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 0xc592c462d7a0c5509f2aa9fa4d9d6e60efce414513dc68d09022356f9ed30c68. 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/62b7a62b-67ca-4b5e-aa54-83ebe7a3ee0a.json and https://artists.proofprofile.net/proofs/artist/62b7a62b-67ca-4b5e-aa54-83ebe7a3ee0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x7c7a6f1b06b5a57e75d029f2f629d712205003dd90f9f00e4e470bf5a3be0c39. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZ22B1904077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838c2d5b60a9d918979ede9f9ffc7649733582c9f91e1c4be119df1ac0ecbf8b. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZ22B1904119.
Seagull (Original Motion Picture Soundtrack)
Jägerin (Original Motion Picture Soundtrack)
Shyne (Original Motion Picture Soundtrack)
Pull Over (Original Motion Picture Soundtrack)
Go Make Memories (Original Motion Picture Soundtrack)
Romeo und Julia (Original Audio Book Soundtrack)
The Day You Long For (Original Motion Picture Soundtrack)
Cyrano de Bergerac (Original Audio Book Soundtrack)
Stagnant (Original Motion Picture Soundtrack)
Die wahre Schönheit (Original Motion Picture Soundtrack)
Am Ende der Worte (Original Motion Picture Soundtrack)