Jochen van der Steijn (; born 11 April 1979), better known by his stage name Jochen Miller (), is a Dutch trance musician and progressive house DJ. Biography He started his career under the alias "DJ
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 0x0baea9a4f58b86feccbf85a84ae662f3b70214d4b96611b1e0bc03ffd0ebdb67. 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/bda5e70a-b016-4ba1-83ca-cc6cb38ad197.json and https://artists.proofprofile.net/proofs/artist/bda5e70a-b016-4ba1-83ca-cc6cb38ad197.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 0x673ce2392c4258be765514404a683aa3974c0f31b74202289e4a42073ac6f26d. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:37:56Z), 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/NLE800500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67e0e0dd64300ed66759f90bcb9dbe9f1ba1f9b43f34f21269abf6df8936260. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/NLE800800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aa97425677850196461a937f868e646ac0c24b72c75cc9a8d7464ceabb6d37. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:58:42Z), 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/NLE800900264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c44a572bd2bd37b05ed4021b387448a13e3f92905ce248204f3875ddaa03ea. 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/NLE800900396.
Classified (ENERGY 2011 Soundtrack) - Single
Classified (ENERGY 2011 Soundtrack) [The Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda09529383efeeaf481af47769940080bd17c55297e4995c9ec54c8c514b2b5. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:31:42Z), 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/NLF711501525.
Jochen Miller presents The Sound Of Trice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdea30c0a992f269bf0e732dc7e574686f5deac187a2b0612531dad43a78239d. 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/NLF711506968.
Jochen Miller presents The Sound Of Trice (Mixed by Jochen Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3530c3209fd1779caf2497cc315ecbebc847f80b6598f64eaff521bc6b86c3a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLF711600271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa814108ace2f81f064542fb992b4255edde8bea1268b1d8de1f15623dde8e32b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/NLF711602002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388346507b9c4a3ff6329646fe6197af2addf89cecc0c554e28c814d50e0afc0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLF711607777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e58b668f6ff6eb06f3c8a339f72ab8dacf87cc6ea38998e6556207a1c9f8e2e. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:38:00Z), 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/NLE802400589.
Global DJ Broadcast Top 40 - Best of 2010
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116444baa9592b10e2ab9fe877d96beb09a085062f25582116e1671dd7807189. 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/NLE801000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43065970ee4bc653851bd5b31089b529dbac0f34a295d943096d3f96bb0056d8. 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/NLF711401636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e1dc6f8ae4dc20c3f89a13c9018dfa928daed78fe50edfb9680542b5e36d24. 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/NLF711401637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20e7e100eb3253b13a14c582fd7095fc37d9e701089fa22c81ebf94c957572f. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:49:29Z), 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/NLE801000013.
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 0x3d3a486a65dd0d755b52b2f2b04c1e57550e9a513b237dcc5659e4914c1e511b. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/GBKQU1210320.