PaperTrail Academic — Know How It Was Written

The PaperTrail Suite

Four tools. One question: Did they write this?

Click any card to see a full preview and feature breakdown.

"Something about this essay doesn't add up."

Reconstruct the full revision history of any Google Doc — every session, paste, and pause — into a clear, documentable timeline.

Full revision timeline & paste log
Session history — when and how long they worked
Revision playback — watch it being written
Deep analytics — chars per minute, deletion ratio & more

📄

Inspect

Summary

Pastes

Flags

Revisions

23m

Active

Pastes

📅 Timeline

⚡

📋 Paste #2 — 847 chars 82% Novel

"The social contract, as Rousseau described, represents a fundamental agreement…"

⚡ High-Density Revision · Para 2

412 chars rewritten · 8 revisions · 4m 12s · Early-draft position

Revision #31 diff

the argument remains unclear to scholars

the philosophical implications of this debate

have been studied in modern contexts.

Session 2 · Nov 14, 9:38 PM

18m · 1,240 chars · 2 pastes

Everything you need to understand a writing process

Full revision timeline — every edit laid out chronologically
Paste detection and paste log — flagged with timestamp and character count
Session history — date and time the student opened and worked on the document
Revision playback — watch the document being written from the first character
Deep analytics — characters per minute, deletion ratio, revision density
Activity flags — unusual patterns automatically surfaced

Free

No account required. Installs in seconds.

⬇ Add to Chrome — Free

Inspect reads Google Classroom document revision metadata. Requires Editor or Owner access to the document. No document content is stored or transmitted.

"This doesn't sound like them."

Compare a controlled writing sample against submitted work using eight research-based stylometric metrics — all computed locally in your browser. No text is ever transmitted.

Eight research-based metrics including function words & discourse markers
⚡ Struggle moment detection on the revision timeline
Paste novelty analysis — flags low-originality paste events
Divergence ratings per metric: Similar / Notable / Divergent
Printable PDF report with research citations

🔍 StyleMatch — Authorship Consistency Report

Controlled: 847 words · Submitted: 1,204 words

J. Martinez · Nov 14, 2025

FK Grade Level

92% Similar

Type-Token Ratio

87% Similar

Avg Sentence Length

81% Similar

Punctuation

82% Similar

Informality Markers

98% Similar

Sent. Rhythm (SD)

68% Notable

Discourse Markers

43% Divergent

Function Words

3% Divergent

⚠ Analytical data point — not a finding of fact. Educator judgment required. Not suitable as sole basis for any disciplinary action.

Eight metrics. Research-backed. Entirely private.

Grammatical Function Words — Burrows' Delta over 30 core function words; among the most stable authorship signals
Discourse Marker Profile — Burrows' Delta over 29 connectives & stance markers; reflects reasoning habits
Punctuation Fingerprint — comma, semicolon, dash, colon, !, ? rates per 1,000 characters
Avg Sentence Length — characteristic length that persists across writing tasks
Sentence Rhythm (SD) — standard deviation of lengths; captures varied vs. uniform rhythm
Type-Token Ratio — vocabulary range; interpreted cautiously across different text lengths
Flesch-Kincaid Grade Level — reading complexity; stable across tasks for the same writer
Informality Markers — contraction rate & first-person pronoun rate
⚡ Struggle moment detection — regions of heavy revision on the timeline signalling genuine engagement
Paste novelty analysis — flags paste events with low originality relative to the document
All computation runs locally — no text ever transmitted
Minimum 500 words per sample required

$4.99/month

or $49.99/year — save 17%

See full pricing ↓

StyleMatch is a probabilistic tool. Genre-constrained writing (lab reports, TOK essays) may show inflated similarity on some metrics. Always apply professional judgment. All reports include a mandatory disclaimer.

"I want to be thorough before I have this conversation."

AI-assisted deep stylometric analysis — examine internal consistency within a single essay, or compare it against a controlled writing sample across ten research-grounded dimensions.

Consistency Report: chunks essay into segments, scores 6 dimensions each
Baseline Deviation Report: 10-dimension comparison vs. controlled sample
AI-suggested follow-up questions for the student conversation
Printable PDF — no text retained after analysis

🔬 Consistency Report — S. Okonkwo 78 · Consistent

Stylometric Heatmap — 29 chunks · 0 flagged

Register5.6 / 10

Vocabulary5.8 / 10

Argument Depth6.0 / 10

Error Density7.5 / 10

🔬 Baseline Deviation — S. Okonkwo 2 Anomalous

Anomalous

Notable

Within Range

Function Word Distribution — 43/100 similarity

Error & Mechanics Fingerprint — characteristic errors absent

Syntactic Patterning — notable shift in sentence openings

Two reports. Ten dimensions. One conversation.

