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 0x445650eb363a44e94586de9f4f3ba4a51f0afca38b34129bec71961c83e6072e. 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/5d405895-7bcf-455c-823b-f9e11a0b8412.json and https://artists.proofprofile.net/proofs/artist/5d405895-7bcf-455c-823b-f9e11a0b8412.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
L'Orchestra Italiana - Italia Canta Vol. 11
L'Orchestra Italiana - Only Music Peppino di Capri Vol. 3
L'Orchestra Italiana - Only Music Peppino di Capri Vol. 2
Italian Sound Tribute of Genny Day Vol. 1
Italian Sound Tribute of Genny Day Vol. 2
Canta Italia Vol. 20 - basi musicali folk
Italian compilation - l'eleganza degli anni 70 e 80
Basi musicali: Le basi musicali dei successi di Michael Bublé
Basi musicali: Le basi musicali dei successi di Michael Jackson
Esperanza D'Escobar, Italian Special, vol. 2
Lo swing di Genny Day - Italian Revival Special
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadb09f7f23d5a6e9803eb2b289e272babd99c4e1baa12694350837678611dbc. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX451528519.