Paulina or Paullina (, ) is a common female given name Latin. Paulina was a name shared by the mother, sister, and niece of the Roman emperor Hadrian. Paulina Major, mother of Hadrian (Domitia) Paul
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 0x76dd57e785e830b678ee71c790de81047c424cc52871ff4d743eaeed3b32e938. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef35c322-c99f-4cb7-889f-121b8720c7e9.json and https://artists.proofprofile.net/proofs/artist/ef35c322-c99f-4cb7-889f-121b8720c7e9.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.