Werner Hink (18 March 1943 – 21 May 2024) was an Austrian violinist and, for many years, Concertmaster of the State Opera Orchestra as well as a member of the Vienna Philharmonic. Early life Hink rec
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 0x0b6ef4cb2f2625c5976816ed7422de7098f30ecb839298d62602f1983ea4a219. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a430a1e-8dfd-48d7-bc02-3959b8f9822b.json and https://artists.proofprofile.net/proofs/artist/4a430a1e-8dfd-48d7-bc02-3959b8f9822b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
M. Haydn & Mozart: Six Duets for Violin and Viola