Eelke van Kleijn (born 11 June 1983) is a Dutch producer and DJ from Rotterdam, Netherlands. He is known mostly for his electronic dance music and also produces music for other media, such as televisi
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 0x8417c6093dc56346e593adf1f0a05c081c85166a2c94620bf9e7bce3c80c3117. 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/af9d78ea-74bc-42a7-9ede-89dd132c9986.json and https://artists.proofprofile.net/proofs/artist/af9d78ea-74bc-42a7-9ede-89dd132c9986.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 0x2ccfe0bdb773e895b7cc01131f963c66ed92524558a04438a9bd85165775d744. 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/NLF712309082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984e4acd01561c8201f9eaee7f1925edee505675721870b08ac86d186a1f2121. 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/NLF712305330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99a1c5af53ad8cbd385bc4f272b46cc486accdaaff86fc2aa38f59165e6f555. 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/NLF712209057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3697ebce45a263f531686d4c13fea238fe00b4718067a70dc8b6d5fa97114ac8. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/NLF712209059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86292e3660f51c77da5cf104b41eb13fefdee318d3e88e209583c5b86d788f43. 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/NLF712209061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cacd35116bad16ecd6603ef22450a13263eac0b071daf418d04d5eba53c746. 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/NLF712209055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00636669629609d4ba75b5128536a8d7a71fd347a65d72a9c7d2711ed2778b89. 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/NLF712009708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f4e45d4a5ce8d5edfc691c3eaec31673f13352d15d8ce56f736444866b5333. 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/NLF712001950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b766737783902c651f6027b4d30ce2a1b156652ffd87504a303b317b5f996e. 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/NLF712006655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1513e9ab5ff3dd471e4dd9f66069568563d1a74483ad95dcaa21cfa29f456db. 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/NLF712009711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac66d0f432aab2903d04881748062a1b245fe79ba426278d07d519576966b853. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/NLF712009713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8e982266d90f6b40c5ec85f9a12478cdbe0809a314f3cc1b0d67767276405b. 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/NLF712009715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7baa531022621c5b7a0e4bc6bede1487ecd0c4ea5f059e6195b4cc652c4db10d. 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/NLF712009717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2116c13e40b6a8ccfef45671f285e544f6f9af2157c15c849b47e1c3faba0029. 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/NLF712009718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4113cd72e870281fb872d9be17727cfca59061e70087e5325ff84ada960161c5. 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/NLF712009720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c231787dcb598f5f287e5add189df33f5bb4bc17c5b76b9e6097e7a41cc8ac. 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/NLF711700300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56757123f7b088fe7f30d243eacdb73522e3c02e36fc807669717669dd9a817d. 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/NLF711908562.
De Orde Van De Nacht (Pt. 2) - Raxon Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a6e2abce85fc1fb7f1785c55e35389e5d71cb9bc67c2c8750b171993950e02. 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/NLF711911187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dff05f319f72e7428e60a0ccdeef8a14ba94f429732f8c396df6385fca3001f. 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/NLF711903189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ee0fed86d3b113f386aae0c4e67bd26b45b09093ac33a1f2b132d375e0aa10. 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/NLF711810982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d1d23d660ef51a8ad9853901576c1660da93a952bb6bf046c2dcea02a104fd. 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/NLF711808844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79833ba0dba981248f6f1f815c021149c870985d616141c8fd9699975ba4193. 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/NLF711805777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ba05e31e2b20f6a256dc0f60756b58fd34082ece850f34f403f82e74966e14. 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/NLF711808854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb153f553d1abe49f17b02e7995207db81c6f8d9c44a6c37f6a737abd25fb9537. 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/NLF711808674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90258d3fa8f9de8d4756752d546b1a1be96ddf8069a1ce8eafaf4431ded34a6. 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/NLF711808858.
Self Control - Eelke Kleijn 12AU Cosmic Aeroplane Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2042a91679c92474a116400c47996ce86bfa2734836163e5febe75f22e700ae6. 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/NLF712301584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094ac11736db53e56dee7286a16e52303ec6dcb4915b5ba25f9f70353d057664. 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/NLF712208853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124f09498858f53f5c4668e1ba6d4d8f99a7bc958a2765f5ffe536b8ad87f29f. 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/NLF712110540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2b1e3044071dc11ef7e0f7eb0cbca816165fc1d6befa535eb84e748eec6e17. 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/GBJAJ2101681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea07df185de984242a35520f79c4502ef81cb88144ba9da2d69cc36b797c246. 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/FR96X2114482.
Woodstock (Hernan Cattaneo & Soundexile Remix)
Deep Inside (Eelke Kleijn Deep Inside the '90s Remix)
8 Bit Era (Nick Warren & Nicolas Rada Remix)
Transmission (Mixed) - Joris Voorn Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bebea8e2372c0e9d9c7aae06caff294740fdf203b8e6e40b5da05ff1732c7c. 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/NLF712209716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bcf78f5d64647227af56d9e2780b8a3d8733e007abd00f6baa8cc44ae240d3. 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/USRE11900311.