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 0x3e2e8180847366491bbad168e85b66d3b8f5082f6faaa3e6e27a1de0ef142c04. Chain 2 (Bitcoin): anchored in block 954046 (2026-06-17T04:53:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40f4947e-2e90-4661-b628-2af87d993bdb.json and https://artists.proofprofile.net/proofs/artist/40f4947e-2e90-4661-b628-2af87d993bdb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).