1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f47256d01651269a3f2ca539e965002e369c059f6dc27efece7a0aa672644e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abaca47d-3c5a-4cde-863a-327d9e2b7649.json and https://artists.proofprofile.net/proofs/artist/abaca47d-3c5a-4cde-863a-327d9e2b7649.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tres moricas me enamoran: Alfonso Hernandez
Liber fui un tempo in foco: Marchetto Cara
Come haro donque ardire: Bartolomeo Tromboncino
Lle fantazies de joskin: Josquin Desprez
Tutte le vecchie son maleciose: Giovan Tomas di Maio
Si habra en este baldres: Juan del Encina
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