Lionel Bart (1 August 1930 – 3 April 1999) was an English writer and composer of pop music and musicals. He wrote Tommy Steele's "Rock with the Caveman" and was the sole creator of the musical Oliver!
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 0xdbdefca70698d2b8047a43c6bffd24d152a0f9602cd6cbf424cdd03bd3ca3956. 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/024d50f7-8a81-4769-b315-337d2e75a474.json and https://artists.proofprofile.net/proofs/artist/024d50f7-8a81-4769-b315-337d2e75a474.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 0xd327b98d24c11fa8119803d5914459d22f59838e62cd3fa222965f166f02d2f9. 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/GBF076020350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670c1fc31dc30989dbbae93f71c25c6767bd38eef2f03bdd5efbb939cdd2edeb. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:45:13Z), 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/GBF076020360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f75336cdcc9d1dd6923201ec80dc6bd7bd45c0d1fbdaab45d6b4061e4683656. 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/GBF076020370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544ed153b5c3e4ce96dc1d3f5970e0eeff08e148ccf577b856a7c0ae23e2be10. 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/GBF076020390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f541c63b5a7ab5cdb58b7df668be558a945379870efac678b6007b7b1469c0. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:01:57Z), 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/GBF076020400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c2a62b8ad9e5b027953e1f5be5a9f65f229f9692359f3dd3a1c27e1aeb7b90. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBF076020410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6d03cfc7a0218243a9c888e321a9f526f8adf64078ba4b355fb7572c5673e0. 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/GBF076020420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d6ab41eb5ccb68e0175f4d1f03c5181e54875a5e880b2a0809409ca03f65a7. 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/GBDGA0301723.
Oliver! (1994 London Palladium Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0726f23d9c7a4ce4cc66a8e81631994711314f3cec939d1f8b9400f73262e823. 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/GBBKB9524709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbf3e55c976d78aaa3d1abc21eab18ea510d344fe78c3d6dc40ac23bba77b92. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:53:04Z), 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/GBBKB9524716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90252e0dcf58650d5322d78385dea58d2406a8d3fe452773516bbafa8e09f9a0. 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/GBBKB9524720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e84e1d4eaac003cc60714e26c8e853b76f77e823e029f63b4b5a3cda0300f4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBBKB9524724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af84b739b4c0ff1f8ea9914fafc3bf809db7a27e00a66ed93164c34993fc1bd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBBKB9524726.
Oliver! (2009 London Cast Recording) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ee23ee55348e3d6b36b249007eb73a829130844c9a4681281d7d798c1951d4. 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/GBBKB0920501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37c2695971b1dc7bf4cfd18520c8f0aba567d95c3a8323c3fe94d6a36b50450. 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/GBBKB0920502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2337bb18312f0372c9eaea44e82ca5b894fcbd9c522b5b8925ee3eea4238e8f. 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/GBBKB0920507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ada2b4a4442dcca7fc41071c99db733fc9aa323b752d872495fec8c49afb2e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:02:38Z), 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/GBBKB0920508.
You've Got to Pick a Pocket or Two - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656f3d63ee8824ed3df7b1d4398eaa21dc942d7a1c9526065ebfeb9df9b45e23. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:12:46Z), 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/GBBKB0920510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d3b61bf0b9b8325c6594b8cbb73fcd39073f58e09949afc61304ebe19f2a89. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBBKB0920511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c5391e8d7e1c5d92c6d80453d13740b37941e922faf59d863e9d9b5daf3202. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:14:23Z), 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/GBBKB0920512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15cd223582984b9a52a74e06d61f2803b5019837875f1b8b204686e6c32f12d. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBBKB0920513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85515cb1e82672a072bb3d175a4b83a31f62f4a11698188658bf0787a2641b8e. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBBKB0920515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd1591a5b883ab4804f9957ebd07a91f532e61c934a8bf99789ed1e449712cf. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBBKB0920519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba42ace4ceab69c9c2cc9f190d4a06fad666705c0298daa6128125aa07243639. 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/GBBKB0920520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c41ffa1ca4ea4ce148e6f0fdb67eace2925a809d78b1fe746219be1ae3583ad. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBBKB0920523.
Oliver! "Original Cast" Oliver Twist (From The New Theatre of London, 2013 Remastering)
Food, Glorious Food (Oliver, Workhouse Children)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4851a25881487086c8643839ae99572c2fe848758926ece38981676c1934d42c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:57:49Z), 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/GBAYC2402216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901662448a04dbbff3ff100157750f19029e2f6b2316cbd336005f7e77be7454. 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/GBAYE1102186.
From Russia with Love (From "James Bond 007")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72229198b33017213614ceeaa41ea89a3715242720d45cfdc837ec263473c663. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEU901501064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27614b4bf1d7b697fb0ca0c71b1918a86e3d9cf397cfb3d840f6a4cca57cb49. 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/GBAYE1102187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cdcfcb39247ea4efc034d763c43281a9b5f8b002d2855296120a917d800f31. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBAYE1102024.
From Russia with Love - From "From Russia with Love"
The City of Prague Philharmonic Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ba3942211bca15fc24bc754b10c225c998a01144b5e5c2222dfba82248ea3f. 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/GBAJC0900451.
From Russia With Love (From Russia With Love)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931dedcbf0aa7881ac6413e099adcc51c73db518a3f19d23690caeec5483bd75. 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/QZ5FN2309764.
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 0x9d57ac58ae2e448b63accb9d5b341ea72e5937f02b16edf6139478e481eebff1. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBGRH0800049.
Reet Petite - New Music for Flexible Instrumentation - Demo Tracks 2016-2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77092ea526ed2a449b4afcfe54a67a96e48394053b28e70d0393df660a591c35. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/NODGN1607100.
Shaken Not Stirred (arr. Nicholas Buc) - Medley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc246755d75f2d3cea601a36f449279486e1d020bc508e075ef1536dcff47ce15. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/AUAB01650701.