The evidence layer
One response returned.
Two immutable ledger entries written.
Every Anton Intelligence response is written into a double-ledger audit log: the customer-facing response ledger and the internal evidence ledger. Both are hash-linked, region-retained, and reconstructable years later.
customer ledger
Response entry
evidence ledger
Evidence entry
previous hash
sha256:8b41...c92e
current hash
sha256:31ad...8f02
retention
region policy · up to 10 years
Response
The returned decision, score, reason code, and request reference are recorded.
Evidence
The internal source snapshot, rule version, model version, and evidence hash are recorded separately.
Retention
Region policy controls retention windows, with up to 10 years available where required.
Immutable by design.
Each ledger entry includes the previous hash, current hash, timestamp, region, and actor context.
Separation of evidence.
Customer-visible response facts and internal evidence facts are linked but stored as distinct records.
Auditable years later.
A reviewer can reconstruct what Anton returned, what evidence it used, and whether the chain was altered.