John James Sykes (29 July 1959 – 21 December 2024) was an English guitarist and singer, best known as a member of Whitesnake, Thin Lizzy and Tygers of Pan Tang. He also fronted the hard rock group Blu
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 0x16af4ef6f6fdb872e8eb1ef2df7e6f885687363d87a15a8cd02ab42e97fe2597. 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/4b727c7e-00e6-4ac6-87b4-7cdde2611e19.json and https://artists.proofprofile.net/proofs/artist/4b727c7e-00e6-4ac6-87b4-7cdde2611e19.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 0xf768b5f45741431642cc4218cffc7b011c0b8fbe158d4dc159b544eb63549647. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM80969749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c306d0c50d44eec3822bfb917178da33cec6e36c84b7ed9138a3dab65120a4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USHM80969751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012d3b0a2549b0d1c6b0dba584936b1e506802e7405c085b056589ee525dd8ea. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:17:18Z), 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/USHM80969752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc2909f8602584585285ad8688f6786cc321add1739ae5989110d53163172ec. 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/USHM80969753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2caeda5e72081f793096de8360b40647d7364dd349c0e2300ab49b5944332310. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM80969755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0201f302d6f3173ea7c770ee6b251ecbc2c02b7f6a1ec07edb6996a94331181f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USCGH0792794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b1f5076e312f94718ec2376fcebed5dc06a44ba6b9060a5c5e3c8176a70281. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USCGH0792797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2b777b0f45505baf514d81a7040ee53ebbf79639ca63da8b900e9780b44a19. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USCGH0792799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93299cfd9f015505f07086ac4f52410f8ccc0fb8b9f32fcb597614a65592d756. 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/USCGH0792800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8608d6308aeb93c00a323186f765d1982e17d84ec4c413ad1c20e4815e07f618. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USCGH0792803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4651f1fd812048328e10eea75327aa56d6b43d3e484b5e930d199983d8bda3. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/USCGH0792937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecfd9dcd2c4941dd71a7d01eb35395daf80ebf7eddd2f5809727dd52ae1b685. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:18:18Z), 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/USCGH0792946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a518608ac8bbdab1fc7785c11720c18398931ebec0bf830ffaf349e3c2a8e04. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USCGH0792926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910ef8714639cda63edcae7b7747a6f143258cce0d5f578ee68e2d09342166ca. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:22:10Z), 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/USCGH0792927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa690adc68b6506b39cf51a400d40493fedb471bb5663244ee0d909bb42707118. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/USCGH0792928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e467fb3c7fd6dd3179ef827eb188027878f05bb5883fb842d4b54ba3f2c0c9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCGH0792929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4836af35ff12ffd8ccaa9cde5086795d50635c376946d6c9561253ad02408591. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGH0792930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33537bc188dee9faed20891e175156fe67dfa1c561b7e7eca7fd0dadaf4a028. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USCGH0792931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1447586a0c0bdbc5186f5146311b90063e64cdf0515c0543e4b2efe73776018e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USCGH0792932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c9b1e53dae06b3cc59df91374d730fffe4755acce66846226909b6c422d31c. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:36:54Z), 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/USCGH0792933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3067f85c0de5413419c97dcfbe07dfda852ec818751dbab3541dd466574e6b80. 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/USCGH0792934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f3c82edf7e6c5336e2fd2ea654af1a3ff18b9e10d3c870e7aa360aab8cf14a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USCGH0792935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b870bf18398350b7f25ee7e67e2451ea144b04b5e05637664b71b7e8832db69. 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/USCGH0792996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea6d69eba184dce485b1e2086364f44f6168f5e00fd3052712693b3267c18d6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGH0792997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18df72d056a9fd37932766133f1f26e909526315d1879d276e76e048841ce1c2. 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/USCGH0792998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a7319b3b3ad4a37855e09e9a0489087ed33503c8e9cb45b8fbc62df98d4c2a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCGH0792999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89a75b8c50aa370e3f4841e4e3e29d0699b1947fd0bee890dd1e50513e2692a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:24:15Z), 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/USCGH0793000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da19aca78b0bd034b9614a3f395a19f36484560d0307ba79eede4d2d33dddcf. 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/USCGH0793002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38dbecc853e975b59a088d67ad525df4ec3159b267602884c93fe5c8de120497. 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/USCGH0793003.
Fearful Symmetry: Songs & Piano Music of John Sykes
Crying in the Rain / Soldier of Fortune (feat. Cozy Powell, John Sykes, Jon Lord) [Live at Glasgow Apollo, 01/03/1984]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0307a99fadf16c0ad53023487a3dd3d924544f08ed31438a67315b4ca96cee81. 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/GBGQH1909662.
Slid It In, We Want to Thank You (feat. Cozy Powell, John Sykes, Jon Lord) [Live at Glasgow Apollo, 01/03/1984]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50238e091e9447bc0e91edc4003e55ee4576c77f56b27de470cc6d69e65239b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBGQH1909657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed5e9ae7f9d94cd88faf36a1b93fa1a8902823b2cb40c3cddafbc8597cedb1d. 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/QM6XS2000610.
Fool for Your Loving (feat. Cozy Powell, John Sykes, Jon Lord) [Live at Glasgow Apollo, 01/03/1984]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61093d1cb9218ae8b273b18240640b40ae1eb3a25accaf15402e24e82c372267. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/GBGQH1909636.
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
Ain't No Love in the Heart of the City (feat. Cozy Powell, John Sykes, Jon Lord) [Live at Glasgow Apollo, 01/03/1984]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fd25fca70cfdfafad5ae6b5a740d6417bec7053554be106f7203bead838f74. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBGQH1909646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcd9b5ff5c908eebff3d58c573481c58ce2fbfb73e4678126fc44a8a784e9a8. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QM6XS2000609.