The Miss Bolivia is a national beauty pageant in Bolivia. The pageant was founded in 1930, and the first winner, Rosa Pizarro Araoz of Tarija, was sent to compete in Miss Latin America held in Miami,
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 0x280655985160e5c3639354726ae7cd87c59b5a2f5dc4b9d15adf7d429217bec5. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c37bb226-f7bf-41ee-b558-a4fbaa145881.json and https://artists.proofprofile.net/proofs/artist/c37bb226-f7bf-41ee-b558-a4fbaa145881.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).