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 0xa4a8e5d89d87bff42f07223bdb469921833076d01591c1a52520d1c9b9a0c504. 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/720552fc-a083-46dc-8a60-eee0004230cf.json and https://artists.proofprofile.net/proofs/artist/720552fc-a083-46dc-8a60-eee0004230cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Shall Not Be Moved / The Green Leaves of Summer
Christmas Favourites - Kenny Ball & His Jazzmen
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 0x63f1ece2d7fb0e3aa60ede942d9c34898e258b8df763e88636100b6191a46432. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/GBAJE6300096.
Kenny Ball & His Jazzmen - Their Very Best
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd743c48ce4c70adb9bb4afb11f625f46d93d891f2d880dde2e5cf7a2f7b86c0. 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/USA560787812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f39876a85506dc699fbf5aedc23b6593bb59860c42d5d02b2dbf57001e060f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/NLA410812180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec79e9e26ebae43d8f70d63f9d1062aa5598830c639a2bdeb068172494deb01. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLA410815817.
Midnight in Moscow, the Best of Kenny Ball and his Jazzmen
The Essential Kenny Ball - Midnight in Moscow
Jazz Infusion - Kenny Ball and His Jazzmen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c597cfa9ddbfdc6e37bc1544383542b8c7ae7049ec7d7da08e32eab1274825. 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/DELJ81630905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10eb1a5617c39323e4638a442e1f0996b613e1d0ff456ccc960fd37db713fa16. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DELJ81630912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0023c3b40ec3fbe3ec59c69e5e4ada9b72627f2221db5e0d71c6475a47ffbd. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/DELJ81630901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7cedbebb22c2a83aaccd3f80f108cbf7c94cdd746adc3fbe7ecf14f176818a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEKB71598772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5d0f59068752456f6b46ab0b5927bf21a245630d38181edf1629a993cb52b2. 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/DEKB71598753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2e340e71d58da9e5ba0b75c781ad8907276f431cedefc2acea34d17b83b508. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/DEKB71598754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe070d846e44213a69bcea0372fef6972fab13b5b9da901bbf8ab6aa3c0f0aaa0. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/DEKB71598759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7c0080ac0dd3b3db3f3a0d43b5898b429abf35897616bc7a9642e651c2689b. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/DEKB71598762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f33355a5a73dd2912889e53fa4749ad7b7a0cf5287bf5875d14e6a31e677728. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/UKMUY1700262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc603dc29f6d2994c7d778ec49d265dad72252d5757ae5ebcef80b2036bc942f. 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/UKU6H1956726.
Midnight in Moscow - The Best of Kenny Ball and His Jazzmen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3fe41296212e78bf1e73a2ba6832e0ad36c3a373f69a4447e61f664550c507. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBGQH1923025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81599b46e2e97b4d9f7e87baa71b64b74c18548fefd45df8e73893a363be6111. 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/GBGQH1923026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b4c027ba6f8cb588c6f4fa42b4e79d04c302902915e147dc0cd4dc908007f8. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBGQH1923027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d14e034d04350ded92b99d65ed4ea4a8d59eec8a24f8cd4b0c30404a4916b74. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBGQH1923032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe146c136709a73437453d6268c99d0882a40df6de89f6f4dd31501a4c76576. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBGQH1923034.
Remastered Classics, Vol. 52, Kenny Ball and His Jazzmen
More Kenny Ball and the Midnight in Moscow Jazzmen
Essential Classics, Vol. 269: Kenny Ball & His Jazzmen
Lighting up the Town - Kenny Ball & the Jazzmen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089e9037ca63978401913b88a63f7db197fca1781050b13a94f24343c72bbe42. 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/GBUM71111409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff9e409d49cf62878146c776e0b85b9540e35ced7506634e855ce374444981f. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USDEI9304106.