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 0x9fe80d363b5f96bd9d09006c83749d03afe36d4f1a982a37bad6608066f6ef52. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/318c2162-1cc8-48fa-94a7-d3b231d33e19.json and https://artists.proofprofile.net/proofs/artist/318c2162-1cc8-48fa-94a7-d3b231d33e19.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Two Hearts Together - Absoulte Contrast Remix
Acid Jazz Classics, Vol. 2 (The Finest Club Jazz Tracks from the 90's Till Now)
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 0xe1b0d8a9233ba47340e9327e21b3290dd5e4f68d418275adca2e5a4a287ec5ad. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITI029200086.
Acid Jazz Instrumentals (Jazz Funk Breaks and Instrumental Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b0d8a9233ba47340e9327e21b3290dd5e4f68d418275adca2e5a4a287ec5ad. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITI029200086.
Acid Jazz & Soul : 20 Jazzy Tracks With a Touch of Soul for the Nightlife