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 0x25b75b721bce001e35484f445b637cf7d0fccd2d53cea19a88f20b86a6bde688. 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/b1112492-a282-4d02-9bc7-394dec78e0d2.json and https://artists.proofprofile.net/proofs/artist/b1112492-a282-4d02-9bc7-394dec78e0d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Holy Week and Church Music. Instrumental Music Collection
Puente, Río,Macarena,Triana (Sevillanas)