Thomas Brückner (12 June 1975 – 15 July 2024), known by his stage name Tomcraft, was a German DJ and producer. He specialized in progressive house and progressive trance music and is better known for
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 0xe139d01912cc702f61b5a5ea26cbec5f4a0bd63e1efb3a4a8a37b23012c2e9ee. 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/4766bfcd-1583-476a-b84a-2e69e948ab05.json and https://artists.proofprofile.net/proofs/artist/4766bfcd-1583-476a-b84a-2e69e948ab05.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 0x7f92c8e50cb3f597afb5917ae37173538b5dabba9c0571d9a40878538830d934. 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/DEE862301777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8940b6dfbcab1efd15ca4ce299617d1615a75f008faa06a28634b4566652596. 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/NLZ542001501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b157f2412d86c1d515f81e9133255e71795e43abd503c57da76f6fe0045948. 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/DES231900143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de7086dd7b4836321fa4d6a27efd1f39aae4e0c5efd5a1130e92ba7ab3c953c. 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/DES231900144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10af920bb25718ef66f4db150286abd5d39007e19547506ca798f06c8d5925b8. 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/DES231900149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e21d0561d85bfcfd7163bb2c73cb530aef5816479b31c88c9dad6be8cb36105. 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/DES231900150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7d985bb381d058269327759aeee1031d91e405d93424afbdfc9fc09670ecf3. 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/DEPI81902507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d4503961da2455020aafb76c30478821e4d2a86c12cc9cbe0b6f97cbbefff6. 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/DEN120003754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe729e6f700ffef8f079415fd59b78425ed8115983805eb905053cd849301995b. 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/DEN120110138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c093d6a3bcba86bc47bc3a182fd3fda0129a2deea05fd8c283a67759d94b99b. 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/DES231300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46b87f1ae863d01064f94acafd8ca9c1c14af49e3f46e076510a6129f6fc4b9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DES231300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06893144ca4b3bb76ab68c96e546d7deb7520db16c6d866714589049f270b2a8. 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/DES230700011.
Sureshot (feat. Sido & Tai Jason) - Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b3405e3f8a2851e3ea810b964f6421a15800d0dc8fd4627144a33e773a4300. 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/DES230400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f57a0a902977ad5171b57c190e3ddd57f08ea2597f5a38eab78ad58283d740. 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/DES230200263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8dab4458c9d97a8bb4574563d7f1c79246ad5d7caf9bf8ea4a9b889f65a1cb. 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/DES230200277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ae2d802d8019d58a7b9fb83c4aac4ea065a0e230e55a59ef6a34c287a1638f. 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/NLE712500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4866913d3ec8b406a371eeec22433628813a29d21814744920b1900e47f27f6c. 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/NLE712400090.
Happiness (feat. MOGUAI & ILIRA) [Paul Woolford Remix]
Happiness (feat. MOGUAI & ILIRA) - Paul Woolford Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6d3c9352751259e9304740a60c571e02d38f377cb4fcff6101ae3a2eea452f. 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/NLZ542100608.
Happiness (feat. MOGUAI & ILIRA) [Paul Woolford Extended Remix]
Happiness (feat. MOGUAI & ILIRA) [Max Bering Remix]
Happiness (feat. MOGUAI & ILIRA) - Max Bering Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488be9a867ef420fd547ac4667f23813f36c01eb12c1c4c60894fc03aa46eac9. 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/NLZ542100045.
Happiness (feat. MOGUAI & ILIRA) [Max Bering Extended Remix]