Mark Barrott (born 1968) is an English DJ and record producer. Early life and career Barrott was raised in Sheffield.Cooper, Duncan (9 March 2016). "Making Chill Music On An Island Is Just As Amazing
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 0x15b52f6db64a8a706f0f8ad99a96f04288b4fb854c315c0406da4817606fe662. 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/3aa56a9c-a60c-413d-b72f-25d61c4b39e6.json and https://artists.proofprofile.net/proofs/artist/3aa56a9c-a60c-413d-b72f-25d61c4b39e6.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 0xf0b0e0ba5af703b16c11675b1dd875e4b07ee2d89b4b081757a0ba95ea54db80. 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/GB4QC1400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239e391441a64d0471d3bcd8bee9b10ead13026d650c7b1ce61494c60d81fd62. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/BEN581500335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69294feb1cafe8c31f7c5f5da2aef314b0b371b805b27cb5219c8fac655ed6ea. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BEN581600135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5904636713fcf069b6c87105f06ed63bfc72a8196ef755109a05306d1714afb4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/BEN581600136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf7cd630ce930588794f55598087b8f3d9cf8899c2e203cb20b7e2371d49eeb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BEN581600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1904fd572bb2ea3c68a3387190d2b1107b9cbef304d7f304adf6660826af1ec1. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/BEN581600138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34781d73af088dc3b1894bcb3900230f6b5879120c92b4e6391db525b5eb4f0. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/BEN581500337.
The Mysterious Island Of Dr Nimm - Nu Guinea’s Aquarium Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7999d0b54a92f93cbb8793ed46f2f631b82095ef58c776dff3a97bba06e67466. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BEN581600356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f2336fa86a5f3599c3bc1d9d5791bda1a9435923e60f394c29af1d74c7a365. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/BEN581700290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a4116b2d558f03f581610759e3469713b0f63576e1ea1680a27f8a98d545d6. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T11:57:43Z), 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/DEVY91800127.
Icarus (イカロス) / One Friday In September (9月のある金曜日)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf631466a8251cc85f08f0d3d688d313bcbc12677f22fa12fe7b292bcf3a2ca9e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBEWA2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47a40e61ce7107685493970cf80c46f1c4617e09274af18afeebec7eee278b0. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GBEWA2300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28958c5df05fc18491b1c25fca1d8ff87c970d558ae112011daa5e53eede9b5c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBEWA2300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cc160872b14b61a89fee1ded863755ffb2245af7aa7b87a2babb2a0b64cfee. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBEWA2303640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8671dd6219ef021b187f843da4ab6201baacbf6429fa92b388f57ab211c2f00. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBEWA2404465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec02fbc603f8d4a168437d05c56746270608b8f26d786f4b620e9efa97b6b52a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBEWA2404460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1323680cfc3dc029f11314bd220de6d312492507cc550bf226d14cea8f81601a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBEWA2404461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45602b5ee876e72e93ecf9b9f4347806cb6d857738fa6eee677e30bc28a1d362. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBEWA2404462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e4141bc1a737b0475ac3d52713b2158ba0b80d754be225bdd24bdc3186ec0c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GBEWA2404463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c76bdeeb4e8849c3f8c4092ae30cc75e0d5dfc110ee328bedcc45deec27dab6. 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/GBEWA2404464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8671dd6219ef021b187f843da4ab6201baacbf6429fa92b388f57ab211c2f00. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/GBEWA2404465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19878f8146988fa1a0483ae4a8162f74c384fb70703ba3321e6f8612a6e0abb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBEWA2404466.
The Light Is Still There (Peter Sandberg Remix)
Everything Changes, Nothing Ends (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f559d142000b50db47f2bc218f9b8841b665d20521710debf04f5464e33485e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBEWA2502250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f559d142000b50db47f2bc218f9b8841b665d20521710debf04f5464e33485e. 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/GBEWA2502250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61e2578025910c3e754d51cf75aca6ecac9726f9c50dd81a8d2e5b21d0fbc06. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBEWA2502252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8dd67084b47cd205ffcb02d26dc450905575ba0e33e593c13f6db4e57628f9. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/GBEWA2502256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63974c556c95edd59722a3c350c59aafb038cd0cfb3609adac2ff4d93b6a7823. 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/GBEWA2306661.
Space is My Place - Mark Barrott’s Re-Imagination to the Sacred Heart Center
By Your Side (Mellow Mellow Acid Versions & Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5c11db6808c368fa731cec517af9623bdab862bd70b436da8e02843e7ea634. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ITWXB1972104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26074bfcd959638b4122da21db690913cb94326786561583835be595768b267b. 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/GB4QC1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2060d8aaff03346628b45d5908f4ddda3b3c4b203438478805da2a8a9ddcad55. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/DEVY92200086.
The Light Is Still There - Peter Sandberg Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7bffc4fadbad625f990de74758c0f52086e84fbead7eacca3dc30c8896e880. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBEWA2501170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19878f8146988fa1a0483ae4a8162f74c384fb70703ba3321e6f8612a6e0abb. 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/GBEWA2404466.