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 0x31da3b56645626c4551c12d625fedda49cc3d3594a47aff23d24946046128900. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/402ab063-8afb-4273-864d-c05ed4c2e66e.json and https://artists.proofprofile.net/proofs/artist/402ab063-8afb-4273-864d-c05ed4c2e66e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kinsun’s Noises to Fall Asleep to 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 0xe29238d956276a199904f95293f5e266bc351955bc3d13e7ba6ddbb7061daf2b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/US23A1536580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1a2522167be136b21ab0b14040458c1ad8c8c798a67a3a5bb36e55338080ab. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US23A1553435.
Kinsun's Rain Sounds to Fall Asleep to Vol. 1
Kinsun's Ocean Sounds to Fall Asleep to Vol. 1
Kinsun's Songs to Fall Asleep to Vol. 1 (432 Hz)
Kinsun's Songs to Relax to Vol. 1 (432 Hz)
Kinsun's Noises to Fall Asleep to Vol. 1 (432 Hz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4cd33f048152d2ace7308826627396e968ebaac8ae42737e053b3596f0301e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/US23A1587927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa016dc28cad58d80f780c7bd165208d909f235198c1f5c624c0af6a61ffb911a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US23A1591621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fc6865cc13dd802d44c0a7be19f99f03362c6126ca871a4f0f370bb6de099b. 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/US23A1591948.