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 0x4fd61312b5b8ee2c885d1ade9e0cec41663d5dbbd679a39ec11f7aaf317d5243. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85ed0e46-4a5d-4f2d-ac57-e8d07dfb7a89.json and https://artists.proofprofile.net/proofs/artist/85ed0e46-4a5d-4f2d-ac57-e8d07dfb7a89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Caballero Del Sombrero (Versión Acústica)
El Caballero Del Sombrero - Versión Acústica