Across Diglot & Copyeditor
Proof of how you wrote it.
The Authorship Certificate is a cryptographically signed, publicly verifiable record of your writing process. It documents how a piece was written — not a claim about who you are, and not a verdict in anyone’s favour.
It documents the writing process. It does not prove legal innocence.
HOW IT WORKS
Three steps, no trust required
The Certificate is built so you don’t have to take our word for anything — the cryptography is the proof.
You write, the chain records
When you opt in, each meaningful edit is captured as an event — what changed and when — building an ordered record of how the piece came to be.
Each event is signed
Events are signed with ed25519 keys and linked into an append-only chain. Nothing can be quietly altered or removed after the fact without breaking the chain.
Anyone can verify it
The Certificate is publicly verifiable. A reviewer, an instructor, or an editor can check it without an account and without trusting us — the cryptography does the work.
UNDER THE HOOD
An append-only, signed chain
Each writing event is signed with ed25519 keys and appended to an immutable chain. The record is never mutated and never deleted within its retention window. Anyone can verify the whole chain independently — no login, no account, no Writence in the loop.
- ed25519 cryptographic signatures
- Append-only — never mutated, never deleted
- Public verification, no account needed
- One standard across both products
BE CLEAR ABOUT IT
What it documents — and what it doesn’t claim
We’re deliberate about the limits. Overstating a Certificate would hurt the writers it’s meant to help.
What it documents
- That a real writing process happened, over time, with edits and revisions.
- The order and timing of how the work took shape.
- That the recorded chain hasn’t been tampered with since signing.
What it does not claim
- It does not prove legal innocence or guilt of any kind.
- It does not certify the quality, originality, or correctness of the writing.
- It does not override an institution’s own academic-integrity process.
The Authorship Certificate documents the writing process. It does not, and cannot, prove legal innocence — it gives a writer verifiable evidence, nothing more and nothing less.
Why it matters
When a detector wrongly flags a second-language writer, “trust me” isn’t enough. A signed record of how the work was actually written gives them something real to stand on.
Read the bias research →QUESTIONS
The Certificate, answered
Do I need an account to verify a Certificate?
No. Verification is public and account-free. Anyone you share it with can confirm the chain is intact and unaltered on their own.
Does the Certificate prove I didn’t use AI?
No — and we’re careful not to claim that. It documents that a genuine, time-ordered writing process took place and hasn’t been tampered with. It’s evidence about process, not a verdict about a writer.
Why does this matter for ESL writers?
Non-native English is flagged as “AI” by detectors far more often than native English. A verifiable record of how the work was actually written gives those writers something concrete to point to when a false flag lands.
Is it the same across Diglot and Copyeditor?
Yes. Both products write to the same signed authorship chain, so a Certificate from either looks and verifies identically.
Provable
human writing.
The Authorship Certificate ships inside both Diglot and Copyeditor. Explore the products to see it in context.
