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 0x4abb5ae55cca96cbe7076d1277c7354c145d2503731c8ddec9e05d91a59dda89. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d07e4431-9798-4dc5-b133-2d1f9cda9994.json and https://artists.proofprofile.net/proofs/artist/d07e4431-9798-4dc5-b133-2d1f9cda9994.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xe9e538bb942b0c297dcaaca609e42fbcd5491ec1e9b82245043b73b2893851b7. 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/FRX872125059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb086d87f07aa523288992488023cb5d12cf4a79ffca2c1beb4b05921411dc361. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/FRX202238805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0804960e29190c34843ced1aeea56e6ebe5fe1fb540f9c07eb0c9b608a6ebf56. 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/FRX202238783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b8b37400ad3fe6406e65499d3e078c1fe34178193ce55919a66f9c9b1c14c4. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/FRX202238786.
BarryTiger Nursery Rhymes & Healthy Habits， Vol. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5126e297ab09ca1be7335742fb040799821b2dad98638316e0844cf403621d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX282256226.
BarryTiger Nursery Rhymes & Animal Party，Vol. 6
BarryTiger Nursery Rhymes & Super Vehicles, Vol. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0a59a089a66f7b9ad0c15e272c96ea88c081d6830166f27b0cd6e90ddf7c39. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:07:26Z), 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/FRX452223895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d445398b5c1814d7d3d447aba08f90556b6377a2e26fde0d5908c7c5bc8fcc1. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/FRX452223903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2bbab78f940f01d5d7a208b911ce4edc094fa2826eb8c0105f0b30cadb4467. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:19:32Z), 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/DGA0P2317759.
Merry Christmas Songs for Children, By BarryTiger