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 0x75cd10ba3fb502778cf4370a9c62d929d1bb0d9b41e7abbe1af97c5f4e7a2b7a. 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/d6f7e630-ae2e-4c61-909d-75c71409fb5c.json and https://artists.proofprofile.net/proofs/artist/d6f7e630-ae2e-4c61-909d-75c71409fb5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Meanwhile in Mamelodi (Original Soundtrack)
Charité 2 (Original Television Series 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 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 0x8d332c8a3f4a3f0768d2c67093dc927c6a2f3a10458f10fa0b51d8403e08461e. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/QZHN91965893.
System Crasher (Original Motion Picture Soundtrack)
Ohne diese Welt (Original Motion Picture Soundtrack) [feat. Natalie Sandtorv]
Space Dogs (Original Motion Picture Soundtrack)
A Mouthful of Air (Original Motion Picture Soundtrack)
For Jojo (Music from the Netflix Original Film)
Niemand bei den Kälbern (Original Score)
Krank Berlin: Staffel 1 (Soundtrack der Originalserie von Apple TV+)
No Hit Wonder (Original Motion Picture Soundtrack)