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 0x5ee266021532cb89d54098b230a5aa94ca6fc16aeb0fe8bb90a15ecf95bdf01d. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9adc3ec-48d7-4802-b6c4-9a93e0e29f91.json and https://artists.proofprofile.net/proofs/artist/d9adc3ec-48d7-4802-b6c4-9a93e0e29f91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Resistance 3 (Original Video Game Soundtrack)
Deutschland von oben (Original Soundtrack)
Deutschland von oben [Original Soundtrack] (feat. Neue Philharmonie Westfalen)
The Impossible Joy (Original Soundtrack)
L'arctique - 66.5 degrés nord (Original Score)
Die Arktis - 66,5 Grad Nord (Original Score)
The Arctic - 66.5 Degrees North (Original Score)
Das Riesending - 20.000 Meter unter der Erde (Original Score)
20.000 Meters Under the Earth - In Search of the Giant Cave's Mystery (Original Score)
Bark (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 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 0xacd7c76547fa34073b602c23eac5868d097cd9f13471007c1f43011daf54f9ab. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEXO52456758.