Loen may refer to: People Dagfinn Loen Johann Michael von Loën (1694–1776), German writer and statesman John van Loen (born 1965), Dutch football player Maria of Loen-Heinsberg Sjur Loen (born 1
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 0xaf5fe953abce0dabf8a771ca65d77cbc4386977fc2d4f34df162c732634446aa. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24de138b-c3e4-44a5-ab84-a7c5eab218b1.json and https://artists.proofprofile.net/proofs/artist/24de138b-c3e4-44a5-ab84-a7c5eab218b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).