Mariana dos Santos Almeida (born 24 February 1998) is a Brazilian women's association football forward who plays for São Paulo. Early life Mariana dos Santos Almeida was born in Rio de Janeiro, Bra
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 0x6818e363dafd8554af1426c6cc6f2136042c4a7aeb0ce20031e638758775753c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4cf81aa-44aa-4685-b5a8-e3bdf882691b.json and https://artists.proofprofile.net/proofs/artist/f4cf81aa-44aa-4685-b5a8-e3bdf882691b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).