Digital Operational Resilience Act (European Union, financial entities) places obligations on organizations to demonstrate that operational controls were in place, that AI and 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 that is tied to the operator's current systems. If those systems change or fail, the evidence weakens.
H33-74 produces audit evidence that survives the system that produced it.
The receipt is cryptographically verifiable independent of the operator. The PQ signatures survive the quantum transition. The chain anchors survive any single chain's deprecation. The audit horizon is institutional, not application-bound.
What DORA requires
DORA requires financial entities to demonstrate that ICT risk is managed, ICT-related incidents are reported, resilience testing is performed, and ICT third-party risk is monitored. The competent authority can request evidence of controls operating effectively across the full reporting period. DORA's reporting horizon (incidents, major changes, third-party arrangements) requires evidence that survives technology refresh cycles, vendor changes, and chain migrations.
Why H33-74 fits
DORA evidence must be reproducible to the competent authority on demand, often years after the events occurred. H33-74 receipts are cryptographically verifiable by the authority directly, without requiring the financial entity's original systems to be operational. The PQ signatures address long-horizon cryptographic survival; the chain-portable anchors address the long-horizon viability of any specific notarization chain. DORA's evidence requirements get longer-horizon protection without changing the entity's underlying ICT stack.
Control mapping
ICT risk management framework
Each risk assessment, mitigation decision, and residual-risk acceptance emits an H33-74 receipt. The framework's operation is independently verifiable by the competent authority.
ICT incident reporting
Incident detection, classification, containment decisions, and resolution emit receipts. The incident timeline is a chain-portable evidence sequence the authority can reconstruct.
Digital operational resilience testing
Threat-led penetration testing results, recovery exercise outcomes, and remediation decisions all emit receipts. Test evidence is cryptographically verifiable independent of the testing vendor's continued availability.
ICT third-party risk
Each third-party assessment, contractual control decision, and ongoing monitoring outcome emits a receipt. Third-party risk evidence survives changes in vendors and platforms.
Information sharing
Threat intelligence shared with peer entities and authorities can be anchored to H33-74 receipts for non-repudiation and timing assurance.
What this changes for the audit team
- Each control's evidence is a cryptographic object the auditor verifies directly, not a log entry the auditor trusts because the operator says so.
- The audit horizon extends beyond the operator's current systems, vendors, or chain choices.
- Regulator inquiry years after a decision can be answered with the original PQ-signed receipt rather than reconstructed from operator memory.
- Independent third-party verification works without the operator's infrastructure being available.
How H33-74 is integrated
- For each control that produces a decision or outcome, the system emits an H33-74 receipt at the moment the decision is made.
- Receipts are signed with three independent post-quantum signature families and contain the structured computation result.
- Receipts are anchored on one or more chains as the audit policy requires (delayed or immediate, single-chain or multi-chain).
- The audit team is given the receipt store and the open-source verifier. They verify independently.
The DORA audit trail becomes chain-portable evidence. Each control's record outlives the system that produced it, the vendor that hosts it, and the chains it was anchored to.
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