Three Drives, also known as Three Drives on a Vinyl, is the name of Dutch progressive trance producer Erik de Koning (DJ Enrico). They were originally a duo which consisted of de Koning and Ton van Em
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 0xe3b6e121ded25989a0438b141f4291ef538cf5d27b267b105270fb7d46719e34. 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/5c04a093-9f9e-40a2-adac-078902b48996.json and https://artists.proofprofile.net/proofs/artist/5c04a093-9f9e-40a2-adac-078902b48996.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 0x53498625f27d6a50b74c1e7a264f5865917d62c03a563deeccc88b0fd138e063. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLF712205623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe47d2818793389629b5e5f8200094bbfaa45923ca6f2e0919596bed21119ea. 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/NLF712209711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6390f5fb2f6c5f239d27891f324f3a6d52aa2dd39d2d4adfc71bb53a919de1e1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLF712205622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b9aa9b96b54266345171116050638f3fba75dbbfbdfd16b2d7fc5c06a48bbb. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/NLC050800091.
In Search of Sunrise 7 Mixed by Tiësto (Asia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83837c4af8ed4caabd7fe94388988525c27c78fd789959be62181dfc2eae8768. 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/NLD681803055.
Magik Seven Mixed By DJ Tiësto (Live in Los Angeles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23e5baec360a1e783471a2b14f369add72793cdd7ca06646849a3feb1663bfb. 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/NLD681801933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1a0fd9e03926843433a86585d379c29db7c86202839f54b01c730674931589. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/NLD681702642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cde82f8cc8b19ee505cb9f0c9a11151e35bd0dca0c0f91e2992d45fa137bd9. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/NLF712302664.