Jean-Luc Ponty (; born 29 September 1942) is a French jazz and jazz fusion violinist and composer. He is considered a pioneer of jazz-rock, particularly for his use of the electric violin starting in
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 0x08e043dcc0d27014845c03e1cdced502b3e422db3815ab48f83e11072d24f6c7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c7d4d8d-4992-44ab-ab54-1d7840a6a63e.json and https://artists.proofprofile.net/proofs/artist/7c7d4d8d-4992-44ab-ab54-1d7840a6a63e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Individual Choice (2023 Remastered Version)
The Koln Concert '69 (Studio 2 des WDR Live)
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 0x1cf75dff23dd748f617ae35d999142ee9421e3aaf4e92725626aa9b0ab3cd75e. 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/USAT20000441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f71e25a554c1eb07d2c92db7051bf09b1595f0b39ff85b1d8a164406bfd2d3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20180837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400e1e54b72e710c979471773d3fac0c18b0811f38325347725880edc1a8a2ef. 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/USAT20180838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ce8b091a68a66ee4977a21d594320d81cf41b78fdb35ad402b98c1fef19e0a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20180843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a3511c0391f9bb8ec159fe5ceaae486bf7dc00da65ebfb0844b4ec7748f311. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USAT20001232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc693edeb99534d2949dc7f8d74a3687af539495cd6f9ced99ae578b363f3566b. 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/USAT20001233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92adfe3a55da97b40fe5ebeaa9b60d602df4a063993f676968626de6fd2e0fdf. 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/USAT20001235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f856dc128f86f32088af8d91d2954272a567dbc625ad6ed3b7a0c8043daab78. 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/USAT20001236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48c112615e7bb0069bea7acc945fe4dc4c76071524fd0bc636a96498de76b8f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT20180803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec0b3316ca3b096b646d19958b893a561f560deb2d0ad289f83358f6bf9255c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20180817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a752ad401bd75abdab364423057840a0f350152b3bccaf9bb8156b5758954e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20180830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0193f499b9c9b1fb5fe200263b15f54ec6225ea1fe29a1cea59b5a27ebd5caa. 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/USAT20180831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798a7a46cdb287dabcd8768ca2558432da9a218adfebff3bafb7c6a0f87fe49a. 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/USAT20180832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad68b5619affb7233011543b82d55c55bace9740095191106957219986af870c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USAT20180833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb99bef690285b3e92ef6cdbc8ce1e0292bff0debc6c2426bcc18608663affd7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USAT20180834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125fc45ec709857b5ed024a730ba7191976f6b635d4d969d60af6188251283c0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USAT20180835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ac45b0c642f360fbdea3a7be0d801891e826b2a26fb00b6174b1673448cede. 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/USAT20180849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7660021eee9cad8094f8d3659e3ceac33b765cd6f4d94fbf12cee27a3368da2a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT20180850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5931d8ec19b2918223e86d359b8778906ab612ebc9b4b2caa3da62d7f3c1c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20180852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bba9f1efec2eeecbad858da3417607d43d817120dcd852de23181273c1fe9b7. 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/USAT20180853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1004dafe0c88982f064aeb5e979793615f429688a224e99bf9065718efc6b6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USAT20180855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97a1344481866c77caef89bb72671f4c8421ea89fe61c15e9747abbd7b7e5d3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USAT20180856.
The Struggle of the Turtle to the Sea, Pt. I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7791ef5acc34e4273d6ee77fe55a81f57e2b74b1b5177356f83a6c7863dc24. 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/USAT20180857.
The Struggle of the Turtle to the Sea, Pt. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc159a682b5ca9bf55383d23156983a11dfabe91186a21e4589584643958be6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20180858.
The Struggle of the Turtle to the Sea, Pt. III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57cc148d1205283b05341d5bbac593985e5e3b2ca05293b406d0b0b1ae01d03. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20180859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b17f1c759ff82d9c254eab26672bb554ab74ad92a2e6807d299e16e9024e4d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT29902179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090510bb3aa6afd9710e5af2c3a1f799ebdf06b68e588e5b26b67406e498a331. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USAT29902180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4e75f0f1ad13c279d8d1b579ecbe96c825879bca1b91977dccf71a74766eac. 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/USAT29902182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaa8b98961d41d8c4a042032fc9ba7f382caf794e8a18ed867657976470e2e2. 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/USAT29902183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3048410ba3ddcb133df2f9227467b1833dd526da377e486a59731e864e833a99. 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/USAT29902184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9480f305cd46b7fb1da94688eb0554dc56e3322b248591c02be1b9c8afc88a06. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20000433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62869b7c8548eacdc60ff4cb0e4b1e3e19e9c2879571c403a05dae3147e0175. 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/USAT20000434.