Peter Kiesewetter (1 May 1945 – 4 December 2012) was a modern classical composer, born in Marktheidenfeld, Germany to Silesian parents. External links Interview with Peter Kiesewetter (in German)
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 0x09b8361cd7e70ed5b1fad4c76585fbc71196fccff9315c1036bf4353cc6a0ea7. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8268b863-e6a9-4d80-aebd-a7fa29524a84.json and https://artists.proofprofile.net/proofs/artist/8268b863-e6a9-4d80-aebd-a7fa29524a84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kiesewetter: Reineke Fuchs (Arr. H. Ruhmann for Narrator & Chamber Ensemble)