Budde is a surname of German origin. Notable people with the surname include: Brad Budde (b. 1958), American professional football player Christoph Budde (1963–2009), German football player Ed Budde
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 0x9f8f73f183b2c21b62e547e7882b1fda2d74fb0501d1579dc2aaf865e135eab5. Chain 2 (Bitcoin): anchored in block 953681 (2026-06-14T19:31:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64955b79-6205-4756-a5a5-22bdb8d8bd62.json and https://artists.proofprofile.net/proofs/artist/64955b79-6205-4756-a5a5-22bdb8d8bd62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).