Joseph Lyburn Arthur (born September 28, 1971) is an American singer-songwriter and artist from Akron, Ohio. He is best known for his solo material, and as a member of Fistful of Mercy and RNDM. Arthu
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 0x1f1a695f25a0de742060996778c71f44a67bbc4ce6f12fce4ef3b4120136dc9e. 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/b8a76262-b58d-44f5-bfec-c6bbc17a7c41.json and https://artists.proofprofile.net/proofs/artist/b8a76262-b58d-44f5-bfec-c6bbc17a7c41.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 0x0205982b82affa76265de5846772c287df9ec8790e2c83980e27b938c693bf36. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/GBFTG0500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6c9f03ac2e1060ea202326eefb7290db7af9b1b33f89b873db18ca6f810dff. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GBFTG0500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fefc5c1b6cc1571897dd4bc576fcadb4ef2d50573ba165eb97890cc1aed13fa. 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/GBCPA0700149.
Come to Where I'm From (Real World Gold)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c569fb519764e925b694d5d29e895b79b43b75dfe77dcd3104486ceeef6338. 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/GBCPA9900363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3426308242312203367861946711708607cd9ab7da71cdea141990ccbc6180b1. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/GBCPA9900358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0ed603d65acbbfca26454424dd12f461f12a08306fc49c6def7b29c4e5ea5d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBCPA9900361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385a85eb742a79224713e6325afcd5bf57a39c86f6d6534ab53eedb3c616da15. 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/GBCPA9900365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0790afc803a94cb0ba9881010bd45eb1a3951d6680540e22158eb6e1de5774ec. 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/GBCPA9900366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e30a7727bc21f812c6c7d57cba9cdbe9ad51383039d6fcb1a94cf08b72ae0b. 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/GBCPA0200624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a98a950254b393fe7f66f04eb555cf4678430c719a8fbbde23d3fec3f1f25b9. 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/GBCPA0200625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09607eed30b38fe4687d6c63bd66791b1411629f73b6700074de901d84d65da0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBCPA0200634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09607eed30b38fe4687d6c63bd66791b1411629f73b6700074de901d84d65da0. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:28:50Z), 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/GBCPA0200634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0092a7bcc11198550cc837a069b4d25774846a48a77e0f9f5b5161a0ca0011ba. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/US3R80404011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2be3d898113f4a1ab2bc29075e743bba116140cb306fbb7b764c0dcdf386c5. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/US3R80404013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeab5ac5b08a3b61c63be88ab7f64c964c8f0d19978aa47dec9153e244ca0550. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USME30620902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeab5ac5b08a3b61c63be88ab7f64c964c8f0d19978aa47dec9153e244ca0550. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USME30620902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d2e97cb49c359e9ddc4255b7feb9047ada7fccf7111e72d6409f56d937b7e1. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/USME30620906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8d8b434f683f83db3b600d2d955c58b49f51cb7dd18e20707debecb1579f9f. 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/GBCPA0601133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8863d3bb36d694cd89b3a846aa443a76645108fc1f15128c7e30cfb240bbec45. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:55:34Z), 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/USME30700917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818e3b9c1778427b869316681d071591dee1cee9816ca1feb6be2bb2b16cd5d7. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USME31100518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056c25efb9163bfb095766b8c7d92a7b54f6bfa76b8635d75c2d1852c21934ec. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T01:01:45Z), 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/USME31100519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3508b09669006c8edec66eee1264cf5b933d698bb4472b4135354c320633b09b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USME31100527.
Keep On Rockin in the Free World - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f736bc580d2d1350d6ad96fca5a81144f7d991f703e0928525b4b014c7355c. 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/USME31202904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a97578a5f6bdd61b9fbc8bca58034b0d6e07b153900d903d220c4f8369d2d5. 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/USME31303255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf598ccb4ab9906a9483bc41dc47f8f68e04adcbe917b47df21b45bcf19e4b6. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:57:53Z), 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/USVG21403512.
Redemption's Son (15th Anniversary Edition)
Redemption’s Son (15th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50edfbd148834b99b526e8b5a53abd2290b706f165f57a70cf525d9f38b8ef14. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZFZ31989301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa93c45c93ec7512f9f398127025ba835b5a6015cb08510790c72a5c9c7bb5f. 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/QZFZ31989302.
Come To Where I'm From (Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69971e41c38a698a2ac44e02886833f09a5dae790213077c97eff76d9e793c4. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FXR592401433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40bf4fbaed1735777035e8ac085a427ed9535951231dcf832799d5f16556380. 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/GBCPA0200631.
Rogue's Gallery: Pirate Ballads, Sea Song And Chanteys
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9385efec7f350425b45b22fa027df5ebbd1e93f7e5090975f95852ebab044b. 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/USEP40619110.