How does a defensive publication work on Proofbox?

Answers from the sources

  1. Proofbox

    “You upload a PDF, and the platform processes it fully automatically. The document receives a qualified eSeal with a qualified timestamp under eIDAS (EU) 910/2014 with long-term validation, a SHA-256 hash is embedded in the seal, a persistent DOI is registered, and the publication appears in the Proofbox archive under a permanent URL.”

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Data formats and record details
Download this recordapplication/json
Surface ID
urn:readyscan:corpus:buyer-question:proofbox-q141174999-answer-ac877013c4a9cd4dc985
Material fingerprint
fnv1a64:4c8012fb3736b255
Membership fingerprint
fnv1a64:c5e795ec2a20a09e
Published
2026-10-27
Modified
2026-10-27
ready-scan-subjects/Q141174999
revision Q141174999:content:d7c131274f95315a

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