Consistency Report — analyses a single essay in 29 chunks across Register, Vocabulary, Sentence Complexity, Argument Depth, Error Density, and Cohesion. Produces a heatmap and writer baseline profile.
Baseline Deviation Report — compares submitted work against a controlled sample across 10 dimensions: Function Word Distribution, Orthographic Habits, Punctuation Micro-Patterns, Syntactic Complexity, Syntactic Patterning, Cohesive Device Profile, Error & Mechanics Fingerprint, Nominal vs. Verbal Style, Phrase Recurrence, and Lexical Diversity.
Each dimension rated: Anomalous / Notable / Within Range
AI-generated recommended next steps and suggested follow-up questions for the student conversation
Research citations included — 10 peer-reviewed sources
Printable PDF report with Report ID for institutional records
No text retained after analysis is complete
Credits never expire — use when the situation calls for it

$0.60/report

Starter: 10 for $6 · Semester: 35 for $18 · Year: 100 for $45

See all credit packs ↓

Verify transmits submitted text to PaperTrail's secure backend and the Anthropic API for processing. Text is not retained after the report is generated. See our Privacy Policy for full details.

"I want to see how they actually write."

A focused, timed writing environment for in-class assignments. Students write; the session records the process. Teachers see a full behavioral log on submission.

Timed sessions with teacher-controlled join code
Paste detection, focus-loss events & process log
Student transparency screen — they know what's captured
Session reports: submission text + behavioral timeline

PaperTrail Write Essay: The Ethics of AI

38:14

This session is being documented

Work is saved automatically

Save Now

Submit Essay →

Process Log — Teacher View

09:04:12 SESSION START Jordan M. — joined

09:06:38 PASTE 214 chars — external source

09:18:55 FOCUS LOST Window left — 42s

09:46:02 SUBMITTED 487 words — 41m 50s

What Write gives you that a shared Google Doc doesn't

Timed sessions — set a duration; students see a countdown; the window locks on expiry. No extensions without a deliberate teacher action.
Join-code access — students join via a short code, no account needed. Teachers control who can submit and when.
Paste detection — every paste event is logged with a timestamp, character count, and whether the content was subsequently deleted.
Focus-loss tracking — if a student leaves the writing tab, the duration and timestamp are recorded in the process log.
Student transparency — a mandatory, non-skippable screen tells students exactly what is and isn't captured before they begin writing.
Session reports — on submission, the teacher receives the full essay text alongside a structured process log. Reports can be downloaded as ZIP.
No student accounts — students never register or log in. Nothing is stored beyond the teacher's download window.
Plain text, no assistance — spell check, grammar check, and autocorrect are all off. Students write without AI-augmented support.

$49/yr

Includes unlimited sessions

Go to Write →

Write captures behavioral metadata — paste events, focus changes, and timestamps. Students are shown exactly what is recorded before the session begins. No clipboard contents, keystrokes, or off-tab activity are accessible.

Pricing

Start free. Upgrade when you need to.

Inspect is free forever, no account required. StyleMatch and Verify are for when the situation calls for more.

✏️ Inspect

Free

No account required

Full revision timeline
Paste detection and paste log
Session history
Deep analytics
Revision playback
Struggle moment detection
Paste novelty analysis
StyleMatch authorship comparison
Verify deep analysis reports

⬇ Add to Chrome — Free

🔍 StyleMatch

Subscription

Authorship consistency analysis

$4.99/month

or $49.99/year — save 17%

Everything in Inspect
⚡ Struggle moment detection
Paste novelty analysis
Eight research-based stylometric metrics
Controlled vs. submitted sample comparison
Divergence ratings per metric: Similar / Notable / Divergent
Printable PDF — all analysis stays in your browser, no text transmitted
Verify deep analysis reports

Monthly $4.99 Yearly $49.99

🔬 Verify

Pay per report

Deep AI-assisted analysis

$0.60/report

Starter: 10 reports for $6

Everything in Inspect
Consistency Report — chunks essay into segments, scores 6 dimensions each
Stylometric heatmap & writer baseline profile
AI-suggested follow-up questions for the student conversation
Printable PDF with Report ID for records
No text retained — credits never expire
Baseline Deviation Report — requires StyleMatch subscription

Buy Verify Credits

🔬 Verify Credit Packs

Credits never expire. Use as the situation calls for it — no subscription required.

Starter

reports

$6.00

$0.60/report

Buy Now

Semester

reports

$18.00

$0.51/report

Buy Now

Year Supply

100

reports

$45.00

$0.45/report

Buy Now

You've read thousands of student essays.
Trust that instinct — then document it.

Four tools. One question: Did they write this?

"Something about this essay doesn't add up."

Everything you need to understand a writing process

"This doesn't sound like them."

Eight metrics. Research-backed. Entirely private.

"I want to be thorough before I have this conversation."

Two reports. Ten dimensions. One conversation.

"I want to see how they actually write."

What Write gives you that a shared Google Doc doesn't

Start free. Upgrade when you need to.

Free

Subscription

Pay per report

Built to pass the IT review.

Every email gets a real reply.

General Inquiries

School & Department

Privacy & Compliance

You've read thousands of student essays.Trust that instinct — then document it.

Four tools. One question: Did they write this?

"Something about this essay doesn't add up."

Everything you need to understand a writing process

"This doesn't sound like them."

Eight metrics. Research-backed. Entirely private.

"I want to be thorough before I have this conversation."

Two reports. Ten dimensions. One conversation.

"I want to see how they actually write."

What Write gives you that a shared Google Doc doesn't

Start free. Upgrade when you need to.

Free

Subscription

Pay per report

Built to pass the IT review.

Every email gets a real reply.

General Inquiries

School & Department

Privacy & Compliance

You've read thousands of student essays.
Trust that instinct — then document it.