John Mayall & the Bluesbreakers were an English blues rock band led by multi-instrumentalist, singer and songwriter John Mayall. The band has been influential as an incubator for British rock and blue
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 0x20e10eb8ed1ee074eec645f1e581c1dc449d737bbee81199b12fff57f146e662. 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/a76bfaef-06a1-4953-9790-59bf28ed5bb6.json and https://artists.proofprofile.net/proofs/artist/a76bfaef-06a1-4953-9790-59bf28ed5bb6.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 0x0e66153ce33b6b4729293b95658b6e235f44a583dc9293c3215055cca413e313. 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/GBF076623510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd57a61a8fe0ea5940e606a51f5ce0bc363986c8236410aeb3e2b0c25e3269a5. 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/GBF076623520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5a2ef904be5f1668a4a7b3cf4f4ad0b5daa592a86b4d668bb6579f4af2c593. 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/GBF076623530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff9f1ca32a2faa91890865622e3373924152fc555892a84b45159649b18a0fc. 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/GBF076623550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f554e59b8256420f5cbde5fe890e2d5e0d73ff2b1c752d1537e20dcab1754f. 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/GBF076623560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d89a6700e141cc4b325bd5e0734e4923c43a4d5b0b50286272b7b15021acce. 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/GBF076623570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc5305dbd0abfde110591a6ef0c6491d2c0c3ddbeed0084d8a2b90d25017bab. 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/GBF076623580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebefe882acb97ec27277d12b0cb05f46a1e782f64497929580607bc12870039. 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/GBF076623590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f0f2c7fd8c487a87b1b909cdda2d513baa64f793c9620753943bab2569fe86. 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/GBF076623600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac94ef691e17a54530a7e4522273ea0dd5db48ad38d9a3162030c372a727ca7c. 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/GBF076623610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75ddf58a32d581096ab1e782a3195dec4d96511f1d24fb9cba6abf83a4fc611. 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/GBF076922570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185062d0f92eca00adf1e52192342d8e9c11dbda861551ddd38468673f26845c. 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/GBF076922590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9f36d66cf807f5f449ef48d8b87eb3b653a0f05b6d1b6d4eac05586d339fb2. 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/GBF076922600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1932caacba31d15f3ce1d5318659957852b9de515972ec878dc47f52bd42951. 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/GBF076922610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df9b4a7a5f589db22b34a0dd5d9c91929ea36a6f4271e7cf11e5e4510bce825. 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/GBF076922620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa9d5c57a6ef0c260f0afb991402117a701d5bfc32f14ea2fb5a223f4a45990. 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/GBF076922630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434dfc7469d6bfe98f80f05731244d9577c5bf004ffee413eb676899f7f2744a. 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/GBF076922640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7bda416d208dfea30804f75194f734c2e569fb15a74289292c61e93cfd7869. 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/GBF076822650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5983ac5bb9afddfecbdeca13786bcbc9a017274240e32d646b811d81ce35a07. 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/GBF076822660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b29efb41383379b29588b153f92ed360d75630273e22598c77eb445dca1fb7. 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/GBF076822670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f05e98455cfdc16d69066d07d2e73e7a51dfe4ec6907fb4a6e7f2abe98bc82a. 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/GBF076600110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfb2fa867b8b5b5f51aafa53fdfddcb0fcbedced494f9c2b85bf8fe1a3667be. 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/GBF076720460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33eb2c32df40d9cff855c677bbfd8d0d280cd6923d5a0a3af3cb1de6ce821d3. 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/GBF076720530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc0fbaa6ebe9ca8190f8a31fc16373dfb26a472ff9b0743310bc3e84d2d9377. 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/GBF076820950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27915e44a59bcc1c02d106e9b73361faef2ce9a4212376f3aeeec233c8063195. 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/GBF076820970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e64087d67c65c38b2a46344ab2731d35b1e1f4547f17e5e9b864ad29ad7347b. 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/GBF076820980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc496cc3d20fcd3bd4eef47861df566b2b35417c0dcd861b421e14d76d485ec2. 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/GBF076821010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94d2f5c473d0dbe0c11d19f4b9bf1d1af3a4a14c9cc8c1e8aea520b673d0611. 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/GBF076821020.
Aragon Ballroom Blues (Live Chicago '70)
European Union (Live In The UK & Germany) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbe8052615f850bb84a41911e30813d3db6799cecd42bc25257baf4961fb699. 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/US2Y30610519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfb2fa867b8b5b5f51aafa53fdfddcb0fcbedced494f9c2b85bf8fe1a3667be. 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/GBF076720460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33eb2c32df40d9cff855c677bbfd8d0d280cd6923d5a0a3af3cb1de6ce821d3. 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/GBF076720530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fb9f8e4262c44bd3922b7f8eb8e08c94333b43da7be638b798461d8ee86555. 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/GBF076621250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74800a87aadf79077378d153d9df9fe7d160b0db09cfce9cd272ede63ae48dc. 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/GBF076621860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e7f74eab971458362db22613c880b032d0e382da210558bf88dd1b79b2452f. 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/GBCBR0200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b133bfba1bf9e3f69dfae6d13be78cea2721380e6c92a32548d1fa990cbb01b. 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/USSV10300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fb9f8e4262c44bd3922b7f8eb8e08c94333b43da7be638b798461d8ee86555. 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/GBF076621250.
John Mayall Plays John Mayall (Live At Klooks Kleek, London / 1964)
Live at the Capitol Theater - June 18, 1982
The Very Best of John Mayall & The Bluesbreakers
Silver Tones - The Best Of John Mayall & The Bluesbreakers
As It All Began: The Best Of John Mayall & The Bluesbreakers 1964-1969
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e7f74eab971458362db22613c880b032d0e382da210558bf88dd1b79b2452f. 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/GBCBR0200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4dc3a76dd540502aa7de441c8f5703813e40b27a31bfb5fbaeb7bc10ea8ada. 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/USWWW0200980.