D2F Compliant

Invoice lifecycle statuses — created, transmitted, received, accepted, rejected and processed — are not simple operational events. They form part of the evidentiary chain supporting traceability, auditability and regulatory compliance.

Core requirements include:

• Consistent UTC timestamping with synchronized time sources
• Integrity mechanisms through digital signatures or cryptographic hashes
• Tamper-resistant retention according to applicable regulatory requirements
• End-to-end traceability across the invoice lifecycle

D2F Compliant provides methodologies and validation frameworks to assess the consistency, integrity and auditability of lifecycle event logs.