Overboard may refer to: Man overboard, a situation where a person goes over the side of a ship or boat into the water, possibly needing rescue Media Films Overboard (1987 film), a 1987 movie sta
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b282c43bb05e03139a9b263054d0ce7be2759d3545d153012180ae21472922c. 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/e8013f11-7235-41b9-9cd3-15005738c9cf.json and https://artists.proofprofile.net/proofs/artist/e8013f11-7235-41b9-9cd3-15005738c9cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).