Blockchain-verified e-signature software Signed in minutes.
Provable forever.
LedgerSign is e-signature software that seals every completed document with a SHA-256 fingerprint anchored on the Hedera public blockchain. Anyone can verify it. No one can rewrite it.
- Blockchain verification on Hedera
- Tamper-evident audit trail
- ESIGN & UETA consent capture
- Encrypted storage
Anchored on Hedera
sha-256 · 7f3a…e04d
How does blockchain verification
of a signed document work?
A signed PDF from anyone else is just a file. A signed PDF from LedgerSign carries mathematical proof of what was signed and when, recorded on a public ledger that LedgerSign does not control.
Fingerprint
sha-256(document)
The moment signing completes, the final PDF is hashed with SHA-256. That hash is a unique cryptographic fingerprint of exactly what everyone agreed to.
Anchor
hedera topic message
That fingerprint is written to the Hedera Consensus Service as a timestamped public message. Once anchored, the record is permanent. No one, including us, can alter it.
Verify
match ✓ verified
Anyone can re-hash the document and compare it against the on-chain record. If a single byte changed, the fingerprints will not match.
Every anchor is a public Hedera transaction. Open it on HashScan, read the fingerprint written there, and compare it with your own copy. Our explainer on hashing and anchoring walks through the mechanism, and the free verify tool runs the check in your browser with no account.
Everything an e-signature tool should do,
plus proof
Built for teams that answer to auditors, regulators, and courts, without slowing down the deal.
Every feature in detailBlockchain Verification
Every completed document is hashed with SHA-256 and anchored on Hedera, a public blockchain. The result is independently verifiable proof of integrity that no vendor, including us, can quietly change.
Verification certificate
sha-2567f3a…e04d- Status
- ✓ verified
- Network
- hedera
- Record
- immutable
Tamper-Proof Documents
Change a single byte and the fingerprint no longer matches. Alterations reveal themselves instantly.
Verify a documentMulti-Party Signing
Sequential or parallel workflows, signing order, and automatic reminders for every stakeholder.
See the signing flowAudit Trails
Who signed, when, and from where. Every action is captured in a court-ready audit log.
What the audit trail recordsEnterprise-Grade Security
Encryption in transit and at rest, role-based access, and secure presigned document delivery.
Security detailsAPI-First Platform
REST API and webhooks to fold signing and verification into your own product and workflows.
For developersFrom upload to on-chain proof
in five steps
A signing flow your counterparties will actually finish. Verification happens automatically at the end.
See the full tour- 01
Upload your document
Drag and drop a PDF, or start from a saved template. Your file is encrypted from the first byte.
- 02
Add recipients and fields
Place signature, date, and text fields exactly where they belong. Set signing order for multi-party agreements.
- 03
Share secure signing links
Each signer gets a unique, access-controlled link by email. No account required to sign.
- 04
Fingerprinted and anchored
When the last signature lands, the document is hashed and anchored to the blockchain automatically.
- 05
Download proof that lasts
Get the signed PDF and its verification certificate. Anyone can check it, at any time, without asking us.
Questions people ask about blockchain e-signatures
Short answers first. The linked pages go deeper.
Is LedgerSign a legally binding e-signature tool?
Yes. LedgerSign captures each signer's consent to use electronic records before they sign, records intent with a typed or drawn signature, and keeps the completed document with its audit trail, which is what the U.S. ESIGN Act and UETA require. Read what makes an electronic signature legally binding.
What does blockchain verification actually prove?
It proves the document has not changed since it was signed. The SHA-256 hash of the final PDF is written to the Hedera public blockchain with a consensus timestamp. Anyone can re-hash the file and compare. It does not, by itself, prove who the signer was; that is what the consent record and audit trail are for. See how the two layers fit together.
Do signers need a crypto wallet or any blockchain knowledge?
No. Signers open an emailed link, consent, and sign in the browser. LedgerSign submits the anchor to Hedera and pays the network fee. The only blockchain artifact a signer ever sees is a transaction id on the Certificate of Completion.
Which plans include blockchain verification?
Business ($149/month), Pro ($299/month), and Enterprise. Free and Growth include the standard signing workflow without anchoring. Every plan is listed with its limits on the pricing page.
How is LedgerSign different from DocuSign or PandaDoc?
The signing workflow is comparable: templates, signing order, fields, reminders, audit trails. The difference is the proof layer. LedgerSign anchors a hash of each completed document on a public ledger, so a third party can confirm authenticity without relying on the vendor's own log. Start with what a blockchain e-signature is.
Can I check a LedgerSign document without an account?
Yes. Hash the PDF, compare it with the hash on the certificate, and open the transaction id on HashScan. Our free verify tool does all three steps in your browser and never uploads the file.
Make your next signature
impossible to dispute
Start free and send your first blockchain-verifiable document in minutes.
No credit card required · Free plan includes 5 documents to try · Cancel anytime
Page updated September 13, 2026