thumb|Novo in 1971 Salvador Novo López (July 30, 1904 – January 13, 1974) was a Mexican writer, poet, playwright, translator, television presenter, entrepreneur, and the official chronicler of Mexico
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 0x1214fb282b8e3fe04a7a65423b2bef0c01b34ed02470de12ba98e78572281169. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dc939c3-72ea-43f5-b5b1-1f95cfa1ac17.json and https://artists.proofprofile.net/proofs/artist/5dc939c3-72ea-43f5-b5b1-1f95cfa1ac17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Salvador Novo, Narra la Leyenda de Quetzalcóatl