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 0x65f0e60ea418425ac0448a09712c2f8ecee1b9e50f0aeb684de69e8f9a4bb9e9. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44ae9411-4db1-418d-935c-b8e4564d2ac4.json and https://artists.proofprofile.net/proofs/artist/44ae9411-4db1-418d-935c-b8e4564d2ac4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Modified BMW M4 F82 Coupe Invasion in Koln Exhaust Sounds
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 0x7987849ebb1eb18007425067bc44154bdfd5ec4a963fc5e4fb7451f3d517d63a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZP7F2252776.
BMW M5 F90 Startup Turbo Whistle Sound Revs - Pops and Bangs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fb0438f44a8b586b3863264f9c93b34abe8ddbcc681d4581ffd2b401b9b24c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZP7F2252778.
BMW M4 F82 Fi Exhaust - Loud Revs, Accelerations Pop and Bangs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee14986841907041a84201639c0c6a7d23a5995f472fe3cde068c5e39c0fcc6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZP7F2252783.
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