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 0x4bc557568978821c608730702baaabb3adc47fe7b3213dee33bf0093083c76a2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca7682fc-86c9-4174-ac56-ab239eb3d99e.json and https://artists.proofprofile.net/proofs/artist/ca7682fc-86c9-4174-ac56-ab239eb3d99e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Apologize an Acoustic Tribute to One Republic
Acoustic Rubber Soul: Songs of the Beatles
House of Wills, Songs of Willie Nelson Re-Imagined in the Style of Bob Wills
Strings Attached Plays the Beatles White Album
Strings Attached Plays The Beatles Sgt. Pepper
Speak to Me - Dark Side of the Moon Cover
Back to the Garden - A Tribute to Joni Mitchell
Pigs - Sheep - Pigs on the Run - Pink Floyd Cover
On the Run - Dark Side of the Moon Cover
The Great Gig in the Sky with Lisa Tingle - Single
Best of Dark Side of the Moon Live from St. David's
Dark Strings, Vol. 1: The Early Years of Strings Attached (Remastered)
Don't Stop Believing Violin Covers, Vol. 1
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 0x1a69d5188c889c779086da4d208710d1a8a81051a507e107bc2369f4352e3466. 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/QZAPG1751110.
Falling Slowly Violin Cover (Instrumental)
After the Gold Rush (Instrumental Version)
You are the Jury (Music from the Motion Picture)
He Was Where Officer? (Music from the Motion Picture)
Protocol 7 (Music from the Motion Picture)