Cryptographic Audit Infrastructure for Regulated Firms

Delete the Data.
Keep the Proof.

SRA says keep everything. ICO says delete it all. Nexum Ledger satisfies both — immutable audit trails with GDPR-compliant cryptographic erasure, built in Rust.

10,000+
Events per second
AES-256
Per-record encryption
SHA-256
Hash chain integrity
Bitcoin
Timestamp anchoring
The Regulatory Contradiction

Two regulators. Two mandates. Zero overlap.

SRA / IPA

Solicitors Regulation Authority

“Maintain tamper-evident, immutable records of all client account activity and compliance events. Any gap in the audit trail is a disciplinary matter.”

ICO / GDPR

Information Commissioner's Office

“On request, permanently erase all personal data relating to the data subject. The right to erasure is absolute when the data is no longer necessary.”

Today, most firms manage this with two separate systems and a compliance officer manually reconciling between them. It's expensive, error-prone, and leaves the firm exposed to both regulators simultaneously.

How Nexum Solves Both

Purpose-built cryptographic infrastructure that makes audit immutability and data erasure structurally compatible.

Tamper-Evident Audit Trail

Every compliance event is SHA-256 hash-chained. Modify any record and every subsequent hash breaks — detectable instantly by any auditor.

GDPR Cryptographic Erasure

Each record is encrypted with a unique key. On erasure request, the key is destroyed — data is gone forever, but the audit chain stays intact.

Independent Verification

Merkle roots are anchored to Bitcoin via OpenTimestamps. Any party can verify your audit trail with open-source tools — no dependency on Nexum.

Three Steps. Both Regulators Satisfied.

01

Compliance events are sealed

Client account activity, trust transactions, and case events from your practice management system are ingested, encrypted with a unique key, and appended to a hash-chained audit log.

02

Data subject requests erasure

When a client invokes their GDPR Article 17 right, Nexum destroys the encryption key. The data becomes permanently unrecoverable. A destruction certificate is generated as evidence.

03

Audit trail remains intact

Because hashes were computed over encrypted payloads, the chain is unbroken. Your SRA audit passes. Your GDPR obligation is met. Both regulators satisfied, simultaneously.

Integrates with your practice management system

Clio Manage
LEAP Legal
Osprey Approach

See It in Action

We're onboarding design partners from UK law firms and insolvency practitioners. Book a 30-minute demo to see how Nexum handles the SRA/GDPR contradiction in your compliance workflow.

Request a Demo
Currently accepting design partners