Oboro may refer to: Fiction Oboro, a character in the manga and anime series Gintama Oboro, a character in the novel The Kouga Ninja Scrolls Oboro (Utawarerumono), a character in the series Uta
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 0xc7a9f7365b05cfe33d70a1c3afca3fa99bbe989e67375ded923cacc4e5cb9852. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5ee4ed5-17ae-4196-b435-f089b082ea95.json and https://artists.proofprofile.net/proofs/artist/e5ee4ed5-17ae-4196-b435-f089b082ea95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).