Nordfold is a village in Steigen Municipality in Nordland county, Norway. The village of Nordfold lies along the Nordfolda, a northern branch of the main Folda fjord. The village lies about east of
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 0x6aade968233e2245b8f65a438d313ce1cd3fd5df07f4c73d2f95f52df3f1969a. 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/b0cd637d-afdb-441d-b2b2-40e3f172959d.json and https://artists.proofprofile.net/proofs/artist/b0cd637d-afdb-441d-b2b2-40e3f172959d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).