Omo or OMO may refer to: Geography Ethiopia Omo River (Ethiopia), in southern Ethiopia is the largest Ethiopian river outside the Nile Basin and namesake for all the topics below Omo Nada, one of
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 0x3f08c4fc38971e81c84ff8b8f62a905fe4c2d465dd5ff57f095fe3eb8f42d544. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eaf4291f-d4fb-499e-95c1-490e820cf026.json and https://artists.proofprofile.net/proofs/artist/eaf4291f-d4fb-499e-95c1-490e820cf026.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).