David E. Finck (born August 26, 1958) is an American jazz bassist. He plays both bass guitar and double bass. Early life and education Finck was born in Rochester, New York, while his father was at
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 0xff11e200579dc254bfbf7cb795abc1be619de66324040744c9f9c329aacd3f03. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5427d92-2856-4769-8374-932b6796675c.json and https://artists.proofprofile.net/proofs/artist/e5427d92-2856-4769-8374-932b6796675c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).