LZ7 are an English Christian electronic dance music group from Manchester. The band was formed in 2005 by Lindz West, a member of dance band The Tribe, who had split up the previous year. LZ7 worked f
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b7d9c9e3e34cbbc4cf83a3b9c6f39a50ffdde0afc07a9c8af9c7455858bce6. 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/3aaf5869-de28-4b1b-b62e-de5ed8c46638.json and https://artists.proofprofile.net/proofs/artist/3aaf5869-de28-4b1b-b62e-de5ed8c46638.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c15cadc2e3a3c840748d620f10d38779604c1eec41ca879d2cb4cec2d0710a2. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:19:39Z), 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/GBBTM1005701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98f922e37599aba82493f175e22d4b5e1c3b6de1efebc7784c1243e9efd47e8. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/GBBTM1005704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb650ea52c186a8d7941849ff71d48a430d13b6e71945676b435f6306eeb83e1. 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/GBBTM1005711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a0b36c644e6824a565808a5f3d11e0989fdd24bbeafcab1757f0f2b702e6fd. 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/UK3AJ1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a32790b63b4b9b5e0158c57406a018e6c0e43253e143a1de1defe79ea292c16. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/UK3AJ1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e02c354acd9635f630de5ad6675ec8b5746ff337bcac3faba47a93df1603a0e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UK3AJ1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf9f74c17303d3b8d86d56a4a3300252fcb253b9d0259edc2c146fe571e41e9. 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/UK3AJ1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55e4d86e0eb07fba29d9aad0c076e8ec259f4b3261e440d553783b2bb3bd933. 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/UK3AJ1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1996b6053823d1650b3cd3e795a3387716785ed2bbcb96fb42bc61a3c18a1fa. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/UK3AJ1300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1790a5dfbcc21ec6844b1c5e4078452456757933e0add46c00988932c821355. 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/UK3AJ1300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07093929d7829cd95004f3ba5b125d40cf54abff7734faf8101fb0ccf5b46235. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/UK3AJ1300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a4d80f27f2ca171a67c6272dba32ff643bc429ee5019331cdbf828d9ad7509. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:25:51Z), 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/UK3AJ1500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150a66fa519efdd85627c3a019ea299c3a232e8982248b15d91468d3e1cf6eba. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:53:46Z), 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/UK3AJ1500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f34ad7c332385b0fe07d9db664060e285536ff71fb2a9d282dc388645b66cd. 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/UK3AJ1500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfebf8ad0c43c23eea19bebf12b339cf865fb7e32d610b25e1159da151bcb71. 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/UK3AJ1500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae3a29574ff2e7c15616db74a01c4b5de1e43033f09acb9b0b803539e633ef4. 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/UK3AJ1500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3015941082a11ca2e6d5eebab535b514007d024a803e5210a7ad57e04a0b32a9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/UK3AJ1500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf221c743768a46c742a7d70ea8f75d355cd7055b2e1e3313a814a930532e021e. 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/UK3AJ1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6cec29afea4b492f5af1a2616885429d0b17784ff6be4879993cd4fcea67bd. 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/UK3AJ1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92626dc8b70b1c970dec0e88ed04af06f14a552eb93722197111e78990e35c78. 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/GBKPL1950597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfbc8f441b3a9e4620b90ec7f7fa281d0e0fa80baa34aace2b9449d100c0d26. 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/GBKPL1950598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d9868756fcff06c9103952e30a9e7183c0994beec58336da5ffcf046013b0a. 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/UK3AJ1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa986eb15eb07a5ef8e3bb9286118830bcfa612878d4602b534f57a2819dd7f21. 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/GBKPL1950599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf221c743768a46c742a7d70ea8f75d355cd7055b2e1e3313a814a930532e021e. 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/UK3AJ1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7a847a02c3e9eac09acaa29f31707b4015a13301ff19580838f7f48257e455. 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/UK3AJ1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e6ac2b7159ebf56c6763850cc4d62b59f4baed13a22738e2835bbdf0ed48d5. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/GBKPL1965825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ade17e3f2bd4de79fb8edf08b7bf038dc0f2f8bcbe55739e30633a2f3d30f05. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:05:13Z), 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/GBKPL2095826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa053faf0cc7d91cb2c8bf8196631d0505628053a093c35b0e079bf252e47d859. 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/GBKPL2098088.
Sound of the Weekend (Billy Da Kid Remix)
Won't Run Out (Steve Smart x Jovan Bloom Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a95d12f005528d1698d641893583783dfd6fcc38199f8e2ec72567556b6092. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/UKW3Z2100226.
Back In Time (Wilson & Smokin' Jack Hill Remix)
Back In Time (Charlie Hedges & Eddie Craig Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58f3b5efcd4b1ccf565155143f83a5f02d9c0413de8592a79388f207d4ae474. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBRKQ2240072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2ed901473987d19546b3e9abf0844d90fd1daa4bdbc677ea915831c645304a. 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/GBRKQ2298408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c30cc81e755c9065d20a2abc56e4166ba0c21291bd8b6f7c552ea44579435f9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBRKQ2298429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e1487b6b8883c8ab400142943fc3c9711c1ccc01bd2d3a38da13b08c32fddf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBWUL2256865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7805d629b9edea94ed55580ff70e2343a9b1e512a5ca7890d288d72d1d884f. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZWDD2230570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ed1e59c8e1d58cecd303315217655358013ac414a0970941433e9e8e143c98. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBRKQ2368832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c4b28afc3819660790bee82baf7df1077442481dd306685e328ec88a4a7c3a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBRKQ2368973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcce009cefa72104cef2a07cad3e6eca364f1f073b27e96a4931e88737f691b. 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/QZ5FN2445750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e30f7f0d066d51ee529b00156d3584969febbe502b4cff5ad2d6e52e2752e9. 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/QZTV32435411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122c2bf25eae25e34c0f66e87e5ea19fedde5b06f7ce92fb2938f49eb28c25aa. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZGXC2500827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b1a2814cefed5176ecfa475a45679ab960741b66dbb8eb813e9efd3390d2ca. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZGXC2500833.