Vink, Dutch for chaffinch, is a Dutch surname. It usually is a metonymic occupational surname, referring to one who catches chaffinches (and other small birds) in a vinkenbaan, for food or entertainme
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 0xda8b84ec3faa156708b4f90c8b7b4c5b6a5afcee0079f4a574345090a0245584. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3992b5a-c347-4275-bc46-f456abc9fa89.json and https://artists.proofprofile.net/proofs/artist/b3992b5a-c347-4275-bc46-f456abc9fa89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).