Kapelle () is a municipality and a town in the southwestern Netherlands on Zuid-Beveland. In 2023 the municipality's population amounts to 13,051. Population centers Topography 360px The municipali
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 0x2f242e72c3cd42b134df6bef2a5a7f9467fa64c896f89d6b8e408caecc5d0ad9. Chain 2 (Bitcoin): anchored in block 954013 (2026-06-16T22:27:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3518a5ee-6118-4725-ae0d-fbba40c5cc78.json and https://artists.proofprofile.net/proofs/artist/3518a5ee-6118-4725-ae0d-fbba40c5cc78.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).