Aba may refer to: Animals Aba roundleaf bat Gymnarchus (or aba), an electric fish People Clans Aba (family), in Hungary Aba people, in Russia Hape people, in North America In arts and
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 0xa98e20faa8c4b50b26888e4ce5ce4e3b3f8bd686789c586e3de2902e0f3686f4. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02005041-d27b-443c-b0b3-5d703f05e943.json and https://artists.proofprofile.net/proofs/artist/02005041-d27b-443c-b0b3-5d703f05e943.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).