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 0xb35b80740aa018f48681d89cf66641b8997c8ace2d445d8f3596b7af03eb9723. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6cf28697-77ca-429a-9984-72c4c0727482.json and https://artists.proofprofile.net/proofs/artist/6cf28697-77ca-429a-9984-72c4c0727482.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hot Up The Barrell (feat. Mineral Boss, Burning Kry, Nigma) - Single
Nuh Regular Touch (Radio Edit) [feat. Shauna Chyn]
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 0x3c169f18fb26490f2293e8976e073285619d09911c6a4aa4083ada37333d0eca. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX201720089.
Clean and Come Out (Remix) [Feat. Jah Fabio] - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaccbb97b8f680b2bac2f43c82f2866f19756e5f2b342bddaf0d0f69016b96a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:35:09Z), 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/TCADU1868958.
Real Things feat. Skepta, Frisco, Chronik, Tempa T & Esco - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03a0d0318ae084560ef0453c8d2fda3827e0591ed58b0984e8bbf89e59d35bf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBP4E0800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15902e6f8b47e7e8b6bb0dfe17959dd01d0ebd325c41a864f9b289b7e71bf28b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB8KE1350557.
Living It Up (feat. Esco & Zawezo Del Patio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a0ab25fd63ff2fb32f1efa7bdb64866e22064ee982cf67392759a6f4bf0a94. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES5021300328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1383ee361727d703f0830a173b8f7ed271cf21526f10c1e605e4e9c8da05c0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITA490800018.
Go (feat. Esco, Cell Chapo, Money Reekk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f57315a2327ad4b3283828ad16c4b33887b6e043bb4788b81bf3eacf730a947. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CA5KR1838389.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch