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 0x7a0d49d0ffb006de69218348555c8b3aac4f87fafa4f908004c4ec291be7ab79. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/431387c3-2042-4f31-a176-ca052a1b4964.json and https://artists.proofprofile.net/proofs/artist/431387c3-2042-4f31-a176-ca052a1b4964.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Furia de Balboa ft La Repandilla: Traigo Una Rosa / Son Cosas del Amor