1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x02bbe7aaccb4430c8e0b12b0a2dad0aaf931dcdc39f92096b292ec280780d861. 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/6cd9334d-502c-4d0d-9ab8-ed242a58b160.json and https://artists.proofprofile.net/proofs/artist/6cd9334d-502c-4d0d-9ab8-ed242a58b160.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Place I'll Return to Someday (Final Fantasy IX)
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 → block OTSBitcoinBlock must exist at that height 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 0x1098a88db4a126ba6b1f300efc7fc3f04aa694cde0acec7f10b9cf87a29fea9f. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USE830904087.
The Place I'll Return To Someday - Final Fantasy IX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bea29475b4a8201d91e0fa506cd3ac7fa34798475323edd0da90ffe980f126. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:13:18Z), 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/USE830904094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149864008cea67078f562f11b7902a56ee3c3db3fa99807ea478f0cfd3258cea. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USE830904096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9bf70cabc7f9ac07bcba6630100863aed4de30f614b338d00841fc02b2b691. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USE830904097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162918025dffd4b3ab978e8a0a4a2130536b43deae6f1b14541e6aaf663cf72a. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/USE830904211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442f8347795cab28c736addfc09de06197777045e19670976cebc198abdc9723. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USE830908071.
Cooley's Reel / Congress Reel / Boys of Bluehill
Star Above The Garter / Monaghan's Jig / Water Under the Keel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a872630f53ef4563ff30b8e2404ee8135c301be5b43c633347c241e41f0cb96. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/USE830918278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cb1c516973b5432822841dffbf1025d7886bc26d2c63452bfc5b46021858bb. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USE830918283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0e15ed0aaad13125b6d2d93fb228ce91b453dcca274688cf42dafb40dbcc5b. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:11:13Z), 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/USE830918286.