Xisco is the nickname of people named Francisco. Notable people with the nickname include: Xisco (footballer, born 1980), Spanish footballer Xisco (footballer, born 1986), Spanish footballer Xisco Na
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 0x83cd20818efe155721b4d317874c2c4b5fabeb32302de01ed14c8073aa99860e. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e2a8e20-105a-4de0-a1e4-8c60e24405d2.json and https://artists.proofprofile.net/proofs/artist/9e2a8e20-105a-4de0-a1e4-8c60e24405d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).