Josienne Clarke (1982- ) is a British singer-songwriter. She was part of a duo with guitarist Ben Walker until 2019 when she had a band called Picapica. In the same year she went solo. Music career 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 0xc8bee884e735c089a9621ad17d0e43714c39e4907feb0378b777d61c8f01de02. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4b6944b-e90e-4abd-9431-467bdeb154e0.json and https://artists.proofprofile.net/proofs/artist/d4b6944b-e90e-4abd-9431-467bdeb154e0.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 0x7bf71893809b2590052cbe04f53cee229daab822369b40533bed26b8e5dc1ef6. 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/GX3HP2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b2161de42a82663449182a86575c9fba62006476c6b017e7fbab97361384a6. 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/GX3HP2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c64814d021770cb2c0a2a0db3b31097cb9da6a6e4157d2bdda0d86f5135dcf2. 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/GX3HP2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431af7a87f5486d00ba6ce4d5b2bc74e9841d61b21b1f1a2a00744f0091d71ca. 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/GX3HP2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab830bc9e5c4923c127105cfb47bfa7d6602637599216c489bb672ca1babc60. 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/GX3HP2200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fdb745a723d050dbbbc3aa21c7b723263ec059eaf1ee1400a95baf171f7bbe. 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/GX3HP2200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab6030265200e0eb15f7aed2d9b65037e7c09289bf3ea20de150d0ce3f189dd. 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/GX3HP2200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cef817b18121fe915606fb2f1af8fc3983a5dc95de167fe154abf97d0ef875. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GX3HP2200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2d5c8e4252a71fe708e722266a44836cfa670360d4abb1cdc813c95abe53a3. 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/GX3HP2200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb10ba0fad9e48009da41d5403b57e51ccbe50b085722b561944d3ba50f91e11. 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/GX3HP2200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8467e569b6e714d28a572568317b985151cb139b2addff6ea722ff16d6f6f4. 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/GX3HP2200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bac62b973ebfc5829d6aa65c8b8e9b4746ac5018bf43d30e85abe6fe12cc9ab. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GX3HP2100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7672118c2eb1e75427baf4b951368fbb7abcc4c4033607a4f638e28fd28dc6. 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/GX3HP2100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e1d2a0dc16c4482479838bce38c40acc3d2930024e116cf7efde1613ce2656. 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/GX3HP2100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e1a06010bea754646469441e801d54eec5e85e4a3ca5d4a34603b2d2983456. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GX3HP2100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b768b9fd4075be6824277d1cd16fcc387fd2d573fe93ed5a40d5c1a17a8277. 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/GBCVZ1900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dc34b034561cd6ed5dad42b54cfa856a2adf0b10a8733e762baa41eaf3f5c7. 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/GBCVZ1900109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6177f68a6cfbfef5358e8d38faad56caf9a3b91d865a1f6e50ff66441d06aa6e. 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/GBCVZ1900111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff27aab1ac532feb25c1280d6dda4d3bb292d87ef8728016126874ae5a1fa27d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBCVZ1900112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4edcaffeed220db0df1e8653ba42648aa2e379703759f147c086f772fe1b1a. 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/GBCVZ1900115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7017aaeb193eeae6a50a660e9fe582ea9eac4500d93e1b221f5c7f8604ff4d3f. 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/GBCVZ1900116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d04b6023416ad442e468ebcb88a71070abd18333ac8c181c29910ec447f2ccb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBCVZ1900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896b2478af281b47241f730e977a78b6a3840a6a22ec6c99a4c6d83ab5852783. 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/GX3HP2100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2d5c8e4252a71fe708e722266a44836cfa670360d4abb1cdc813c95abe53a3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GX3HP2200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab6030265200e0eb15f7aed2d9b65037e7c09289bf3ea20de150d0ce3f189dd. 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/GX3HP2200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6725c5720413aff05dcf113f59a4c163c61d3c09c0a6ce0105fccaa8376690cd. 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/GX3HP2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a041390fde51f1f366f385bc5a8e5a06891ce48d4da69dc12a69c01856963ba. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GX3HP2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccd9e4a896a09ff85eefb84920cba24a7ef29f8e301d3a3c06214e9ceeca186. 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/GX3HP2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6725c5720413aff05dcf113f59a4c163c61d3c09c0a6ce0105fccaa8376690cd. 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/GX3HP2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf16d19774717808c85cba1c5aed4c477aa931030566985cad750575d25c123. 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/UK4HM1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f30359c14f2c8c9e256c51e72ad8397ffabb2f18efc5dd1344531220e5739d. 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/UK4HM1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261b3c03ba5f6f9d2a4c98f03ef73b7a89db50d7f97dd6497f807ea45fe80fd1. 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/UK4HM1900009.