Karen Solveig Sinding Møller Finch (8 May 1921 – 15 April 2018) was a Danish-born British master weaver, conservator and educator who was the founder of the Textile Conservation Centre. Life Karen F
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 0x7686c590e3670707f30ca0716b7c907112206a8901a5469426bc5b797c52cd3a. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3508441-7b76-42f7-857a-b9210bd8a6f4.json and https://artists.proofprofile.net/proofs/artist/b3508441-7b76-42f7-857a-b9210bd8a6f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).