ONO, Ono or Ōno may refer to: Places Fiji Ono Island (Fiji) Israel Kiryat Ono Ono, Benjamin, ancient site Italy Ono San Pietro Ivory Coast Ono, Ivory Coast, a village in Comoé Distr
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 0x615a0dfbacc7c0b5fa75b738792bbe2f755ca40e3a8d5d7f221f2132aaff6acc. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/051326c2-eb5f-40af-b40d-6a504c271816.json and https://artists.proofprofile.net/proofs/artist/051326c2-eb5f-40af-b40d-6a504c271816.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
EXPANSION! (Feat. toni rei, DUT2, TRADE L)