Haule () is a village consisting of about 600 inhabitants in the municipality of OoststellingwerfVillages - Ooststellingwerf Municipality in the east of Friesland in the Netherlands. The village w
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 0x38c34ff660b3e919d330454cce1e6e4d2b0bdff4fa2a9435a936bb2200f98639. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c8bb499-3b43-47df-a179-80ddf1db8f53.json and https://artists.proofprofile.net/proofs/artist/3c8bb499-3b43-47df-a179-80ddf1db8f53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).