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 0x8b901303d954a4f1ed1cf2368969b44266f429d7118605c41c33731780f9120f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46ad03ad-3af9-4108-ab33-c21579184c65.json and https://artists.proofprofile.net/proofs/artist/46ad03ad-3af9-4108-ab33-c21579184c65.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 0x9547e238c18f7240b4d4e8e17fb79ea8f1a2da60de88da56db74f4d029f800b6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USLZJ1687453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa559ea3a432f85f3c1582927d99850d9d87b28e89181a6524e49184b18f4c553. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZ5FN1801181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912ff0148f3b51976cb60f18c3f4c4c15ceae6a1fbdaa21e2821a19f56f44f15. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM42K2095792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a29d0232b84c0ae58003ccd0ea48ed799b339b60b8f3a680b91fdca4044dcdc. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QM42K2038591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a6cfbbf57c579b96e457b83a036ef5bbe65732a9a83197bd95d7a3f1ca1519. 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/QM42K2010994.
Psychedelic trip to neptune ( 2018 remix )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ef5fd2a6876baed0c6fd97ca91c991c8f601449214676d9fd921d10fd02cae. 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/QZ5FN1804513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8315e34b353f37c1284704f47c2efb79613deb466ffee61e9818c960caaa95de. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZ5FN1804522.
Alice in Wonderland - FM.GO & Bonne (BR) Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5597f764f865a6a5fc01afeb09a17a942f387dc335074eb90351b4b6eda82fb. 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/GBKQU2433539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca7f03d3b5943cf7a9b84939db9920e22c538403f0d9e474b5b38bdd7442eea. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:18Z), 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/GBKQU2439411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d9569ee4a4f774b62c12f3433f3270652b9585ef74ae1455b5803035dcd12e. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:52:51Z), 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/CBF8B2450690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef8da329e52c91b3c0e92825f8216fe112c91804e7d203dff846e9788e5a07a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CBEYJ2539726.