Marc JB (or Marc Jackson Burrows) is a British music producer who was part of the production team that had a number one on the UK Dance Chart with "Thunder in My Heart Again" by Meck featuring Leo Say
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 0xb197478ad72f8c092878544bce4899a72e19c812706f74e2d048294e40d3b1f6. 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/3c4efcf6-f512-4c4e-94e6-4e4a5a37d924.json and https://artists.proofprofile.net/proofs/artist/3c4efcf6-f512-4c4e-94e6-4e4a5a37d924.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 0xb47f69d96c202e373d846c1f0fddd7e43d6945135af6e23299504e233efed9ce. 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/GBHMU1500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339df3a06480dd0e4f58230b6693d5cd0bdbfc28a62a5c5d724ffd6ed7b415ac. 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/GBHMU1500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc977364c2861cf4a7161e115886895a701a1c69e4a6f8a33d43e0068ea833617. 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/GBHMU1500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fbc2ac5160673d33f74688c638ae02c6f6cd9e093813d00964586c4df085b4. 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/GBHMU1500166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bad0c5b137be23ca5b0b220c1bbf8b201b7b238546c65bebec3acc05f08bc8a. 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/GBHMU1500167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1be4592a4736bd7510285976e94a790bc34b46f8d022948172c501fdebfb650. 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/GBCTA0300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9a39dc1053092de736ffed57601b9f8bc3553da052a608a8c83ce6aadd3ba0. 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/GBCTA0300193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a47278f40d6a6ee602afb6e803a28b2c80b5a1826a5d36054dc682d0ead3e7. 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/GBCTA0300194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a0852b1e5705132a613819ca30779c8182176743e9e4f9b26d6d53ed5379ae. 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/GBCTA0300197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0b592f8511b25eeef70f9fb9dcaeb9839993e72084f57650fd40b2274e148f. 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/GBCTA0300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964a0d6e6ad7792aad59ae7610b3960a8b19f65b6dc93062626603afef2b7cc4. 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/GBCTA0300198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3963cd4aee2d8c513bb9930f28967f55f7401859e2e161b6ebc2c57c1e50c149. 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/GBFFM1732540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c55d0570dcbc19dc96b199f051d15377d6c21ca9b228e917a33f359c9e8c2c. 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/GBFFM2268507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea79da56be93ce62349d6b9f33c2ef4c5de80a79f96debb11e69878d3a30493. 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/GBFFM2139726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e348d59e65994847626d6a0446c5f266b911489014069eccca50c40c8258ff. 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/GBFFM1804542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d00478f701bae4bde984878ed2cd35394cbb322a3a33b3dd966d52845b899f3. 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/GBFFM1804538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a316bcfff2cee86d43c64d818f00e89492c2a558b4e8fce9b51618cab789ae. 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/GBFFM1804541.
Free Ur Soul (feat. Angie Brown) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992921867b8933a92bb09767779079e1a35689db214c55558a67c0001f1a4935. 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/QZZ8B2370922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6a61cc503b45197ea3a7249b5e13c153ad8a11b3cb75fdb59bc4b3bf86e995. 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/QZZ8B2363771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485f369d4be342bd6342e7f053841f454403c3e73ffe79976bb497998df94672. 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/QZ5FN2376289.
You Know (feat. Laurell) [Exclusive Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f4f323c8186973d87081be8000b2017bb54c3b33ccb2082bc68f49bbf70a9f. 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/GBARL9500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5eab8670d1276eacdd4813ccac301264d6e3af01da5394ee44b073b235b6bb. 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/GBARL9500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3117b9f97ba1736819c5a80cfc51e7bae66f90d4eab77703c4e225ec104f74c. 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/GBARL9600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca1f5f54a5c0c2c13e04054585b35581c3ae448de95e1078baf90952792c83f. 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/GBARL9300062.
Relight My Fire (feat. Lulu) - UK Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e15c55f6ec3ccd75e49a7277c596dd639288be454343a7b2434a01e1a28bd62. 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/GBARL9300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35bf61503e07933c27a65f41eb20ffc73b39ecf4696375db26d4be7bf3f5f76. 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/GBARL9300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f39763e7a5e5094935bb2743f625e68a34bb2f88ec660b88fafdab061d365f1. 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/GBARL9300151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bb009fdcc010dc34fc0da159f1ba3b90cde19a531da99d72a7d8a564eeec0e. 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/GBARL9400299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9aeb82d623c43586330aeff0687a688cd60d0d3ca8b86c810071a64901bea8. 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/GBARL9200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45207eb0686cb5548d2d4f727f6accd71f609ed3a88aa102b1f71ced2c719a3. 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/GBARL9200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8c67a7f985fe4f64aaac7533735e11556c14966d05343a1b1ffb839d9f972d. 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/GBARL9200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa418d9289d0ff2d958a088a95b60389decbdfdfd69c98bd320c096bcc7a02c03. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBARL9300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aaf79ffa41d61bcc3bb3510099d7a738393c8c7c4fec3c06436320445b8bc14. 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/GBARL9300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bb3ad8ae8ddb3bf56898d9b55a014b8526229b226fdbe25a4e2c686548511d. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBARL9200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4257a252bd6f8b7a14c74e9019a79994c556fb377c388efb259040aa8f872a88. 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/GBARL9200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020b5a9824b7726da56db4739d27c9dde3f41118edffb890bd5343b8ef0e7034. 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/GBARL9200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55c900a826ea591a75b99178ab2f02cb2981d8d0cb995fb137bfbe6bd178d42. 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/GBARL0500853.
Relight My Fire (feat. Lulu) - Element Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf24f5d98a487b0ac2fa76378a6637f5a9130289cd0507d8dbbc8a5007bf3d61. 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/GBARL0500854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f305f9e7e4ce230e6370f1d6f3a68f1e7e771ca2feb3f710012a27c0487ce4b. 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/GBARL0500977.