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 0xf84361217ce8bd73faef7d9880f2434d8b4864acef67e7c2b78b3f62aec8c7f9. 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/dfc99dc0-4272-4cee-b23a-0ec4b0e018e8.json and https://artists.proofprofile.net/proofs/artist/dfc99dc0-4272-4cee-b23a-0ec4b0e018e8.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 0x9196e344e2c493f9e4b55967445fb40d7cc02d6348e866f8036537c6dd97562e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBLFP1724338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a99e5bb5cfe288bd9f7b115040d6e4cfa688d24addee00a2c5684cfcb548a1d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBLFP1730673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f87b8c692709113dcbe2b493215f7085ffe37b5ce441a51785ddf84dddcbc19. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/GBLFP1730679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc82c268dded3ab0ed91c4a1c7f677beb4e75a1b162a738580e08a54e7cf15c9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBARL1801651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b15a16f8222c415b568a47f967d8512dc3f34d9bf5fa377f3493b6a60db91c. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GBARL1801744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0db70a69bc91315f592f30de87948ee71f1624d18a34dcfa53c99a2091060a. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZ93L1802385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76bbce2d9eed7b52ee38dcc5abab263fc288f938fb521ea2b3548d21e1a22140. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QM4TW2274073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375714e1f4bcfc69159985cec01a5b9c5f7337ab5f23931ba431b2b8abc74bd7. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QM6N22233238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5298afa4c1eb01a707bb7fa0f16c789c6daccf18ad90882500d85766412634da. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM6N22233233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf230f4e3b6a91fe405fe450e94a2b604d7dee8fb521a1fd631226d175c79e8a2. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QM6N22420363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5bab3f6afa78accd6e4b8d7451f6479183078cea8850c4e94c8ea04d90b468. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QM6N22487564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3071ae230c34e30632dd960a7b573544511e68b88beed65dad414561016efb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GMBA21491799.
Champion - Birmingham 2022 Commonwealth Games: Official Anthem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d807c6a68cf3d90d9fbaf539ac54dfde48850f40f8731d680866c3cd06009e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QM43A2201055.
Champion (Birmingham 2022 Commonwealth Games: Official Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d807c6a68cf3d90d9fbaf539ac54dfde48850f40f8731d680866c3cd06009e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM43A2201055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4307951843db50c47520cda01b8fb7b4ef22eb96dabcf8c1ed7d433c469fbcf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMDA62248076.
Phone Is Always In My Hand (feat. Dapz on the Map)
None Of Us Are Getting Out Of This Life Alive
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e1515c5ad9890545417611d827c4d2b6ac091cf9c9ce12b051fda242e78e7d. 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/GBUM72000980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3f3ec9f4335e58df4bfac36271969a15574f59128ab2e3862b7299218321b8. 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/GBEU71300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e1563e6b0d28a16612eb897446dc1ade3881c4689639e8ed35b04350dea703. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/GBEU71300038.