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 0xb0b6889771702ee84cd3f65a18c113508cbff06be2721235371ab56a0a08a1af. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/deb6a75b-fa7b-4791-b78f-f912e8bea473.json and https://artists.proofprofile.net/proofs/artist/deb6a75b-fa7b-4791-b78f-f912e8bea473.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beethoven: Bagatelle in A Minor, WoO 59 "Für Elise"
Left Behind (Tribute to Ryuichi Sakamoto)
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 0x044e45c235c72ffcb7579856c402f569e9e7effca9c9eb874d2a245946ff1f11. 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/KSA012309711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4079edf957d28b72ea977a57cabcaf6c6b5ba2b52efe8d0bb8082d21bd05ad61. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KSA012309715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797b5332e4c32248f06d203721942f8cd3af30c15baab9e5be5e3e07ff50b2d4. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:00:10Z), 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/KSA012309717.
Justkass Beneficial Ownership Information
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d1fbddb64e03d04bf5590688a4e89cfad41cc52021bc50e9f442600c7cf69b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KSA012403649.