
edeXa Certify - document management for law firms
In court, every document
can be questioned.
Legal document authentication and an independently verifiable chain of custody: proof of integrity, origin, and timestamp under your own firm's name.
The shift
Law firms don't buy blockchain.
They buy stronger evidence.
edeXa is a Layer 1 blockchain. edeXa Certify is the Digital Evidence Infrastructure built on it, engineered for modern legal practices. It doesn't replace your workflow. It protects it.

Immutable by design
One anchor on chain. Infinite proof in court.
Performance
Cryptography, translated
into operational advantage.
2s
Verification
Before
Hours sifting through email trails, backup archives, and IT metadata logs to prove a document's history to opposing counsel.
With edeXa
Drag the disputed contract into your secure portal. Instant, mathematically absolute confirmation of file integrity.
0%
Document exposure
Before
Attorney-client privilege forbids hosting sensitive files on third-party servers. Most e-signature vendors do exactly that.
With edeXa
Zero-Knowledge architecture. Only a mathematical fingerprint is anchored. Your contracts never leave your servers.
100%
Immutable timestamps
Before
Standard computer metadata clocks can be manipulated in three clicks by anyone with file system access.
With edeXa
Anchored to a decentralized ledger. A globally distributed sovereign timestamp that cannot be retroactively altered.

Attorney-client confidentiality first
The document itself never enters the ledger. Only its fingerprint does.
Real-world vulnerability
Without edeXa. With edeXa.
Scenario
Executed contracts
Without edeXa
Anyone with basic software can edit a PDF's text, liability caps, or dates post-execution. Visual signatures do not lock the file.
With edeXa
Tamper-evident. A single altered comma breaks the cryptographic seal, alerting all parties.
Scenario
Litigation evidence
Without edeXa
Opposing counsel can challenge digital files during discovery, demanding costly forensic audits to prove no manipulation.
With edeXa
Self-verifying. Independent cryptographic proof of integrity, significantly weakening claims of alteration.
Scenario
Wills & deeds (20+ years)
Without edeXa
Relying on centralized vendors to prove validity decades from now. If the vendor disappears, your validation breaks.
With edeXa
Permanently sovereign. Proof is anchored to a decentralized ledger that outlives any vendor or firm.
Proof in action
Where litigators, corporate counsel,
and commercial lawyers rely on it.
Litigation & evidence preservation
Maintain document integrity from the moment evidence is collected to its presentation in court.
Commercial & contract disputes
Instantly demonstrate the integrity of the certified version. Stop bad-faith arguments before they reach a judge.
Intellectual property
Independent evidence of exactly when designs, source code, inventions, or trade secrets existed.
Corporate governance
Protect board resolutions, shareholder agreements, and governance documents against retroactive modification.

Radical candor
Lawyers are paid to spot the catch. So we lead with the limits.
Confidentiality
Designed for privileged practice.
We designed edeXa with the strict reality of legal practice in mind. The document itself never enters the ledger.
No file uploads
A local connector processes each file on your systems to generate an irreversible mathematical fingerprint.
The ledger is blind
Only the anonymous hash is anchored. No readable content, no client names, no corporate secrets.
Privileged verification
Verify integrity with auditors, courts, or opposing counsel without exposing the document itself.
What edeXa delivers
The pros.
Stronger evidentiary foundation
Supports admissibility under modern digital evidence rules (US FRE 902(13)/(14), EU eIDAS) with a reliable tamper-evident audit trail.
No staff retraining
Paralegals and attorneys keep using SharePoint, iManage, or NetDocuments. The system runs silently in the background.
Risk mitigation
Eliminates the reputational disaster of presenting altered or corrupted files in a legal proceeding.
What edeXa won't do
The cons.
We verify integrity, not legal quality
Cryptography cannot fix a poorly drafted contract. We prove the file has not been altered, not that the strategy is sound.
Admissibility is still up to the court
No software guarantees admissibility. edeXa provides the strongest possible independent proof to support your case.
No retroactive fixes
The infrastructure cannot validate a file altered before it was anchored. Protection begins the moment you certify.
How it works
Four steps.
Your files never leave your desk.
A local connector fingerprints each document on your machine. Only the anonymous hash is anchored. The file itself stays on your systems - always.

01
Upload agreement
Drag any document into your secure firm portal. Or let the connector watch iManage, SharePoint, or NetDocuments automatically.
02
Seal with your name
Your firm's certification mark is applied. Every seal, every certificate carries your brand - not ours.
03
Sovereign timestamp
A precise, globally distributed timestamp is anchored to the ledger. Impossible to backdate. Impossible to alter.
04
Verify forever
Anyone, anywhere, at any time can verify integrity in two seconds. No vendor lock-in. No expiry. Ever.
Your files remain on your local systems - always
The close
Don't defend authenticity.
Guarantee it.
Stop relying on vulnerable metadata and expensive forensic audits. Build an unassailable evidentiary foundation for your clients.
01
Connect
Link edeXa to SharePoint, iManage, or NetDocuments in under 10 minutes.
02
Certify
Secure your first 10 documents entirely free.
03
Deliver
Give clients an elite, modern standard of absolute document security.
No commitment required. Designed by edeXa AG, Vaduz, Liechtenstein.

White-label. Your brand. Your control.
Your name on the seal.
Our engineering underneath.
Every certificate, portal, and verification page carries your firm's identity. edeXa remains invisible - the Layer 1 blockchain and silent layer of trust powering the technology your clients see as yours.
Powered by edeXa Layer 1 blockchain
Your brand, front and center
Custom seals, logos, colors, and domain. Clients see your firm - not a third-party vendor stamp.
Enterprise-grade Layer 1
The same blockchain infrastructure trusted for high-stakes evidence, delivered quietly under your name.
You stay in control
Your workflows, your policies, your relationships. We provide the trust layer. You own the client.