Chico () means small, boy or child in the Spanish language. It is also the nickname for Francisco in the Portuguese language (). Chico may refer to: Places Chico, California, a city Chico, Montana
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f1f804b8a40f58d7870e70779070fac3972dd9b504eecfb29599a6f159d66b. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94cdf7a2-ebbf-4d38-a193-a1facc68bb88.json and https://artists.proofprofile.net/proofs/artist/94cdf7a2-ebbf-4d38-a193-a1facc68bb88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).