Big Big Train are an English progressive rock band formed in Bournemouth in 1990. The current line-up includes band founder Gregory Spawton (bass, guitars and keyboards), along with Nick D'Virgilio (d
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 0x4d62200c82fec2520585cbc5482ab0533fff6df9ce5deebd0baf01b324532a62. 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/0a253b4a-3a76-4609-9f02-987fcaea1b10.json and https://artists.proofprofile.net/proofs/artist/0a253b4a-3a76-4609-9f02-987fcaea1b10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Goodbye to the Age of Steam (2011 re-issue)
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 0x655f7dd60e55b22c86b7717922c135991fc4f13eb8d6168923f57d36e265509b. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USHM81232139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22791cff220ee4eef5b567530a03135643a81b650aa90eb87f912df1b5932693. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM81232141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe932abf0f15a9391acd250306d014a18daf7fcb85c491b683f7f9492bc7a3f. 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/USCGH1365882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c622e149e27f66268d18eab94ec9170c2c3e43be7d1f6952394cbade60e06a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USCGJ1633052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efa94a3d1a069643a15803db0099c2a068d33f1f45f5b0372db4ccdd2d7fb85. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USCGJ1633053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1d49d8f7964e879f37253905fb34cd68715d1d479ba10d622873ec69af116d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGJ1633054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11100e0a1f2c0abe8a019a95172cf2c4346852fc5ddbf2421dec2e6fcf860e30. 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/USCGJ1633055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b889c72702772b0632705b7d4440d7dc68b72cf3a4da1de217df57cad572bb. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USCGJ1633056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a48f0ec77eb73a959f3f2d7c15988749a6403ba9b54fcd792058a860a6ac7e. 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/USCGJ1633057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428ea668f6b77666b2e88c0befbc300d2612b6651b0dac0e28d35cf6d8f10aef. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/USCGJ1633058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb738614fd9c909c191474c52da5abcee4827d8b733afbab9098585037aa5907a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USCGJ1633059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17689029f1881eb908946c1dd6efb46fea245991cfdedc06df8c8a56c69d74de. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USCGH1751125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f8ebf5913680b19aa863e6354b135f82b309e8d80e2ffb287cfefa451a9027. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/UKKW91700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249191116ac78ab98e001bd584defbc3ea9f37c6c4a517ddb73107b2b93cf9ec. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UKKW91700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8374ed9b6a785404758698dc87d0c0757d474b2da68ea64c9d6eab6709dd11d. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/UKKW91900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5498b44b9b90ff87c82aea24d88687aeedc65991847acfad6be7dbda00f771cd. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/UKKW91900003.
Welcome to the Planet (Live at All Saints' Church, Lydd, Kent)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b63a4e184dad5fd0b6d939b0829f57e9811412c77b04a151cd339ef3f27b2fc. 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/UKKW92300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c8d6bda283ab5841425cdd9e6097c31525e5b9fb32998b3e9f99532afe9618. 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/UKKW92300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a580722e878a02ba97154408c29bfa02891e38000792024a71200d78418f6a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBDHC2443604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbbfce5294d2e237365ad079e3a5f87b05f903038d278a0f0e909c9c18d22c9. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBDHC2443605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3375b16cd5e181409e67ea34fc0bbff43b4b1267e46c647fe7cffe63a375c2f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBDHC2443607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acca0e37df1a9456ff2822b29a9390c56b9bcc669a3f0094d61a0ee5ad8ac99. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/GBDHC2443608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbb2a8093284bfe4c2a43a9c7490983aa8901f5ed44e48d540a32673aea138b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBDHC2443609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577f7713cae3957f8db29d444348cff57b51e7fc0db5ab5c301fbbb4be710c10. 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/GBDHC2448601.
The Connection Plan - Live in London 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015b4a490bb1e89aabd157dc83e0184e1a7bc49726d32a342597e691876eb1cf. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBDHC2448602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d7a5e18c2d7e25f0ddd35f0f151ae3100423840f8753807ec66bacd24c1b32. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GBDHC2448610.
Curator of Butterflies - Live in London 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68eb2e76ddbf9b59959637cccf834b8a916a42c90cbcc00369b104cbecfb36c. 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/GBDHC2448603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38de601e479e00fcbf640c78392c6bce47b2495e05c53888952a1a9dba2b803. 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/GBDHC2448604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d65d1807733ad7f12acb694b61c2e508ed7457ca172d1b6474731175c4144d. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/GBDHC2448606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2436f10725f8ff21196f4e1363eb9bb0975e6354fc4f51a9cd2e00dac6660e79. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GBDHC2443621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7167e1825059d199e6aac038f95c5e00c3270f4f9084af978c2bcaa834098564. 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/UKKW92500001.