Donna Zukor (born March 7, 1947), known professionally as Donna Loren, is an American singer and actress. A performer in the 1960s, she was the "Dr Pepper Girl" from 1963 to 1968, a featured female
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 0x364bc2909e289a4376f3a7d6516139d85e2a83899cdf8a87da1bc8f4c46a8ed5. Chain 2 (Bitcoin): anchored in block 953841 (2026-06-15T22:20:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00567129-32b1-4465-907e-8eb84d6c8a54.json and https://artists.proofprofile.net/proofs/artist/00567129-32b1-4465-907e-8eb84d6c8a54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It Only Hurts When I Cry (2009) - Single