Bruce Lambourne Fowler (born July 10, 1947) is an American trombonist and composer. He played trombone on many Frank Zappa records, as well as with Captain Beefheart and in the Fowler Brothers Band. H
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 0x463f6734708ce91b7bdafbc9b5850e067ec1b355d4d0f2a9c6ada14046a3ea8b. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59b5269b-be0c-47db-a0fd-cca05faaba65.json and https://artists.proofprofile.net/proofs/artist/59b5269b-be0c-47db-a0fd-cca05faaba65.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xe7539d582ddbbf57bdc0798a2e6f83eea8629d22bf30adbd41cd98141e2a5b6f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEK931532108 — a six-check JSON result.
Messiah, HWV 56, Pt. 1: Comfort Ye, My People
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6104b6bb8130245e8652511bf6131eae78b693330b7cfe3547f0bb9f4e6bdd. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10402322 — a six-check JSON result.
Messiah, HWV 56, Pt. 1: Every Valley Shall Be Exalted
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf89cd3e281b07684053a6e6f8b5d232942eee5a0c7c4503a19ad4938c64bb8d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10403322 — a six-check JSON result.
The House Visit (From "Twister") [Orch. B. Fowler & Y. S. Moriarty]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2ae8d9437bc3ab4b5cddb67f776b414c08245cd26c349579fd986f68a7ee38. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10316437 — a six-check JSON result.