Jaki Whitren (also Jacky Whitren, 1954 – November 24, 2016) was a British singer-songwriter. In 1973 Gramophone called her "Britain's first serious contender to the contemporary rock/ folk throne curr
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 0x4e262a0a500bc8cc634d631936193bb1633e247b5943f95e887e6d9f8d07b9dc. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad0bb635-81bf-468f-a2f3-f6ac821e4366.json and https://artists.proofprofile.net/proofs/artist/ad0bb635-81bf-468f-a2f3-f6ac821e4366.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 0xd6a0f7b0dcc11b6e343b988fc50006c83fe164cb028eb40052ad7f1b190eedb2. 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/GBJX31304101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0b4b3993413ac87d86d220cfe7eeaba99557ccdbe5a7550a1ca8b812550e6a. 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/GBJX31304102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a7ebdba146051b15a8d43ddb6cc18de358c8dc76ef450913ed8f468f7d8ff3. 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/GBJX31304109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2017a0966edc07ebdf0d1dbd675a9d134af11bbd4a9ca097046a79be26123f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBJX31304104.
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 0x3996122b8658530b74ba2c05ab8ba4fbc6a730c9061e45f97f933512a0c0af39. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBJX31304105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbcd6ce602f494d12f260375a0feaaa4490a79c1dc5c46eb2ba9418e1fda4e3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBJX31304108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e614ce9d00f1492881517ca68b48849408ce0b0ec110ad29b2c12672d8f68f2. 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/GBJX31312101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4204b32d903dee386f0dca592b4637ee0d2fe775adc597d056b57ef4619edd. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBJX31312103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdd6841dc261072f6e863b588a805affd5679c34d7bf9ad5030a42f300262c4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HRA047467987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe730043aadc4da0cd44d5223e79ee8566ffcd8cafbe693dbfb831aab4ed2e1fc. 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/GBEQT1900499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7f2e94d8bb585d8d0c452436c2ba6f37fa02d32548eb56995318317746db51. 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/GBEQT2000113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4258eaaabcb9209eed0b3537ed3428fbb46df72ce6af98d3988fbc80253ae0. 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/DEZC62128169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe266c305126a6565920a7a77ad8a153e63845e631ff470cde5903a8a4dc45c19. 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/DEZC62128174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f784ecc7e748020c5d2927735922ea57184cd44fd68bdfab12c84f3491e72c6. 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/DEZC62128175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80c27eca63f569240f3d2bb592c56acbbf0502ea9217a5e107e25f9b8ec43e5. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/DEZC62128170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e01af206101ea77bad363a988992e9fff66b5e9aca3546b26181fb016c4a829. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEZC62128171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd86825dc81419fd250607e171881f52cb44620a18ad67286e418bc939d9325b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEZC62128172.
To A Friend, Through A Friend - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefa7f3552ee19a7c194220eb380da78568e7c2d236de30710024b38497bf968. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/DEZC62128173.
As That Evening Sun Goes Down - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd331d7f091eb9f2ac29bec8bd75056effab96eb977732dd75d1a652c866bf7. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEZC62128178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d31d69094bf1480105b7d155e9a8ed5ecea51898ce15f0de5e86dd9dd0858d. 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/FR0HS0700690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab8d53e6ccc8d2f73644aed6e0a9e4b712e360ecabf61bcb8cb2a1075198a87. 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/FR0HS0700720.