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 0x51bb3bddf7dec5823e9656a4e56e4c335d5abd8fbe8e5f2c7de93ee26bce5f8d. 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/136a185a-ab16-4cf6-950c-8740f856a6db.json and https://artists.proofprofile.net/proofs/artist/136a185a-ab16-4cf6-950c-8740f856a6db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music Is Everything (Pola & Bryson Remix)
Music Is Everything - Pola & Bryson Remix
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 0x54718812e46f10e118cd8faaff9bda621bfa9680593dbb804700748bc41f73fa. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX5HV2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018d68ffd08e1f186510869173ad133b8c611406f5b0469947f88eee0eacc566. 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/GBCJY0241007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a13d5b9bc81d840bdb63aefb48d3d396491409403bfa99b3c9799f5437f4a6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBUM72301972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cd125ce51c0d57cb7620c2228d105c30c04b1834e30619016e4f08b6d1ec4c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB5KW2102871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02dad0c31ccbdbe79c8b36bf71ef6d0dafb4d77aeb20821f27663c75a11ca86a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCJY1900055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76770d6363886522d4379f207a9cadcb7e6414a8610a32f71bae29fde73a8ba5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBPWR1900119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c51579a0276047c5642a5fbba6b0d5ebc42b85d6496039e50ab0dbdb06f947. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBCJY1700050.
Cinematic Fireball - Tom Middleton, Jody Wisternoff & James Grant Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83781374b7bfc23ca5c675d37aa3805354d5ec62f59a08e6fb987300fa30f977. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBEWA1702683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6450437386a5b051452ba553057411344b2239da26fe37af4466e8239deebddd. 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/GBARL2201686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd15151e7c80479c29c093031a0df9a2786bb736e62b6f3fb4ac39f7a0b26fc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBUM72307875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a13d5b9bc81d840bdb63aefb48d3d396491409403bfa99b3c9799f5437f4a6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM72301972.
Just Hold On - Sub Focus & Wilkinson vs. Pola & Bryson Remix
Just Hold On (Sub Focus & Wilkinson vs. Pola & Bryson Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77366467b80076e8c887ce30fbb6aadbe9d190067e09962c275bc5af00dc6b54. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBUM72002179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cce28c8d53193755f6d80def0a9d3a1665faa45d6e8162879cef31641ce272b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GB5KW2200603.
True Colours (20th Anniversary Edition + Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54718812e46f10e118cd8faaff9bda621bfa9680593dbb804700748bc41f73fa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GX5HV2200009.
Turn Up (The Music) - Pola & Bryson Remix
Turn Up (The Music) [Pola & Bryson Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fda6d98284b16de92913799aa93d3f58c3e0d72c92c23d9153b58cb0af95f5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCJY2000334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932c24a1e907f5009835fb8bf45ad5044a31c3b258e759595bea0a2547554992. 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/GBPWR2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf925fd608e4edfeafcd20af6cb443874ff0c6d642de33b0ac9fb32d0dab44118. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCJY2000288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6c1eadc76f70c9723538e65f965bfe310201b59bbd8db0ea28bbef43d0cb5d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GB5KW2104631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd42efff66e43a2496a3368d18b7cbb9b3376f4ada22f836800e0be259f0c1. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBUM72101280.
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 0x0e6d919b32098b8932235c3cfea1acadce7f290d5f130bf5959627880c8d99fd. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/NLCK42216501.