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 0x8c338beba5a7f0525d29d2432ee8eaceae34bbe615d58cbfc5afa0c41e7761b4. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4933749-3d69-42eb-b3fe-23571bd0ea9b.json and https://artists.proofprofile.net/proofs/artist/d4933749-3d69-42eb-b3fe-23571bd0ea9b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Don't Need You - Holter & Mogyoro Remix
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 0x0db902b6db63eb98e2d74a97587cd7a86604d1bd9a0de8139959f2cd55572301. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEW871608251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4f17fe6811739d558c10f17570bf4ac2b56c21e2e051044ada24709d31d6d8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ITSV21700186.
Defected In The House Radio Show Episode 041 (hosted by Sam Divine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdede304bd8193a1aa238c5268b24b906991fa53646fa8f8e7f8603e9cc2e7b27. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBCPZ1710833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b644ccd5228006c88f46e5d9898806aaf1aa0cc96b7c870532e18b59730226f. 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/GBCPZ1710834.
Wanna Give It Up (with Linda Clifford) [Légo's Dub] - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a19e6369da4bf4bc44f19581c10efa774c5d8c4c2f4e9654280f6b18a256011. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBCPZ1710835.
Lights Down (Franky Rizardo Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c8180b61d57ec15fe5455af5f585e6a50135616a0c310f177b4f712800a37b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBCPZ1710837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4623dcf0bea4ed5ad1da28e39295a6d330c8ca99d29c3a008dbf1ed7064d4d03. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ITKG01900118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296e19fd6ee373e0630257f1870a101ac0537b8e8fb395b9c02b5e6ba55cdb83. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/ITKG01900119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf980df2f20730309319123cbbe80d17d013865dcf2362e96496ee6eabb7144. 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/ITKG01900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac900a4d9969d56d55b5643a128fd921d101511c3671bcc7a0f8792d60e716e6. 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/ITKG01900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fee566943dbff5335af8c5a38fef8e2a04d66a90b5801d85a0e7eaba7cb1eb. 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/DEW871603114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbc4e3efac7ddf8e960dd041e025c77a5448fe0cfb2c653d4957f12d11ce94b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEW871704557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad3d3be2423cfb659e85852bea9f3b849aff0d203e7456f2a503b883f9091bd. 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/DEW871704539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb4b09f687bca262d0b05ea74e8de9a3ae179bdcdab663e50162ffd74be0068. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ES8831570701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f890ac86fda045300ce2e1d3fe504c42ab42bd987f888ca52f890432d36f74. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES8831570704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970534211e6b605b4f82b352c0b02475e0ff61276f44b6f6ab70f42b142f97c3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ES8831410901.
Defected In The House Radio Show Episode 040 (hosted by Sonny Fodera)
Defected In The House Radio Show Episode 038 (hosted by Sam Divine) [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118b8a5e31192c0667a7f64c0430141b563a2b61fee15dfe63c7deaf16f4007e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITSV21700151.
Chris Gekä Presents There is Soul in My House, Vol. 35
Billie Jean - DJ Fudge & Danny Marquez Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec470aec54612b07c57985165699e1617bace07728453eaeab630611adc73a6. 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/CH8081000264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3f4cb15c6ade92a7e0e56542192295af8a125a93c80d60e606091c5821623c. 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/CH8081000504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa5113ce358bc8ab2dffa6801c87776ba7c3156c88aa4bd6c97c14deef03d5c. 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/ES8831720901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a1cc6e81a43e8da84e9f29f494de84a152280608c558faa44721947eddc52a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/ES8831720902.
In The Mix Vol. 001 - Compiled By Etienne Ozborne & Martin Villeneuve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842e87b1f938824628d6226b84023d286b8b1ad53ba25e37095cdc1d774dc081. 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/GBBL71400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2853d3ade6ac297361718e8747619f207219c0507e301dcd3542b9be1cf1d4. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ITFA61200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8959193c901f22b17f9125d37ab82da58c58a77ab95d1769f1443cc978fd9cf7. 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/GBBL71500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f489d20e077cc48c952123d90a5eafb0c0770862ffc4af3c8ec63c72dd1d75. 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/GBBL71500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfd4251bfe9d00633b07c146b6679e8554d4952a7c827484d4f72f08799650a. 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/BGA691800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0874b892393635e10980db4b89e81ca480311058dbdd1cf68f0bd7425fa5173. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEW871704969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6bed510cb42fce87c0d3efec9c9fcee883b774307bcc19ef20c057295b83f0. 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/GBKQU1911547.