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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82032992062bb20ef360d215091efbc57f0b45fc313a2484c9928bec6d1c40d1. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cd414d9-4c12-4349-a961-919e235f95d2.json and https://artists.proofprofile.net/proofs/artist/1cd414d9-4c12-4349-a961-919e235f95d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soldati e capelloni (Original Motion Picture Soundtrack)
La vera storia di Frank Mannata (Original Motion Picture Soundtrack)
Riti, magie nere e segrete orge nel trecento (Original Motion Picture Soundtrack)
Rivelazioni Di Uno Psichiatra Sul Mondo Perverso Del Sesso
Riti, magie nere e segrete orge nel Trecento (The Reincarnation Of Isabel)
Vintage Italian Soundtracks: Spaghetti Western
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa377b1a00246a189722f45e138f7d65a8743d3c9748ee23bd0491cdf14758cc1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITF730701345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4025e45d48fb73900c694839f07f5f9f5c837ea92eef04391fa093958fcc9a2e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITF730701328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242862193ba8f585c390ecd98fd7b8c0af336d334bf0f8cf67ba7eb02bb19f0a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCTV9901005.
Vintage Italian Soundtracks: Crime & Jazz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c32fe505511c6bc2ce343e07675045b755d92ff1291332ce21837c1317907c. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ITF730701467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3cb3d96ae036c13b72c6f47ce4f492b3a3e5af1d9ce7d8dd69624a6cd064f9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITF730701487.