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 0x2acca718b066374d57f5504cd680614f1d4e2d4bcf8bd3c3f34765938928db62. 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/e5ca7f78-45f0-42bb-aeca-c3caf308fb1f.json and https://artists.proofprofile.net/proofs/artist/e5ca7f78-45f0-42bb-aeca-c3caf308fb1f.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 0xb02335b17deaded030a0a807974282ce5ecbdc29d621e46571b4998d659e1e15. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZFYX1911974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3619cf2b54f7cd8a9b46532a862225187956bdb5dfe8bb9142c9325e10d168. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:26:44Z), 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/QZFYX1911978.
Niam Tus Ntxhais Zoo (Mommy's Good Daughter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fb8a13f60dea2b9e548b00f3242c257dd6912ad60c2cd3f88ad4051e909f50. 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/QZES62073698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1878ff89487e98dda15398fc8c2b059b8759ca66110adb229240e03774ed9e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZFZ31992842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ba4d79c3d734247dfbe9b50f4955b293b12c3ed3dfe7948de98798bdc37785. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:09:29Z), 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/QZFZ41961658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b6cfe4eb58a9eae99a95c96c1c0edb58f6f5b8f2a9c68073d3fa1f3d0e3c28. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWR2056356.
Tsis Txhawj Yog Nej Pom Zoo (Not Looking for Approval)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092ba0945b402e2eb836ae9af94998381c447fc832cb6cafffefb6da90d5d572. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:59:28Z), 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/QZK6K2289919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9fa811ccdc240b689a9294b3002a3361708a67a6a0139f015e70c58b192bca. 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/QZHN92285976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a03344d1ec1132338b38ce34978a7dbf73d4b3d242ea18d831b1f61d1a9314f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:21:52Z), 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/QZES72274243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb52282fa4c48d12eed9a6da707fd9f7fcd8fe20f93eb9343ff1431027ec5a6. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZHN62236274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43771b3983cdb05c90604394edef60541b7ddf2fb725ee9b7c0e144618ecaf8. 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/QZMER2265070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42184496c37071e85fbdb752fd6a0ff7a898a1669c66d47b05963e13fc7122c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:25:55Z), 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/QZPLR2226433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d692f182af527d8ef908cf81f1de973d73ec8c7466b72ca91abb1915a0d9157. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:56:37Z), 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/QZRP42286128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90cdf2231e002cc4949773fe9970359e5d3a03f04283f93e9826cf9e4deb923. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:24Z), 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/QZFZ72320416.
i'm gonna thank myself later for leaving you
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72abaf7927de4e1b97ce2c6d58ecee401a2006406cc3d12de7c81b32efdf96c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZHNB2311399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1fa779606fec30367dc4eabaf684240bc9065af41e4425e502a6a40406f136e. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZK6L2341077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb457accc366cd40c0c08e632018b5d9e13a6e409fbffcd45005d13a54a3b3b78. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:55:53Z), 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/QZTB72392588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a7a05b34273d197b212979f8db1438797516b25aedaf526484b5e70c31c4ef. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA62426300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07475188c0740c9b918604a76100d0801389efa612a0358440c3741093ca6d73. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNWV2412854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9912aaf3016362e3b816e88e0bff2c60b98f9e92aab56e7a1194defce6f3bcaa. 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/QZNWV2412858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7850daaffca8babed10ccc27879689fb42d45c70c444d42950da3341d4a8b6bd. 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/QZTAS2461412.