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 0xb40e80a78da1eb75a0db2ed55166711ff72ca2582c1f91553ddba1ff78cf31cd. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3b0c1b6-2e46-4218-abf1-7fb9b7f81374.json and https://artists.proofprofile.net/proofs/artist/d3b0c1b6-2e46-4218-abf1-7fb9b7f81374.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sohn meine Vaters - Family Practice (Original Motion Picture Soundtrack)
Aus Dem Schatten (Original Motion Picture Soundtrack)
Glow (Original Motion Picture Soundtrack)
Hors saison (Bande originale de la série)
The Neighbours From Upstairs / Die Nachbarn von oben (Original Motion Picture Soundtrack)
New Heights / Neumatt Season 1 (Original Series Soundtrack)
New Heights / Neumatt Season 2 (Original Series Soundtrack)
Die Beschatter, Chapter 1 (Original Motion Picture Soundtrack)
Die Beschatter, Chapter 2 (Original Motion Picture Soundtrack)
Die Beschatter, Chapter 3 (Original Motion Picture Soundtrack)
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 0x9767fa28eabf3e2de30011d6bf122e25e434790dd80ac23b9a423d324149e347. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AU3SE2502826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ed93f0f8d270bbb3c10332ee42bcacce466381986f4ff32e66313e088ac32e. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/AU3SE2501984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07f7a53e3edb37fe9b958b45c709bd7343d86ac34ef567a229cf8d6609e7543. 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/AU3SE2502391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec27cea37d2a129ff9d0c8051cafd8d244b212a4da44a94086cdcaf72a2564e3. 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/AU3SE2502827.