Vellumproof — Your novel, entered into evidence<br>Tamper-Evident Authorship Records<br>Your novel, entered into evidence.<br>Vellumproof binds every draft, timestamp, and writing session into a sworn, tamper-evident record of your manuscript — so when anyone asks whether a human wrote your book, the proof is already on file.<br>Enter it into evidenceSee a proof page→<br>Free for your first manuscript · Private by default · Your words never train anything
The record comprises 20 writing sessions across July 2026, each timestamped at the moment of entry.<br>Drafts entered into the record include:Draft 9 · 15 Jul 20263,994 words<br>Draft 10 · 19 Jul 20265,075 words<br>Draft 11 · 21 Jul 20266,084 words
Each entry is sealed against the one before it. No page of this record can be altered or backdated without breaking the seal.<br>SEAL sha-256 · 2c5a a224 0984 6b9a … fa16 fa6d 9ad0<br>Recorded and sealed this 21st day of July, 2026.<br>/s/ Dylan Reed<br>Author’s Hand
Understudy<br>a novel
Dylan Reed
ExhibitA
So Entered
A finished file proves nothing — anyone can paste 80,000 words and call it a draft. A history is different. It shows the book growing, day by day, in a record no one can quietly rewrite.<br>Timestamped by the serverChained to the version beforeBroken by any tampering<br>…84f0v11 2c9e 71b3v12 d40a 8ef2v13 e07b 55a2v14 9f3a c41dv15 6b1d 03fav16 a92c 4e087d5f…
How it works<br>From first draft to verifiable proof
1.Bring the files you already write<br>Word documents, Markdown, plain text — drop them in as you go. Vellumproof reads the manuscript itself, so every word count is measured from the actual text, never from what anyone claims.<br>reads · manuscript.docx / ch01.md / notes.txt
2.Watch your rhythm take shape<br>A book grows at a human pace: a few thousand words a day, over weeks and months. Your cadence graph and daily activity squares make that rhythm visible — and the rhythm itself is evidence.<br>cadence · 1,900 words a day, most days, for months
3.Every version, sealed in sequence<br>Each version you save is timestamped by our clock — not yours — and chained to the one before it. The timeline can’t be reordered, backdated, or quietly swapped; any tampering breaks the chain.<br>sealed ⟶ 9f3a…c41d ⟵ linked to the version before
4.Hand over proof, not promises<br>Export a signed, machine-verifiable record and a shareable proof page. A publisher or contest can confirm your timeline is intact without ever touching your account — or your drafts.<br>verify · signature valid · chain intact ✓
So Sworn
What’s inside<br>A vault built for manuscripts
Exhibit B<br>Version history<br>Every draft you’ve ever saved, kept for good. Go back to Tuesday’s chapter — or last spring’s — and download it exactly as it was.
Exhibit C<br>Prose diffs<br>See what changed between versions as sentences, not code — insertions and cuts marked the way a copyeditor would mark them.
Exhibit D<br>Counts & cadence<br>Honest numbers, measured from the text: totals per version, words per day, and the long shape of your writing life.
Exhibit E<br>The proof page<br>A page you can hand to anyone who asks the hard question: the timeline, the seals, and a plain verdict — intact, or not.
Your words, your rights<br>Your words stay yours.
A manuscript is the most private thing a writer owns. Vellumproof treats it that way. Your prose is never fed to an AI, never used to train a model, and never handed to anyone else. We seal it, we timestamp it, we keep it — and we make our money from the vault, not from your pages.<br>Never fed to an AI. Not ours, not anyone’s.<br>Never used to train a model.<br>Never shared, never sold. Your draft doesn’t leave your account.<br>Magic-link sign-in. No password sitting in a database waiting to leak.<br>Every version sealed and tamper-evident. Alter or backdate a page and the seal breaks.<br>Yours to erase, whenever you want.
An Honest NoteWe won't oversell it.<br>Upload a finished file and we seal it — a deterrence-grade snapshot, timestamped and chained to the version before. Honest evidence, but not ironclad: a patient cheater who drip-feeds AI text in believable daily chunks can still mimic a real writer’s cadence. Write in the Editor and we go further — your words are observed , watched keystroke by keystroke into a live-witnessed record that is far harder to fake. Neither one proves, cryptographically, that a human wrote your book, and every export says exactly that.
First<br>Manuscript<br>No Fee<br>One manuscript, free. Forever.<br>Every vault starts free — one manuscript, every version kept for good, no time limit. For more than one manuscript at a time, five dollars a month keeps the whole shelf sealed the same way.<br>Your first manuscript, every version, foreverno charge<br>The whole shelf, sealed the same way$5 / month
Questions & answers<br>Answers, on the record
Is my manuscript private?Yes. Your manuscript never leaves your account, never gets shared, and never gets sold. You sign in with a magic link — there’s no password to leak — and you decide if and when to hand anyone a proof page. Sharing is...