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 0x061d6d3752a400038d70ce68419bf4079dd5c24a19ae7cdc785206cf7c28c1e6. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc743b9c-c4bc-4090-8738-d0acd10ed43b.json and https://artists.proofprofile.net/proofs/artist/bc743b9c-c4bc-4090-8738-d0acd10ed43b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Archivo RCA : Enrique Francini - Armando Pontier Vol.2
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Archivo RCA : Enrique Francini - Armando Pontier Vol.3
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Archivo RCA : Enrique Francini - Armando Pontier Vol.5
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