John Graham Mellor (21 August 1952 – 22 December 2002), known professionally as Joe Strummer, was a British musician. He was the co-founder, lyricist, rhythm guitarist and lead vocalist of punk rock b
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 0x664a3c6e913e7bcb6730176fab97f990aec59803e30b16a7a75a2d7440777aa1. 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/149686ff-1647-4782-9b70-5f45b1d5c51f.json and https://artists.proofprofile.net/proofs/artist/149686ff-1647-4782-9b70-5f45b1d5c51f.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 0x56824a89648c8913236c9c98321ef9fcb57d35fbb85d419e7e8d7a419a9041e5. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USVI28701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9a9762a33f2f22360d26d6a45627461a92ed7892d9abf9c84e9ef5fa39e1a8. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/USVI28701003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e099786205c58ac603c52bbfb04eeab514bd06cc16d3e029b81be369e4bfc5. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USVI28701009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbf1f67ba9a753b7e96effb3b984bdc77a8686343a97144f3e19d37675e16a3. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USVI28701015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92c8d5c746d5d390ec1d8ae4fe27287293056d308852c64f82accd21d477ecc. 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/GBBBM8902070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e980a2e9c968fb86745c4f18315b35dff379ca7b280018d46e63ae9f2f933b. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/GBBBM8902071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759064846a0955be277e514ede0218bcf829cf012b75176e9a0ed9b74438a7bd. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/GBBBM8902072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd47e34d53785a4f3654e96d7560aa92bf60449f81737e4988ca32f264dedbf. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/GBBBM8902075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5612b042c35fd6516e37e88d261516faedb63843c9952279ede5a4fe1ca54307. 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/GBBBM8902081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5004e74de3a7b7a7a5c15da905d76bac1f13dbbd3cd8838551124d4d0b862d1. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBBBM8902083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a219079e9da8a1dca6e989628d181b5838946d4c30f4fd2cf61c2b1d8db7cf2. 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/USHEL1202002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003c125a50ef1b3e8855100a12a1a450e24d0875b32ec43d8162cf6a943246af. 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/USHEL1202004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717efe91a420c7f03d854a8677be4bf32cbcdcc382f86f1df8d31d12ac9d3f85. 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/USHEL1202005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620709d9843d304ac58dff7c3a9644a17f043301b2f7aa08d6d8e69d3c3c623c. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/USHEL1202007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4683ba62d0a595fb5518c164588ec28ef51e8cff56c57518c6c3e57eabf3784. 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/USHEL1202006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10733600df7e61785d2af9f9de2ee86cc7e1fc96443d8610717b885f519e846. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USHEL1202008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4e19b4b63eb389b8c504b80496971cbf8056c366500e2d287bf5a470bce205. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USHEL1202010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21f550f38fa865e095f4ca4e9218a8eb2c17a9555f7b1eac31aa4cdb9002f62. 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/USHEL1202017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dabb78920d1031ae98be8ebb2eb485d597b9c926485a7f76c7ff2dfd211b85d. 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/USHEL1202020.
Joe Strummer & The Mescaleros: The Hellcat Years
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2081fefcc8128cebe55ef69e362ccaddb9f38173c60061180bb1ec6f272832ff. 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/GBBGB1800052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc483c9710539703e01549a7c06752561af7718fc1d4f86eb979759fa12348f3. 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/GBBGB1800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8fd6f7e26c75adcf249b3ee42548ea05996ef0b7b7126db7858841ef9b5f3c. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/GBBGB1800067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f810e9d6608da993d60571161bc1b875462569749f7ef259a4b7bf7ec13a74. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/GBBBM8802079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f31db04913efe40554c671d09fc008bf1a89f102965a45932a82e3af4db936. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/GBBBM8902085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568154a5a0bed4b471eef51e9f80e4f4e9ee03c302feb5911bde495bf8253d77. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GBBGB1800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cfb419529bbcbc3bb49f72f43194ee9e457660b13e937fa6001be7a45f19b2. 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/USSM10606954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803a7bdc47290e5527b055731744d6239db2d5c4d5b55bcc6d9c25686e4a05ac. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMRSZ2001610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9644027c244d1438f3279bbb1b7a4a71413b4ba46ddd3c8432e08b74c5fb9d. 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/USHEL1202018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29b9a38e0273451ada294de96966bd6c7ab5cddac4031e237960c465edf8f36. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QMRSZ2001611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69bb439ce6c8767490bf26f36961f716082a742ad3c97319b3ae779b492398c4. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QMRSZ2200371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7cadc0b578b4a8ede157640844c8b195c2132d32f783c1af60593ec418ee70. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QMRSZ2200380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c1480169cf799a615d4e63aaebc2f093fb99d37477f4158b6850583efd14e4. 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/QMRSZ2200384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec12ae883647c22a17dfc1e568f3e8c2a42780113a6ef10e47503740a26e7b7f. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USHEL0330103.
Kerouac - Kicks Joy Darkness (a Spoken Word Tribute With Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54ad5b92f21c88ce09f302a5e657a923785f631a25b5185ed1bea6bc2992faa. 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/USRY29600420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063b40525f87aac86f6dda9800946eaef625272757b5ad2eea4555d9e5832ad8. 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/USDJ20301194.
Jools Holland And Friends - Small World Big Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e443d5cde2ec424db66f4324e2c8ac1cda4f2d054c60841fd341a05e5b23c45. 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/GBCRL0100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6598e36759516db5f2d32e984f76ebc3d89122408a05deb03de3ad5b81db063d. 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/USEP40811179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cfb419529bbcbc3bb49f72f43194ee9e457660b13e937fa6001be7a45f19b2. 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/USSM10606954.
Chef Aid: The South Park Album (Extreme Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cfb419529bbcbc3bb49f72f43194ee9e457660b13e937fa6001be7a45f19b2. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USSM10606954.