Jesse van Ruller (born 21 January 1972) is a Dutch jazz guitarist and composer. He won the Thelonious Monk International Jazz Guitar Competition in 1995 and has recorded several albums as a leader and
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 0x6c619936d0c85505b636a39d20245e75628f157a9efaa6bcd3d745aafa352d4c. 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/9288ead8-883c-43e3-aff0-d002ce9a203a.json and https://artists.proofprofile.net/proofs/artist/9288ead8-883c-43e3-aff0-d002ce9a203a.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 0xb6f8ee41ecc7c352672fabc4436c6a0fffdcdea5ae6de91f555116f834d4e0fd. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPA490400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6718bdb8380fa098b9d9cb8bda0a731b6980584f29f4c5a0aa384e9119a4c494. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/JPA490400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2873ff5633a3928df9c2965a6a2ba8cced9ab9f3cc58c08f853e312a7b5ded8. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:38:52Z), 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/JPA490400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabf27e4f9f6cddb5b44da126169981cfb2e4270efdf26e4c44be9c33c0e6efc. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPA490400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac392af3f8f86aec9eaf4972d633f0ff31b0fd6bcace11de2f68905da1b0b23. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/JPA490400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37aad24c85e3097da4ad1f0fb08b86a12d5a972759e814bcda2f064afcba3ab9. 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/NLD3E2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0b41ebc442345628ec697f1361ee3624a3ab7630e2396772b789e09f397d97. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/NLD3E2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57768311d93d0f26a79c05e1c9122cd3143b8235dd72b539ffc8c8b61c7ba083. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLD3E2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b35c53cde34cfeb205163245661da705975e029ca1241c4ef5fce3e6b09a324. 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/NLD3E2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31be4479aa7d3c438b0b8a9c5d83520965cd3e0dfc9e0d1dbfedc50a66dafdc. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/NLD3E2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3520540a985bf23c363038ba569c5af9340b16cb64727f212a4688761535af. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLB159900433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e793480da3ca179e86b64113bbdd2f7e1d542f2fc3f22438a4df9b2dad8192f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLB159900436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a10fbe5943e63a21432a6afcda8bbd2ebb348c2504207e6b172eab586433760. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLB159900437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7701f2ed524b32c78927f180ef4ebb6c2d539b7c4c3f78b32c0c5a87a1990715. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLB159900440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ec45d7a827488785f2d92805847d7a5a8fba9d24b1942e390898f1e5f6feaf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLA299600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abbeb5f828da90025a0eec490710bb4622d460d2c1e8cd6fdbf822120f38055. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NLB159900430.
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 0xb1fd1a5b5c4ba74d95c412004ac4941736a05fe1d243904adfc57ca4d59f77d0. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NLB159900431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d1c5f503a3aea6719c51b67f2ae9304f6a68322ec7a00a235819e62c65ef5c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLB159900432.