Patent Pending · Now Available for Windows

Your students wrote it.
Prove it.

Solus is a desktop writing environment that cryptographically signs every keystroke with ECDSA-P256. When a student submits, you get a tamper-evident certificate — not a guess, not a score. Proof.

Patent Pending
ECDSA-P256 Signing
14-Point Verification
Used at Whitworth University
AES-256-GCM Encryption
For Education

Academic integrity that's provable, not probable.

Schools mandate Solus. Students write. Teachers verify. The cryptographic certificate doesn't care about AI detector scores — it shows exactly what was typed.

See how schools use Solus
For Enterprise

Professional work, certified human.

Law firms, consultancies, and publishers use Solus to prove deliverables are human-authored. Free for individuals. Team dashboards for organizations.

See enterprise features
How it works

Not detection. Proof.

AI detectors produce scores. Plagiarism checkers flag patterns. Solus produces cryptographic evidence of exactly what was typed and when.

Keystroke-Level Proof

Every character typed in Solus is recorded with a timestamp and signed into an append-only log. Edits, deletions, and revisions are all captured — the full writing process, not just the final text.

AI Content Detection

Pasted content is quarantined into a separate record, not blocked. Students can still paste quotes and citations — those appear transparently in the certificate. The teacher sees exactly what came from the keyboard vs. the clipboard.

Tamper-Evident Certificates

Each .solus file contains a certificate signed with ECDSA-P256. Any modification to the document — even a single character — invalidates the signature and is immediately detected during verification.

The process

From blank page to verified certificate

1

Student writes in Solus

Every keystroke is timestamped and hashed. The editor looks and feels like any word processor — the signing happens invisibly in the background.

2

Essay is sealed with a cryptographic certificate

On save, Solus seals the keystroke log, paste events, and document content into a single .solus file signed with the student's ECDSA-P256 key pair.

3

Teacher verifies provenance instantly

The teacher opens the .solus file in the teacher dashboard or drags it to verify.soluseditor.com. The 14-point check runs in seconds — no account required.

Solus Teacher Dashboard
Recent Submissions 3 new
Essay #3 — Smith, A.
4,218 keystrokes · 0 paste events
VALID
Essay #3 — Chen, M.
2,891 keystrokes · 3 paste events
PARTIAL
Essay #3 — Johnson, T.
1,102 keystrokes · 0 paste events
VALID
Class average: human-typed
78%
For teachers

Grade with confidence.

Your teacher dashboard shows exactly what was typed versus pasted — with timestamps, keystroke counts, and a human-origin percentage. No more gut feelings. No more student disputes that go nowhere.

See how teachers use Solus
For institutions

Academic integrity at scale.

Institutional licenses for classes, departments, or whole universities. Join codes, seat management, batch verification, and CSV export. SSO and Canvas LTI integration coming in 2026.

See institutional options
Pricing

Two markets. One honest model.

Education and Professional tiers with the same commitment: free for the individuals doing the writing, paid for the organizations that need management tools.

Education
Student Free
$0
forever · students

For students. Full keystroke signing and verification. Always free, no exceptions.

  • Full keystroke signing
  • verify.soluseditor.com
  • Up to 5 saved documents
  • Teacher dashboard
Download Free
Institution
Contact us
departments + universities

Department ($1,499/yr) and Institution plans for schools deploying at scale.

  • Unlimited classes + teachers
  • SSO/SAML + Canvas LMS
  • FERPA compliance docs + API
  • Dedicated customer success
Talk to us
Professional
Individual
$0
forever · 1 person

For professionals who need to prove their own work is human-authored.

  • Unlimited documents
  • Full cryptographic signing
  • verify.soluseditor.com
  • Team dashboard
Download Free
Enterprise
Contact us
unlimited users

SSO, API, compliance agreements, white-label, and dedicated support.

  • SSO + API access
  • Compliance agreements
  • White-label options
  • Dedicated support
See enterprise details

See full feature comparison →

Get started today

Start for free.
No credit card required.

Students download Solus free. Teachers can verify any .solus file without an account.