Maria Flor Leite Calaça (born 31 August 1983), usually known as Maria Flor, is a Brazilian actress. Career She was discovered in 2002, and her first role was in the film O Diabo a Quatro, filmed in t
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 0x5c8e04a7a2b75b60ff9d708a511b165975becc7fe908916c3626e9769e66d0ce. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b866cd6b-e202-439b-90ed-bd710fe99c95.json and https://artists.proofprofile.net/proofs/artist/b866cd6b-e202-439b-90ed-bd710fe99c95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).