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 0xc8d5482134f3e5e20185a2cef4f8bd9f11b7baa70ade3c8ee885d34544eaa99b. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b534d56-6b6d-4272-8f8a-2fab1f424faa.json and https://artists.proofprofile.net/proofs/artist/3b534d56-6b6d-4272-8f8a-2fab1f424faa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ah! Verranno A Te Sull' Aure I Miei Sospiri Ardenti
Puccini: Madama Butterfly (Gigli, Dal Monte) (1939)
La musica dei ricordi: antologia della canzone italiana