Bianca is a feminine given name. It means "white" and is an Italian cognate of Blanche. It is known in the Anglosphere as a character in William Shakespeare's The Taming of the Shrew. It came to great
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 0x1a5b10e526370114c497e30652d2bbfa3688f3c23325ab66d0c20223bf56bd3d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1ce2787-0558-4ed6-bb9f-67f881d07353.json and https://artists.proofprofile.net/proofs/artist/b1ce2787-0558-4ed6-bb9f-67f881d07353.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).