edeXa Certify - digital evidence management
Chain of custody
that cannot be rewritten.
Digital evidence management and chain of custody software built on a Layer 1 blockchain. File integrity monitoring and tamper-proof timestamps, while your evidence never leaves your own infrastructure.
The problem
Digital evidence is easy to store.
Hard to prove.
Metadata is not proof
File system timestamps can be rewritten in seconds. Anything that relies on local metadata is contestable the moment it matters.
Custody logs live where the risk lives
If the audit trail sits in the same database as the evidence, an administrator with write access can edit both.
Vendor trust has an expiry date
Cloud custody platforms prove integrity only while the vendor exists and keeps the record. Cases outlive vendors.
How it works
Four steps. Permanent proof.
01
Hash locally
The file is fingerprinted inside your environment. Content stays put.
02
Anchor on chain
The fingerprint and its timestamp are written to the edeXa Layer 1 blockchain.
03
Log the custody event
Collection, transfer, or access is recorded as a linked, append-only entry.
04
Verify forever
Re-hash at any point. Match means untouched. Mismatch means altered, and when.
Capabilities
One trust layer
under every record.
Chain of custody software
Every collection, transfer, access, and export event is hashed and anchored in sequence, producing a custody chain that cannot be rewritten after the fact.
File integrity monitoring
Continuous verification against anchored hashes. A single altered byte is detected, with the exact moment integrity broke.
Tamper-proof timestamps
Distributed block time replaces machine clocks. The time a record existed is provable independently of any server you control.
Immutable audit trail
Append-only records for compliance, ISO 27001 evidence, internal investigations, and regulator requests.
Zero content exposure
Only one-way fingerprints are anchored. Evidence, case files, and personal data never leave your infrastructure.
Verification anyone can run
Opposing counsel, an auditor, or a regulator can verify a hash against the public chain without an account or your cooperation.
Hash on chain. Content at home.
Prove integrity without disclosing a single page.
Where it is used
Built for records that get challenged.
Law enforcement and forensics
Seizure to courtroom custody records that survive cross-examination.
Corporate investigations
Whistleblower material, HR case files, and internal audit evidence preserved defensibly.
Insurance and claims
Damage photography, inspection reports, and adjuster records fixed in time.
Compliance and audit
Immutable trails for financial, medical, and ISO record-keeping obligations.
Questions
Straight answers.
What is digital evidence management software?
It records how a digital file was collected, stored, accessed, and transferred so its integrity can be proven later. edeXa Certify adds a blockchain anchor, so the record is independently verifiable rather than trusted because a vendor vouches for it.
How does blockchain chain of custody work?
Each file is hashed locally. Only the hash and its timestamp are written to the edeXa Layer 1 blockchain. Re-hashing later either matches the anchored value, proving nothing changed, or it does not, proving something did.
Do our files leave our servers?
No. Files stay in your own systems. Only a one-way cryptographic fingerprint is anchored on chain, so confidential content is never uploaded or exposed.
Is a blockchain timestamp accepted as evidence?
Admissibility is always the court's decision. An anchored hash supports authentication of digital records under rules such as US FRE 902(13) and 902(14) and eIDAS in the EU, by providing a reliable tamper-evident record of integrity and time.
Does it replace our existing systems?
No. It runs alongside them. edeXa connects to the storage and case systems you already use and works silently underneath your current workflow.
Next step
Certify your first 10 records free.
A 15-minute technical walkthrough covers connectors, hashing, and how verification looks to a third party.
Engineered by edeXa AG, Vaduz, Liechtenstein.