Jochem George Paap (born 14 February 1969, in Rotterdam), known by his stage name Speedy J, is a Dutch electronic music producer based in Rotterdam. His breakthrough came with the release in 1992 of t
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 0x3d3896e4b09f14409e322cd1b323f4bde7fc8728086544b66cdfd48fbe22e9d9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4044969-1910-44b2-a064-ffe102890d48.json and https://artists.proofprofile.net/proofs/artist/c4044969-1910-44b2-a064-ffe102890d48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Something For Your Mind - Recorded live in Berlin - Remastered 2021
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 0x97e8ed99dea340df9ac482ceb0c394d0a7db1613e3563ebca8a482bc65419340. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAM269180035.
Pull Over - First Remix - Remastered 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb024f2927ae5a8fa5067ad05e39a291808be6e08e12718f480ab7b6b8ea82ee9. Chain 2 (Bitcoin): anchored in block 957826 (2026-07-13T08:56:09Z), 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/NLFC82200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc325f2f0b25b9b442266120e2a1e0573ce96bb149b353ef6d235a81ad66056. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:44:42Z), 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/GBBPW9300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7192e057e5fe1550f9c209a4acd2823d822601ee1d10473fa87eef358eb68f. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/GBBPW9300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b35a844ecff3401e761f63d4779f529b27b5be83044ae810c87105a912468dc. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/GBBPW9300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe155cee3950c614a39aa4e65d5e5495796b872b663472d7b9b8ca5a4d996897a. 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/GBBPW9300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199ae6f14770f98e077f5e0a93d171e7d7587b522195c6170e08378eeea69f77. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:52:57Z), 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/GBBPW9300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb67dcb8eb676a9f7f880c19d0dbbc5340b0b0c97b99cde6d01d921f0e71cb8. 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/GBBPW9300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392e635f4f55c3382a6fae373710c8a76b578c40cea542452e4bf07bd4aa67d6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAM269580025.
Something for Your Mind (The Remixes) [Remastered 2021]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5d2d6313198393d09caf4a65b4079043203e1101644d1a71c19901c41a0604. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/CAM269580009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8724e92178fd4726a5ef854959ca2577df98fbae7f8ff4129f16dbfd78d52f3. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:36:33Z), 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/CAM269580008.
Patterns Remix / Pannik (Remastered 2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd469fbc48236602db60c9acbc37b85cbeedb142c2411c6aa845014d999452163. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/NLFC82200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe2a3b5c4d3c3ada736041e4c37dc571aa3e7748c0568691a923042c7e840a6. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:27:51Z), 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/GBAJH0200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0a04e43280a84bcc8a45c3334c766ee4527ba38d03f5e9fd79d3d2899a7289. 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/GBBPW9400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d80fefb4248f7e61a9d0e832a54fb9c7c653b48b2e10084bad3876892acb8c. 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/NLCF82300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87de9747e7902be986885a5920045c2a54b96cc8095ec869d61d32860e6661f8. 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/NLCF82300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e03ec0d25278cad9367b5f09bbc77672fa5ed2a004a75f60d8b6b73652fd0c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU2229468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75ce785fa247d4463c6b42b70955e531531b1be77877dcbe6d6e0251cadd43c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU2229469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf815d81abe21b345b5095a864164f5440722329e6d0b31380adc053a3ccbb254. 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/GBKQU2229470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5195dd02b842e7074fc494dc3335713db4e0bc3f5127926ee5a682f356b379a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBBJX0291108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8455cb19f57a65ba47ef6a6e3cc464d1285f3911433806717a1114311b44d9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBBJX0291110.
Noch de Sterren van de Hemel - Speedy J Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5932b2a2065c8be15d5cf5e32bc11dc51c34cf0f78b7eebf82219129bd8e7780. 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/NL1GH2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3105e90f1ee20d206d1edfa1ebea293a4b7350ee4167157b400113c71d389fe. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/NLCF82300061.
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 0x96ec04251944e8729149395927d15bf81988de7605201169b77d6098e6afa943. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DET751000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a93f2c6c4ad1e419943693b8ce6c1dda0d9a23fd203897dc5ee08de605da12f. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBKQU2229471.