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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ee64bc26e840353c58206d3a91820c521f0e4bcf6a4277564e8f972e59891c. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f9e1985-5ee0-450f-a78e-4ac34fc04957.json and https://artists.proofprofile.net/proofs/artist/2f9e1985-5ee0-450f-a78e-4ac34fc04957.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ami, una Misión en La Tierra (Banda Sonora Original)
Kalewtún, navegando por los Mitos del Sur (Banda Sonora Original)
El Amor de María (Banda Sonora Original)
El Mago de Oz (Banda Sonora Original de la Obra Teatral)