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 0x6982108e9219594115af2d3c284fe1b2f1308b90bf785d813803a33fb9da145c. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6d853d0-c1fa-43ed-bd17-b86518797b12.json and https://artists.proofprofile.net/proofs/artist/b6d853d0-c1fa-43ed-bd17-b86518797b12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All About That Bass (Acoustic Guitar Version)
Everything I Didn't Say (Acoustic Guitar Version)
Burnin' It Down (Acoustic Guitar Version)
Drunk on a Plane (Acoustic Guitar Version)
Happy Little Pill (Acoustic Guitar Version)
It Was Always You (Acoustic Guitar Version)
Roller Coaster (Acoustic Guitar Version)
All I Need Is You (Acoustic Guitar Version)
Every Other Freckle (Acoustic Guitar Version)
Guts Over Fear (Acoustic Guitar Version)
Take Me to Church - Acoustic Guitar Version
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 0x5812d0a6cbfee415f37abd6a6715dc6a45620992645d116e39639e78fa7dc712. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR2X41419389.