Chiro may refer to: Chiro (town), a town in Ethiopia Chiro (woreda), a former district of Ethiopia chiro-, a prefix referring to hands, or to chirality Chiro Flanders, a Belgian Christian youth o
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 0xa0120be77b550bad6059078f2880cebefaa901c9ef86a93aa45d4e0a94493312. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35fa1316-dd8a-46ba-b83c-0be9252db2e7.json and https://artists.proofprofile.net/proofs/artist/35fa1316-dd8a-46ba-b83c-0be9252db2e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).