Ava or AVA may refer to: Places Asia and Oceania Ava Kingdom, in upper Burma from 1365 to 1555 Inwa, formerly Ava, the capital of Ava Kingdom Earl of Ava, a British colonial earldom in Burma Ava,
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 0xb9dbc73089b594cf349a8f26e4331a3ec994817524c3b0cd1b92ed1ac769f262. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16a760de-4d6c-42bf-8ac3-f7dfed68c641.json and https://artists.proofprofile.net/proofs/artist/16a760de-4d6c-42bf-8ac3-f7dfed68c641.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).