df30e9ac405c4e3235721340267505c947327b6e56773ec1b23b5e. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c597970a-b56e-4b53-8708-ae0b0baf9360.json and https://artists.proofprofile.net/proofs/artist/c597970a-b56e-4b53-8708-ae0b0baf9360.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).