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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766c89dba9f2da965521a6977faedad04852c6ec49cdb0413103c67eb79ee9df. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad575d93-61e9-4b80-b647-2736a5af08c9.json and https://artists.proofprofile.net/proofs/artist/ad575d93-61e9-4b80-b647-2736a5af08c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Introduzione Ad Uno Stato Di Inebriante Distacco Dal Reale - intrumental
Festival di Sanremo - le canzoni più belle
Duets / Duets Forever - Tutti cantano Cristina
{"copyright_id":"0x323d68e5a9ac294c7f798c15a9e6a21814b7052370b3972ce6c6faf4b9d483f7","isrc":"ITQ001800631","name":"Batman (feat. Le Vibrazioni)","registered_at":"2026-06-18T13:41:19Z","spotify_id":"5f5lZknF1XcUvq1vvrSsTx","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323d68e5a9ac294c7f798c15a9e6a21814b7052370b3972ce6c6faf4b9d483f7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5f5lZknF1XcUvq1vvrSsTx.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5f5lZknF1XcUvq1vvrSsTx.