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 0xba5819d91f57afb11091feabb41047af1fdd958878ad309aa821d1b58ccfe000. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ca4a0e0-f19e-4f7c-98f7-1c7d9565683d.json and https://artists.proofprofile.net/proofs/artist/9ca4a0e0-f19e-4f7c-98f7-1c7d9565683d.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 0x5a159ae585d710606aef67b97b1f977f211ed91d51a07870d070f1473cf10c0f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:14:07Z), 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/UKA2G1301001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c765d864a9dd414b93a3470acb32df8a3ffa2fdab9e46fec6eb709c9d8def9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:06:32Z), 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/UKA2G1301003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e424633806dc66927e4ca3c48a4d25be4049f6938cb15f145f78f8e6b9fb1e. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:34:20Z), 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/UKA2G1301004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67453ea0f446285a41e257c979b410e51006656325e3f0f735cd00c9e17be228. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/UKA2G1401001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab135e5d60d3fa4d90ee161dbacd3c922458ac18f85bcfb84ec8bbe5fcd79ad. 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/NLTH61500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa412d091f6c2c8742b74a67498029cb2d646e7474a22eea059373204e3175e2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLTH61500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6de7018fc0f62b7928d114d65f01d7de9940116c03c687e1b9f04569a27efa. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/NLTH61500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e0567fe0c29c19391ae85f552bae244ffec44dceffa47c52792be5a98ff808. 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/NLTH61500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c709cad701f37ec7e4b1488053eebec72be21ffb4c65624cf5c416dbc44f974. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NLTH61900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe2e29a79951823cd4f3ce1f0c72b7073bbb244d3c732b234ac085050b595c0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLTH61900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0855f40e6bc34d86539e6b1bc004dc0f87fe440ebb45ce6ed47b178cfd0eb8cc. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:39:07Z), 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/NLTH61900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be846b36183c76b4914a3570e0912a33594d0641b663dfa3ca261163712d043. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:43:00Z), 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/GBJX32162102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257736546a8786e117ccce8bf30e3ab34a8e48654f287019f7ca4ed2b08d5d25. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBJX32162103.
Let's Play Fade Away (Part of Dekmantel Ten: A Decade of Dekmantel Festival)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ce574224cc5396372679cb1aceda049646f571843a69f7b3a3992b4685d8be. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/NLTH62400102.
The Sound of Love International #006 - Palms Trax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0579577d38db9b31b1515d0aeaf0b63a907310dd3d1db52a3627845dbf6eb72. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:24:30Z), 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/UKU932483168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4e03a1db6e2a92c606687d2dd50790f04e4da9b77c823213dfd112adf3e106. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UKU932483018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59187bc0f8e0fd2e891d7155cff1ce3e6e108dc21c2f7435dc09d377590cf182. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/UKU932483019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e93710991dc63f6a524f4e0d0147f5c9952ef4946542ae0415b0051c2d858b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:02:52Z), 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/UKU932483169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be222f214209fdbbc39c2a39bbb607f02a0cb4c0d2b0d1701f80bf18ad99ff6. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:48:56Z), 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/UKU932483021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2e186c37e8e46f7b79519d47b7cf9be294ea86caec17cf6f0a580b44a2afe1. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/UKU932483022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed49fc29feb7be07d64efc4a57801f7a3fad115d863ba3151d75a36ec03f0a2. 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/UKU932483024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00519c2cb84fd2d0e6e47c7a6822351775a2bd4ca27e2320363d125682f29d53. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/UKU932483025.
One Thousand Waves (Palms Trax & John Loveless Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13da6926e92b4c5deeec4fdfc588960597e0c8de69ddda5bf9e19e6f2eae74e. 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/GBTZZ2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3185e2f0e5ad4c3ae84e587313639dc2a1bf76d9e5e8c793ccc3c937172c258. 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/DEEC33500458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1a95500211777971328a301f529f7dda8af81ede669079999bd9a7a40124b5. 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/GBKPL2002262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b69ad28671252d722fc6c9625381b8f694d4e5e00f85bf236299a14fe89356. 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/UKA2G1301002.
Girlfriend (feat. Dâm-Funk) [Palms Trax Remix]
Girlfriend / Damn, dis-moi (feat. Dâm-Funk) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c181d3403b19a1ce71cebc34c7067bb80f3ba8ebf916d32f09c486eba48acc3. 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/FR6P11802560.
Damn, dis-moi (feat. Dâm-Funk) [Palms Trax Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1857ab02d642a63107b3325d1db5195b6833b9b58d68c80014b59bdaa41bc10. 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/FR6P11802600.
Dekmantel Ten: A Decade of Dekmantel Festival
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ce574224cc5396372679cb1aceda049646f571843a69f7b3a3992b4685d8be. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:39:17Z), 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/NLTH62400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40737ccef61b2dade1fc6f6ace12846a15ee66dc3ccf15c12957cca4c67b216e. 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/NLTH61700073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf755a571b140b257b5406a2b3c2ce96dbb8d074e908d7ca7a51595689d88968f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBEXH2500048.
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