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 0x3484a1b25846d2c610bc05508663731370c69103b4fcf8dfe1abc66fc8532916. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4949f0a-1dea-4a72-853f-22cfaa68dba5.json and https://artists.proofprofile.net/proofs/artist/a4949f0a-1dea-4a72-853f-22cfaa68dba5.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 0x842fc1d0a3b2566d134f74b0e4e07516f7a4043851cc94c86172a61eec8885f4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEPL91800436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825a1d2c002228decc4c9f8d561c82a4c13b1326b8b8af3fe44a74f4268902fb. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/DEPL91800434.
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 0x6abac2bbf070dffa257dd60a4091e582524564216e2c8f10da4e7322ddc72cab. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DECY51312361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981e2162f56c6119940c94332bb8f2a0e008ea3c6ce18082200a325aa58c928e. 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/DEU671301158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1498b42f4cab545e61bfd61d5ec01f11594ffeb3ebe44153d54a0b56cc6d2425. 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/DEU671301159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed8ddaad7df5619c48b1f0cfaf4b7b140094e0727f26eb1fce028cbc16f13ab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEU671301160.
The Light You Will See - Trentmoller's Deep Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536ceeb8a2972010399daf7a61ff714354e5af6a5d49b428a3d07a700d23cec2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEU671301161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b3765233624152ceb97db0770d014a8e76adebba111480b29a90779db851cf. 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/DEU671301162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfa3a40c797bf57a3e10367b962f4df9542e2ffc7ff48123543eaf6cbc5f92d. 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/DEU671301163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5beb3e46fd3566544124eebba46b783ee5f03d88b73f4703ff09b991903d0028. 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/DEU671301165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2cee860f5f1d6d31a081e0892642f78b0785c881f456ccdc40ac82cc0d081b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEU671301166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ac92979df83ee6b34278bd483e0726d86c5bec257183dd23aa6ba719643af9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEU671301167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7260b46c121fafcdf7e59f22e471f1629c3b3e46ce1b05250eefab3fb71195e6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEU671301168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13546e96eed86260044b6f736d168ed2c259ffa76bd58133bbc6590717c1e9d8. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEU671301170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a00c348a954f22a02f7e41047d0fea8e27a6717ab61a3a2b04477eb8f434e6. 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/DEKQ61010036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f430769b083dd10def2d742c394e83e01285a0fcfbabce4fa70e9577fb59af. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBL61144945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f49773a9d77697f8a2a3e30599b3346bec3633e5a3aec0f7b901dbb3110a66e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEKQ61030034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c96118484d6050ba112c7f2ee1f9dcbd343f708c71e0f4d2fbda4880f949d7. 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/DEBL61001825.
Addicted to House 10 (Presented by Harley & Muscle, Soulful Tracks for a New House Experience)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc2b2393dbcaa5cf7d5d77b331b7a1e92a15dd3c90776c03ce162bc458068b2. 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/NLL561102916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b0e101584f982b75eca8ea1846ba5e1761469f590aad0a4e51ca46808302be. 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/GB7FY0900134.
Various Artists - HDV002 (Original Version)