Blondie is a term sometimes used to refer to a person with blonde hair. Blondie or Blondi may also refer to: People Blondie (nickname), a list of people Debbie Harry, the lead singer of the band B
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 0xc270e7599b7f46a492dcb31917443190cc93a39532fda89eb0fae34364a8662f. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a87fbda9-a138-4bb0-a68d-8538b368898d.json and https://artists.proofprofile.net/proofs/artist/a87fbda9-a138-4bb0-a68d-8538b368898d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).