Thomas Fey (born 9 November 1960) is a German orchestral conductor. At the University of Music and Performing Arts Mannheim he studied music and conducting and at the Salzburg Mozarteum studied histo
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 0x33199078d5e26da1876d04214b1d9d61f45761057ba0fe5d419fb57fa65d4066. 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/fa742682-540b-4e2b-81c6-8b0a8507df3c.json and https://artists.proofprofile.net/proofs/artist/fa742682-540b-4e2b-81c6-8b0a8507df3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Judas Maccabaeus, HWV 63, Pt. 1: No. 1, Overture
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 0x69d7b3c93a1303f12ce718352e2f29dcc6771beeaaa7fe98bfc0d53203fcb935. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEB909200301.
Judas Maccabaeus, HWV 63, Pt. 1: No. 5, For Sion Lamentation Make
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db12460b0cb3914eea5a5d959a69b08a6f6c7d67c2f43baa095baa21a2a6e6c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEB909200305.
Judas Maccabaeus, HWV 63, Pt. 1: No. 8, Oh Father, Whose Almighty Power
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fc371ad6aeb829a0767b7dcba4e453de9d77d9d4eb69449289823b685a9b96. 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/DEB909200308.
Judas Maccabaeus, HWV 63, Pt. 1: No. 10, Arm, Arm, Ye Brave - No. 11, We Come, in Bright Array
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43e02d20bf274235bf07fd9e1dd6f30761c6f0714e61a01280f99957b2ecaaf. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DEB909200310.
Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790611b6dae8c7044dd32701e0ad3c665f688f52441fe9f5531577a602fa42eb. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USB8U1612523.