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 0x9a96fadd84daacd5136b5578aaf767e57f26ccd831a5fe213ec84f4d1ab83ba0. 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/6283ae51-3fd6-4c15-874b-7398994912da.json and https://artists.proofprofile.net/proofs/artist/6283ae51-3fd6-4c15-874b-7398994912da.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 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 0xbef8554c64a2ac659ca4d86c0f394c3dcbac86b7ea94b450539f7d5e22276712. 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/UKEWB1600353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab19299aedf62feff214e1e20924c8168254fb9e868255e60cde24ed9bc228a. 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/GBCJY2200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e48aa13573dd20b39f8706b0f54d085af280b48b1a6325960beaedcc1b61aee. 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/NLCK41056125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c802f92e1f1217313fd68dd7edd7e5a921f23e9c5509217915d557aaee3abe0. 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/GBPWR2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0e512128a29a953f71016cc09259fb483272ec1c8b6704ddba294907375256. 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/GBPWR2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639850b65b0dab908359628f09cd4313ad6694964aa971bab671fcf98e5c850f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBPWR2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85b35485ca4261f6cd9d754ad40f1baa0ae395e7969a7328490d0c323949a70. 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/GBPWR2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eb9568d245ef81d4164e5d2d5fe21a9cebcfdac7ee11ee8ea6833bc5ed2322. 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/GBPWR1900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15aec6431f3f9e1c40645d6616dfd41fefbeb24d67a60e8154b7227c97ae8846. 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/GBPWR2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbad69fd2ef65adff7c22412d7b8812111c52e209d57f8162a12d5e4a5fb14a8. 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/GBPWR2000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b400a26bfb847ab3e29d7eea3c03882e8202d029c6f8ef079510eb00483f63. 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/GBPWR2400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e1b6f5817c03a396597f4faa9db56396a97cecbbe11046a27753a8742212c8. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBPWR2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f09e4274a0ce4eed9ca50dc3827d1dbcd9c457324510d28f6e84464dc189a1a. 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/GBPWR2300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0296bdb304cc8a6c274999baffc6453b47ed8c2cb943fea9974db9c997b34ce1. 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/GBPWR2300095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26288a7a36c3d77a268149bdbf05443dcc8c34824e7f346bc92caf1304c3f04b. 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/GBPWR2300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e5967f52fcb51c9fe635f6dda60111fa2d9d62da5f8f648bb3e98ead0dbfb7. 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/GBPWR2300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc73f5f9883f763f212adf40386687113e6b2c96998308711cd0a2d363316f70. 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/GBPWR2200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea493776663ef6ca366f180b5e9d3f9ffa8158e9fedd8b619d77bb70ce43be9a. 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/GBPWR2100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f66f979c4de367df887d9ebe222649c35cf37fa6e6c4d1ae62c203507fc858. 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/GBPWR2100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cb628c34eae444b4e46c53c4645f408e8002baad586459b9cdad861a425fde. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBPWR2000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eb9568d245ef81d4164e5d2d5fe21a9cebcfdac7ee11ee8ea6833bc5ed2322. 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/GBPWR1900079.
Before the Dawn (feat. Julia Marks) [GLXY Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b27696c38a4b608df4ab5f2a1fe79e94c4e74466b8d66304a558a5f0daa9a40. 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/USA2P1896927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd081f150f1a486dea13e55fdbd37e72c3bf100f907cdc788d5d9bc39f5231aa. 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/GBPWR1600685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cc47bf00b68a787581e63f3e8723d7da909f2187e608c430e5dc555871c166. 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/GBPWR1600647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e4d0981c5bbb420535d7cf5d2aca923a8db2a62f17855d539830e7330e0ad0. 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/GBPWR1600648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa141b9f075bed8494fb80f9da19a983cd1fda43d6471eca006d312ed0715733d. 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/GBPWR1600628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb988ac75ef4d7b2c435f628c7506acf2677039bb17488a9707eafc9232b7f75f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBPWR2500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfea4e4d775b1a6cab65f7ee7172b22715555b3c11984f5ad9b6415b5da93bec. 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/GBPWR2500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6b43e18a82e9026cf316f67d4cd9ec922bf86da44082b10acd64ed36d9de1e. 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/GB2LD2010148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab34a7c2e4ced60d088b47168665edcccac2a68831843ec4d9f22caee9f014d3. 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/GB2LD2010149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffde868944f20d0ae3142f48483077f694143bfa9dc68dfd3f44b100d0b0d49. 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/GB6TC1732001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be0525af4e75ffe0e8d9bcc11704802e9045790c2fc50987ca9a111f8aaf460. 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/GBCJY1700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44025676280d8fded1d2450d9f91f02a9dda458ed1dffdee9b5387e9c0581ac3. 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/GB5KW1800347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f87d59caafd472cf3d584dab085a15b9a5ed1a6089b5447bb89266edb5f50c. 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/NLM7H1700016.