Roxane van Iperen (born 11 June 1976) is a Dutch writer and jurist. Education and career Van Iperen attended English secondary school in the Spanish city Málaga from 1990 to 1992. She then moved ba
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 0x6be03abebc38fcc611e1f923e31c6640e8d20c05527255b84286ace5eadbe5e8. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9302936a-d663-4143-9ed5-c78e8ba7c6a6.json and https://artists.proofprofile.net/proofs/artist/9302936a-d663-4143-9ed5-c78e8ba7c6a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).