AI Governance / Trust Infrastructure

Sovereign Agent Audit Fabric: A Tamper-Evident Ledger for AI Agents

Client Institutions running AI agents in production

Jungroo AI built an audit fabric for institutions that run AI agents in production. Every action an agent takes is recorded with the full context behind it, signed with the agent's own key, and written to a hash-chained ledger inside the client's perimeter. Because each entry seals the one before it, the audit trail cannot be quietly edited by the systems it monitors or by the administrators who run them.

The challenge

Institutions moved from assistive AI to autonomous agents faster than their audit infrastructure could follow. Agent activity landed in ordinary application logs: written by the same runtime being audited, stored in tables any operator could edit, and kept for however long a platform team had set years earlier. Completeness was the bigger problem. A single agent action might touch four systems, and the details that explain it (which model version ran, which prompt was live, what the agent retrieved, which tools it called) sat in all of them under different retention rules. Months later, in a customer dispute or a regulatory review, teams could describe what an agent had done in broad terms. Proving it was a different exercise.

The solution

Jungroo AI built an agent audit fabric, deployed entirely within the institution's own perimeter:

• Hash-Chained Action Ledger: Every entry carries the cryptographic hash of the entry before it, so the log reads as one continuous chain. Edit a record, drop one, or swap the order of two, and verification fails from that point on. Catching tampering stops being a question of policy and becomes a question of checking the math.
• Complete Decision Capture: Each action is stored with everything needed to understand it later: the model and prompt version that were live, the documents the agent retrieved, the tools it called, and what came back. No one has to piece an agent's behaviour together from partial traces in four systems.
• Non-Repudiable Agent Identity: Every agent, service and human approver holds its own signing key, and each entry carries the signature of whoever produced it. An action cannot be disowned later, quietly reassigned, or lost behind a shared service account.
• External Witnessing: The current head of the chain is regularly notarised with a witness outside the institution's control. This turns internal record-keeping into evidence: without it, anyone holding the infrastructure could rebuild the chain unnoticed. With it, a rewrite can be proven to a third party who has no reason to take the operator's word for anything.
• Sovereign, Zero-Egress Storage: The ledger runs on the institution's own infrastructure, with no outside party holding the audit trail. Sensitive payloads stay in existing private stores, and only their content hashes go onto the chain, so regulated data never enters a structure it cannot be deleted from, and its integrity can still be proven.
• Forensic Replay and Attestation: An auditor can pull any action, see the exact context it ran in, and check it against the chain and the witness receipts. Incident review becomes something you can verify rather than something the team has to narrate.

The impact

Impact