Jill Barber (born Gillian Grace Barber; February 6, 1980) is a Canadian singer-songwriter. Originally associated with the folk-pop genre, she has performed vocal jazz and pop music on her more recent
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 0x8489f5dcbfedfbfc9a222bb51af726e4589e226d42abea39fa507fd4292c66d2. 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/5e0d03c4-a305-4523-9a9a-a96f6f57f32d.json and https://artists.proofprofile.net/proofs/artist/5e0d03c4-a305-4523-9a9a-a96f6f57f32d.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 0x47d1394a847d49031ba4a5fb04e08367694594e6ca2ca601863c4a2018a3b9c1. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/CAO371576602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875ca05a86ff2c7bc6b1bfd83134fa4c496c9e89f1e31117fc46de846d4187e2. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/CAMC30700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77018e7a5a146c01e33d4ffa73bd5d6404cf207a115cd76c4117b3c6f6d19fe3. 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/CAO370804206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4020989ca8c1dcb7ba3e253e53d53602fe9954cc04a52782a558c33d7a10dee. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/CAO371106703.
Fool's Gold (Amazon MP3 Exclusive Bonus Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980cb2ae07703396f4d8e48e7571d37d524ef6c86276c13aa7da08417f18510f. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:41:34Z), 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/CAO371409204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f7209e47c95cfcbbf88d44d8733919ade02f3c42beca160fc99d776aa059d6. 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/CAO371409206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb889dae6d1c27682f0404bd696f87447d1cdb00ff24e8062baf60f22e5bf26c9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CAO371584102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca940805d34ec0b61b995216f59a2cfca48069565e1acf2fe98d7bc14c195a7e. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/CAO371812010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481a57e0a0b6fa88810eaac50a3fc5a96f1532aa6defd5507bf7cd69450c51c0. 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/CAO371812005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d031da621ff2f310a821d540caf8ff7fcd1546d741dbc01b57b87e6eacab11a. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:42:18Z), 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/CAO371812007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc375455924cd46a92fad52eade6f923a0d4df54678265030afffdc0e5528653. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/CAO371825001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01cc37a09cab7ac590d15a195b78cf59c08728ee426415f3fa35ec6c0db9973. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/CAO372013903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa693073d7dc286046bbcf2b80a816a83bbf003735cc8c8752031dfb4912dfe8e. 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/CAO372013912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b254897930a92d0cdabd2927ded24172291dc2539c80477307d71093d851245. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/CAO372013906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5cf1728c8cee7c434bb901f501838145bce9b550e3acbfec08766bbb107a5b. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/CAO372013908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ec725143af80bfa9949e44ad40506c3679e426a17d2a5b34104f9c3fcb01d0. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/CAO372013909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476c14925cfb1f0a8d306a6ec232d75cfd555b3eea12211148e5ec9495a061ba. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/CAO372013910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa740bb06e028a29ad6381a9915744a00aabcac12a03ba53093812ab16a452cd. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T19:56:39Z), 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/CAO372218901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef33627e5c084f69fa10b6aba81b67d9590a1014f240dc987f93fb207ebf90f3. 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/CAO372218902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd037e4a3db8a84fe79f6196ee7281bbadc2afef582b480a850d6a8ca6c5d18. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:47:49Z), 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/CAO372218903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa941b0f683cde5d300b3ca06eef45be7895d84062d79ac95e79fd373f6f570. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/CAO372218904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999aff5e340e7c90f614130c09e49701c68f83fda6b69e5b9ee6809936b880c7. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:07:38Z), 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/CAO372218907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9ef2bec19eb5f395e3ee4a115daf4a4dc6210eb87e8b0d19f1d0766d0ee87b. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:42:57Z), 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/CAO372432105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17d8bc254db8a70bef107cd19f1ed18e73e0717cb2bac1f35419059bd2cf4e6. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/CAO372432104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ea96d36b72f6903029c7c875cae2554bec3abe5e202547fe32fb2240cc3450. 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/CAO372432108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f7ff4375e9a133bc12f05d40abfe87d2064253f27cd2cba5fe86c5a22e2e68. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/CAO372432109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ea04fc63b167a7cdfd80a5c6369f97168e946ce80631043e7e0ce64d2be675. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/CAO372432111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abfe7abfd7886efe4c9175333d1cec5ed17a95e26a5326d2bc59be9a0696ffc. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/CAO372439703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754d93c38aa3f738f36fac28a5cc343a693175023f1de6e9cd1a247f83ddf198. 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/CAO372439705.
Songs From The Gang - A Celebration Of Joel Plaskett
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3168918d31511063ea226dd6682c4bfd55739775adcd6f463dade7769c014de3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CAT222480175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26450211c3c153b3700a1fbe13c9b21b1fa9158d0bbf80c80f82ced06590a502. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CAE6D2200009.
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