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 0x05643a51b509a4478373707438e07161061223c657714ad013d864aaedef82c7. 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/8c1a29e8-ab99-4ab0-b954-94fcef5f58c7.json and https://artists.proofprofile.net/proofs/artist/8c1a29e8-ab99-4ab0-b954-94fcef5f58c7.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 0x4f1e81fb629ff72ec78d7c2254fee8907e118c2767ecfa0016afd470e1dbf324. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/DEN060301038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46f69f7c5798f5bb304086e4ce2faec75fc6539da422d62da4d739761783923. 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/DEN060300973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8c9c85c7b57dae1943a3d8fbf6decd89f20e063d834102d66ce1c8e1c134a5. 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/DEN060301089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02cc5c874456183953de70de6feeae978270cdf673e81b1a1da681b5eda568a. 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/DEN060301090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcd996a50ef6d66917883d8c82d8f91f4e520e871f1665dff6d624fb1545bd8. 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/DEN060301092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2e2b6fa3adcbbaff8e86eca8f52ffd08f1cf4b292d0a63b9baf80739459035. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DEN060301091.
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
Jack To The Sound Of The Underground (D.O.N.S. Single Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf1915709e2ae6e9bc8758ab43a3292c73d7fb113907be667cbefc7bb34dd61. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEN060301131.
Ritmo Infernal - La Fiesta! (Single Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc488375d423f22d1338a94bbf48c29717845eb65f1f1b5e1dddb30f9ce4c40c9. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:33:09Z), 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/DEN069900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bc655aeffc14c488245f9228f2501192bebede707a91aa8bba81c5e86f3dee. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:00:39Z), 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/DEN060000153.
Pump Up The Jam (feat. Technotronic) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296900824f1f6a1827e9d98081392c86a9a69be0ddc08ec37a980e08cb6c3d10. 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/GBCEN0500110.
Pump Up The Jam (feat. Technotronic) - D.O.N.S Vs Kurd Maverick Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2f2172ed1c42fa2fd76a3a70c64663468c8a4a5e5c32d4c0f97bf488e5bdd3. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/GBCEN0500115.
Pump Up the Jam (feat. Technotronic) - Gians Crowd Is Jumpin' Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff9db57cb437fe3d4a3207cc6b62efee1335870889677ab3e3c5e8245c02596. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEN060500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc095d652d9efab220a55b425b64ed3c40a7811f742a738abacc007e540125c6. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/DEN060700457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acd632acc126559c2cef593c8dfa121e5927927718b7ede8db7ec1db34c909a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DEN060601241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261fa20e0ca3d23a905b016cd72ce1d693368059e7fbf41274ab207c3a054b62. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEBL60723789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6349c3d7eb6263be55da2f332267b2894b691ea808a1cdb4eb1c8c5e8f76940e. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/DEH740800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93da013aa3ef466232ae28533918280214d0e48ad46a77294a437e270f2f7171. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/DEX790800048.
The Nighttrain (DJ Bilel Gargouri & DJ Ilyes Remix) [Remixes Part 3]
It's a Fine Day 2010 (Sorrentino&Zara Present Miss Jane)
Pump up the Jam 2005 (feat. Technotronic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3712d1714ae05320141ecc81da675904cac4bd287d99bc0d09b61317eea33770. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEN060500054.
Rollin' Deep (feat. Seany B) [The Remixes]
Searching for Love (feat. Philippe Heithier)
Sky Is the Limit (feat. Philippe Heithier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cd7de15c8a64dc8f3e31b4a776dd03da30aed9b1e15b744a6453eac80a1b26. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:23:53Z), 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/DEL711910283.
Strictly Rhythms, Vol. 1 (Mixed by Aaron Ross)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b609503e16f0793c014bc319aa44c54df9cd732c177f64325ae304ce0ac9ea. 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/GBDVG0866106.
The Nighttrain - D.o.n.s. Meets Dbn in On Board Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea9d63e0dc2ef71c78d1a5d0be5c5cd8ba547c1dac6b542a24bb71c13302d73. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DELM40800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc812ba2a3c84185993fa59196a63e18e098c510c459d57f24b95ea63a69525e5. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBKQU1418487.