Payment Card Industry Data Security Standard v4.0 requires verifiable evidence of operational controls. H33-74 produces that evidence as a chain-portable post-quantum proof that survives the systems and chains it was anchored to.
Payment Card Industry Data Security Standard v4.0 (Global, organizations storing, processing, or transmitting cardholder data) places obligations on organizations to demonstrate that operational controls were in place, that automated decisions were governed, and that an audit trail exists for regulatory inquiry. Most existing audit-log architectures meet the letter of the requirement but produce evidence tied to the operator's current systems. If those systems change or fail, the evidence weakens.
PCI-DSS Requirements 10 (log and monitor all access to network resources and cardholder data) and 11 (regularly test security systems and processes) require persistent, tamper-evident audit trails of access to the cardholder data environment. Requirement 10.7 requires log retention for at least one year with three months immediately available. Requirement 12 requires documented and verifiable security policy and procedure evidence.
PCI-DSS audit obligations require evidence that log integrity has not been tampered with, including in the case of insider compromise of the logging infrastructure itself. H33-74 produces each access event and each policy decision as a cryptographically signed proof that an attacker cannot forge without breaking three independent post-quantum signature families. The QSA can verify any individual proof directly without relying on the operator's logging stack remaining un-compromised.
Read the architectural concept underneath every H33-74 regulatory deployment.
Chain Portability Why Chain Migration Shouldn't Exist