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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e267c9343748758b52637f57900dcd58aa9a1739f6b3125c351d8fd109c6d7. 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/51da18ac-d995-451c-bce6-f327e2b62f93.json and https://artists.proofprofile.net/proofs/artist/51da18ac-d995-451c-bce6-f327e2b62f93.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1168a7d7a63d9507e2fbda3c3d35bc6db2612a2eea5b5e69397f4d10ffa04e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GB52E1576701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b7364baca3b72678daaab0d9f53009f2aab5259c92ba8ff216b0b18ac779aa. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/GB52E1651901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36dc8110391e01fa5f29578254192ac38dd1e1d75dc999b7589c2ef5649c83e. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/GBLFP1666647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d34ec6a0a58db729b51e5c92b33ec5bb5457c8e7ee8ce87c96324dfec0bb47c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBLFP1666656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc604b4f2a61efddc97a253c0e56c29169a7baaed73fa4c1bbd6ee6a44c0b74. 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/GBLFP1666657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafaf256e7fcaf8d870d5210543b76ffd79c5be0fd9909b6009dc7fcf977c5d1. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBLFP1666658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32edc412ebc5a6ba8a4a219e95e04ceb705e5498814543142093c4a95cefb0e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/GBLFP1666648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a18b803af0da6a32294d3a715c9133c97ce8a1be870dac2bf9b8972f617f205. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/GBLFP1712032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a297e90a01e69d743d2fcc75a743bacdef6297d4b4ae9f85c88e942cd57665c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBLFP1720749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffd5ad9a52fb146bad06d77dc79cf14e26833124c4edd1c05e1c93290667812. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/GBMA21812931.
Hills of Connemara (Remixed by DJ Crave O)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb03302110790924aeb5cfc4788e754ee3dc5ab45123eede26d837380a5b8525. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/GBMA21908774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3482a707d445389ba0f1f7beb761f8ecd182adaacdd8e7b21dd5a3a8f78da33f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBMA22089972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f716f6232a64a1cd2fae8b74f8fe97b5cd1ea40c235f8b0c5a110f93f3aa8aa. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/GBMA22089925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0f0e0999f05fd36a51abb9572cb75436afe36fd302e09847d26ca5741d71c8. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/GBMA22089941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6501745e690f8b84cdb3adfb1d196bb404a204fb89434bf5b0cfc79d3b3d131. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/UKXN22137225.