OnChainESignReady to Sign On-Chain?
Sign documents online in minutes — verified forever on the blockchain. Cheaper than a notary, faster than overnight mail.
Pay Per Envelope
$10
/envelope
- 1 sender + unlimited signers
- Cheaper than a notary
- Blockchain verified & tamper-proof
- Certificate of Completion included
1 free signing for new users · No credit card required
Get Started — $10/envelopePro
$149
/month
1 person · unlimited signings
- Unlimited documents & signings
- Advanced audit logs & API
- DOD-grade compliance
- Dedicated support
All plans include blockchain verification at no extra cost.
$10
Per envelope
<1s
Blockchain confirmation
50+
Countries recognized
100%
Tamper-proof
What Sets Us Apart
Traditional platforms trust their own servers. We trust the blockchain.
| Feature | Traditional E-Sign | OnChainESign |
|---|---|---|
| Record storage | Vendor servers | ✅ Blockchain (permanent) |
| Tamper evidence | Internal audit log | ✅ SHA-256 hash on-chain |
| Public verification | ❌ Trust the vendor | ✅ Anyone, anytime |
| Timestamp authority | Vendor's servers | ✅ Decentralized consensus |
| Multi-party signing | ✅ | ✅ With role-based tracking |
| Pricing | $15–$45/mo | ✅ $10/envelope or $149/mo Pro |
Legally Binding Worldwide
Recognized under e-signature laws in 50+ countries
United States
ESIGN Act & UETA
European Union
eIDAS Regulation
United Kingdom
ECA 2000
Canada
PIPEDA & UECA
NIST SP 800-171
FIPS 180-4
ALTA Best Practices
RON Compatible
Built for Every Industry
Real Estate
Contracts, leases, disclosures
Legal
NDAs, retainers, settlements
Business
Agreements, SOWs, offers
Finance
Loans, compliance, openings
How It Works
Five steps — no technical knowledge needed
1. Upload
Upload any PDF.
2. Add Parties
Name your signers.
3. Place Fields
Click to place fields.
4. Sign
Signers get secure links.
5. Verify
Blockchain certificate.
Under the Hood: Blockchain Security
Four layers of cryptographic protection for every signature
SHA-256 Tamper-Proofing
Every document gets a unique digital fingerprint. Change one pixel after signing and the hash completely changes — proving tampering instantly.
Consensus Timestamping
Thousands of independent validators confirm exactly when you signed. No single server to manipulate — the network is the witness.
Permanent Immutability
Once your document hash is on Solana, nobody can edit or delete it — not us, not you, not anyone. Your proof exists forever.
Public Verification
Anyone can verify a signature using Solana Explorer. Re-compute the hash, compare it on-chain — no middleman needed.
Why This Matters
In Court
A blockchain timestamp is stronger evidence than a notary stamp — it cannot be forged.
In Disputes
Hash comparison instantly proves whether a document was altered after signing.
For Compliance
Meets ESIGN Act and UETA requirements for electronic record retention.
Peace of Mind
The math is the proof — not a company's promise to keep servers secure.
Start Signing Today
1 free signing to start · No credit card required · Set up in 60 seconds
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