Martin may refer to: Places Antarctica Martin Peninsula, Marie Byrd Land Point Martin, South Orkney Islands Europe Martin, Croatia, a village Martin, Slovakia, a city Martín del Río, Aragón, Sp
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 0x79a6e66f9dc484e6a0ba3bbdf52452eefe185103b84fac2f1a657851918ff4a1. 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/8c0125c2-1988-4990-b0c9-7fb083185a73.json and https://artists.proofprofile.net/proofs/artist/8c0125c2-1988-4990-b0c9-7fb083185a73.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 0x1dd785d83b3404a3ddcc93581d0def81c42b75b2d601dbf0271f671750bfe72d. 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/GBMA22347552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93501182d99e7a98d422bd26e9a6df70768d36a88fcad70d82900ef3b4f4fd15. 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/GBLFP2373589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681df11f8b01ca2c3b13214155f39fb72751ac7d4f28e5ae1353f6cb79f3e864. 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/GBLFP2465777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1334df8d6abe074e16cf6b19c5f54ccdeb7ed1512ee5af64347180d23811d5b5. 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/GBLFP2440580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4295c7f8dc06fce8977a4917b105bbf030cedbe0ac12414b998fe3fe0e01bc. 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/GBLFP2465778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988b8e904a0e81b710c97dac9e15cb9fef4143433c5fb6db1b0693ae01069315. 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/GBLFP2465779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253fdcbe726e678d8f6dd48f695cf44e3771380165e06ad27c524af21fcb71b9. 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/GBLFP2465780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a8889c57cb6dd2bdece76e0f67230cdc498c6c4c4d442288ebd43f30a3057c. 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/UKXN22306779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f566e18db89b6b1ede210b79ea7895424598f36055cc780798d27500f7c578. 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/GBLFP2465781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de84f2ea1fc533dba0fcee3f4ddf9c5df3fb20a2d3b79aa5d1c28eed9b1c60d. 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/GBLFP2465782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8891f518084326d947c1c6a9560f337c443abc6ede47a4e9d63684cc334a5bb. 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/GBLFP2465783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53b2dc78941bb99aba2646a6f063419769d5e03599a6a7c241e532d3c677dbe. 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/GBLFP2336741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988b8e904a0e81b710c97dac9e15cb9fef4143433c5fb6db1b0693ae01069315. 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/GBLFP2465779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1334df8d6abe074e16cf6b19c5f54ccdeb7ed1512ee5af64347180d23811d5b5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBLFP2440580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd785d83b3404a3ddcc93581d0def81c42b75b2d601dbf0271f671750bfe72d. 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/GBMA22347552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a8889c57cb6dd2bdece76e0f67230cdc498c6c4c4d442288ebd43f30a3057c. 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/UKXN22306779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93501182d99e7a98d422bd26e9a6df70768d36a88fcad70d82900ef3b4f4fd15. 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/GBLFP2373589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53b2dc78941bb99aba2646a6f063419769d5e03599a6a7c241e532d3c677dbe. 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/GBLFP2336741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c919d3e92687a3fce5058e56edd372008dda443dcbe42ce0ad0eecc4cda432c. 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/UKXN22334754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658e2ea0006537204dba468b51089dec598504dc8c057d70c92d4eb5efffdf4d. 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/UKXN22536216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb76b04a40d693161e62d480003a44944b5994e4e93c90e9261e43670ca7f93. 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/QMDA72413575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7c7ded93c905553bec85a953fe6fd9b347a9762add8f8fd588c14f5bfd7b00. 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/GBMA22379785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82243d0ccb82072f1a86b4150b4957263d7c010ac419511852f668bebc294b01. 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/QMFMG2341476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7e7b007512e11c1c3f678542c81913b4dec9f79de236775ca1777074d5194a. 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/QMBZ92375068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96938e97aa589dfe31171c9db26eefaf94905905df2c86b5e662e7ff9d41a1be. 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/QMFME2337315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb145c33522eb01fe1de516551fcef770da3fea40cb71432b789a0b39dca3d2d4. 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/QMBZ92498054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358abd12920e63e8a4aa4e8c504b3620ac10ea1a41bbcdbe242e8cc0c8a01bc7. 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/QM4TX2453942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806ee891bfc7c76c60683f748264d32b547439ee84ee146ed90d74e94a375dda. 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/QM6MZ2434073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f783fd311971bc1778f29c0f75aa13668b38396bf6f5a5a0baa21fe0f90d01. 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/QMFME2440305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea6df42687f0e9561c31cca573a5036a39570456998a2065c930b8ce09c32c1. 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/QM7282492046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90db6e5096dd31d45ec9d1f8e17fce9a12f95ad8aef343113064b2dce428a1ee. 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/QMFME2440315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e7cd49af90018e3b4f35dbdba47042ef943d3cb82934428102f2bcef2d45d7. 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/QMFME2440316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228443fbd3b513b54b3154174c40964845eef4973ce1922b2019f2ab4c9333a4. 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/QMFME2440329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ed55b11974bd91b601282b057983d4c16c939cd136984584241c7623a290f9. 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/QMFME2437379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f95e05234780cd1a89390d820c7b4a5c0f1952fd161a703fcddd8a2695ae350. 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/QMFME2440344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a24dd92accad63598a8c6f43bef512c278690a430f7c050a3ce0437bb0c89c7. 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/QMFME2440362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964ce9ef1ae0b3046b4995a250bbbd9453c8a319c1068c25c14b6e0327060a3a. 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/GXF9Q2450171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677d307338484486dbf677ec78a6260694c78b1c09133863d07b00867334132d. 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/GXHG92552820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c8f68564f9453d6508803e7d4a89eb7d8a62144937d871eabd982e5fed0448. 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/GXHAF2503907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724bfeb0c2f2067c54a44e455a3c4caa50a5408325a49e191db0b4aef3dbbfaa. 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/GX53U2594767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b616bf8e062a8501243a4531c7a6dd75868f4c23aa352e2f2ac2a791308552. 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/GBMA22538877.