Θεμέλιον

The audit trail is the product, not the by-product.

Themelion is not a module you pick. It is the floor every module stands on. Whichever single module you buy, Themelion comes with it in full.

Worked example

one customer, six steps, six receipts

Four things, every time.

Receipts: What happened, who caused it, when, and under which authority. Issued to the customer where the action is theirs.
Rule versions: The exact ruleset that was live at the moment of the decision, so the decision can be reconstructed years later rather than re-argued.
Context snapshots: The state the decision was taken against: consent scope, grade, entity, purpose. Captured rather than inferred afterwards.
Content hashes: Documents and payloads bound cryptographically to the identity they prove, so tampering is detectable and reliance is defensible.

Retention

Immutable event log, five-year AML retention, legal hold. Residency and retention configured per jurisdiction.

Every receipt, rule version and hash from day one is yours to keep.

A person replies, not an autoresponder.

Proven in production at a systemic European bank: transmission to regulated subsidiaries with full consent management and audit trail.