J. Bernardt is a side project of Belgian musician Jinte Deprez, which he launched in 2016 when his band Balthazar took a break. His debut album Running Days was released in 2017, and includes contribu
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 0xa58bfd72363668b6a00cb6663667524a2c587323b657044bfe6208f3393bfed7. 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/855471d1-d6b5-42b7-bf38-62b4ac27fb28.json and https://artists.proofprofile.net/proofs/artist/855471d1-d6b5-42b7-bf38-62b4ac27fb28.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 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 0x58c8f2e02de2a140a9e6fda5d930259e36bd7b072b77507945a100b07229a77b. 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/GBENL2403842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83c91dfab746314da7ffdcb52c491db65b21a672683d192ac8bc3e652ad8804. 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/GBENL2403843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d01f75da7acfc922369f6a783e4da7a189db6da7e1085d92632577d2931d87. 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/GBENL2403844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49d68a169bd2f9c660df309541f1a757c25de8abc5998b3b7b7058088221634. 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/GBENL2403845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5a10844c72057d71c354b73f105101197df4310b06b7f5bb1516052fce9cf8. 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/GBENL2403846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ec5ba083719e34c105a4c125f7739122cf748b80627d7786279fe57e8b4620. 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/GBENL2403847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5d961ef3369fc5f1e54b27c2f5f950cf1259ee1b3a747af616e1533624a477. 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/GBENL2403848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36864045144a45f860af3298c2a343718ffd8fbe4662f1e29558312020210c25. 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/GBENL2403849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59993aa5f5fe641814833e59ff841c409beea0048a2d42c6fe20a72ed3f0ae2. 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/GBENL2403850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511f0ae0562bbff54eee42720dd3635b4ef520c1e86636b903b286451a522b45. 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/GBENL2403851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e843e5213be0bb3ea28ec8babea801b229db9533d20b48fd1a82a56f9fabbe. 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/GBENL2403852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68938658542dcd3b5eb5e293e58383abb901a6fded8f39738f972c49ebc9da92. 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/GBENL1701893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314400de4827974abe08192955039e2faa41bd31a0ada7429e90ebc82817c0ef. 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/GBENL1601757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c34ce1af3821318b5c1f810e1e9506e9bddb20eaddc85e58c90a321f15c091d. 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/GBENL1601770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f92d7cb907b0f77813d01e868bba0cd6786ed412100955f37cc7bd04c5bd986. 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/GBENL1701894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccd780169119d1dc2e578bff5f14ae55c99706bb0503869ad0ad8c69e336add. 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/GBENL1701895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc437945bfdb754a3a051a0ef93626e96c75ef7deebfc78136dc7e0241c7b805. 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/GBENL1701881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed94c404fc5267fce3df05fc711641e08b6abd03e6054741126b0d42d878a26. 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/GBENL1701896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc88ef5154d15ad5c944e68bff4eb1aa3c51efd8a1cc322f146a75baa72da577. 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/GBENL1701897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b99816e97ab834c5b898093d18e6de7439f67e05a55687521e73d09886fbc9. 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/GBENL1701898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c38afad3b02483dbfbff0e2339dc023e1ef502e8fdb898322ce0eb5c9b4db8. 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/GBENL1701899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49d68a169bd2f9c660df309541f1a757c25de8abc5998b3b7b7058088221634. 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/GBENL2403845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5d961ef3369fc5f1e54b27c2f5f950cf1259ee1b3a747af616e1533624a477. 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/GBENL2403848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83c91dfab746314da7ffdcb52c491db65b21a672683d192ac8bc3e652ad8804. 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/GBENL2403843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ec5ba083719e34c105a4c125f7739122cf748b80627d7786279fe57e8b4620. 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/GBENL2403847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5d961ef3369fc5f1e54b27c2f5f950cf1259ee1b3a747af616e1533624a477. 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/GBENL2403848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83c91dfab746314da7ffdcb52c491db65b21a672683d192ac8bc3e652ad8804. 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/GBENL2403843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ec5ba083719e34c105a4c125f7739122cf748b80627d7786279fe57e8b4620. 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/GBENL2403847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245984c857d81932281f49e8c61265f6e1bdfbb823b023d3c7b22c7f120db70c. 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/GBENL1702061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa1d09772ca41754d53f3fc940e5a68f775d3236a70db480a822c77aaba4afd. 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/GBENL1702048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a93e7db85e0afeaf360f45cc2ae15dd9d9e723dfc939bae9bd6de924cc2fda. 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/GBENL1701963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de1edc101b26bb7d570f19764a37f90a0a6ee3a08d5833a35610ac657954a60. 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/GBENL1702049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690a2ddadd6ab54b5ca02f14aa8496d416fefc9c0f606d9b55369b4cd6acd355. 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/GBENL1702044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00f52388bbd9a5dab2b66d6a08a8ff6576a8f89d665d3aeccfb3b170e4fd63e. 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/GBENL1702045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f92d7cb907b0f77813d01e868bba0cd6786ed412100955f37cc7bd04c5bd986. 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/GBENL1701894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68938658542dcd3b5eb5e293e58383abb901a6fded8f39738f972c49ebc9da92. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBENL1701893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff2e6f19b635cb6f24b84ae7eb0de40c0256cfe3cc75a30d12dceb032ee3e0b. 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/GBENL1701867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314400de4827974abe08192955039e2faa41bd31a0ada7429e90ebc82817c0ef. 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/GBENL1601757.