Bube is a surname. Notable people with the surname include: Andreas Bube (born 1987), Danish middle-distance runner Richard H. Bube (1927–2018), American scientist and writer See also Bube language,
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 0x8e836f65787ab796b279b248e5be1c85b86e646b5df931da24a6aace605101db. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d3f4d12-63b5-4a95-afaf-2067e5a53d31.json and https://artists.proofprofile.net/proofs/artist/9d3f4d12-63b5-4a95-afaf-2067e5a53d31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).