Use Case — Litigation
Prove When Evidence Existed — Before It's Challenged
Digital evidence is easy to question. A Bitcoin-anchored timestamp makes it independently verifiable.
The Problem with Digital Evidence
In litigation, the opposing side will challenge when a document was created, whether it has been altered, and whether it is authentic. Digital files carry metadata that is trivially easy to modify — file creation dates, modification timestamps, and EXIF data can all be changed in seconds.
Email threads, contracts, photographs, chat logs, financial records, and internal reports are routinely questioned during discovery. Even when the evidence is genuine, proving it has not been tampered with often requires expensive forensic analysis, and the results are still open to dispute.
Courts increasingly expect parties to demonstrate chain of custody for digital evidence. Without an independent, verifiable record of when a file existed in its exact form, even legitimate evidence can be excluded or undermined.
How Timestamping Solves This
At the time evidence is collected or a document is finalized, the file is timestamped using EverCert. EverCert generates a SHA-256 hash — a unique cryptographic fingerprint — of the entire file. This fingerprint is anchored to the Bitcoin blockchain via OpenTimestamps, creating a permanent, public record.
The result is a tamper-proof timestamp for legal documents that proves two things: the file existed at a specific point in time, and it has not been altered since. If a single byte changes — one edited word, one cropped pixel, one deleted paragraph — the hash will be completely different, and the verification will fail. In practice, this means you can prove your document wasn't altered after the fact — a claim that file metadata alone cannot support.
The proof is independently verifiable. Any party — opposing counsel, a judge, an expert witness — can verify the timestamp against the Bitcoin blockchain without needing EverCert or any third party. The Bitcoin blockchain itself serves as the neutral, immutable witness.
The file never leaves your device. Only the hash is transmitted.
How to Timestamp Evidence
- 1Collect and preserve the digital evidence in its original format (PDF, image, email export, etc.)
- 2Go to evercert.io and drop the file into the upload area
- 3EverCert creates a proof package containing the timestamp receipt and certificate
- 4Store the proof package alongside the original evidence in your case file or document management system
- 5When needed, use the proof package to independently verify the file has not been altered since the timestamp was created
Why This Matters for Legal Professionals
- •Litigation attorneys can proactively timestamp key documents the moment they are received or created — before any dispute arises
- •In-house counsel can establish verifiable records for contracts, board resolutions, and compliance documents
- •E-discovery teams can demonstrate chain of custody for electronically stored information (ESI)
- •Expert witnesses and forensic analysts can anchor their reports to an independent timeline
- •The cost is zero and the process takes under 30 seconds
Think of it as a way to blockchain notarize a document — anchoring it to a public, permanent ledger that no party can alter — without the cost or scheduling of a traditional notary.
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