Sanja is a South Slavic feminine given name, meaning "she dreams". Notable persons with this name Sanja Ančić (born 1988), Croatian tennis player Sanja Bestic (born 1982), Serbian-American director,
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 0xae815c508eb24697aa516d36dd6dde6787b94d4778edf4d58e69e1be624f0595. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b28b13fa-3ece-4720-b0d2-3efdc56d3be2.json and https://artists.proofprofile.net/proofs/artist/b28b13fa-3ece-4720-b0d2-3efdc56d3be2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).