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Platform Features

The signing workflow,
with proof built in

Upload, place fields, collect signatures, track every step. Then LedgerSign anchors the finished document to a public blockchain, so you can still prove what was signed years from now.

Blockchain Verification

Every signed document is cryptographically hashed and anchored to a public blockchain. The result is permanent, immutable proof of exactly what was agreed.

  • SHA-256 fingerprint of the final signed document
  • Timestamped record on a public ledger
  • Instant, independent verification for third parties
  • Verification certificate bundled with every document

Verification certificate

✓ verified
document
master-services-agreement.pdf
sha-256
7f3a92c1…de10e04d
anchored
2026-07-24 14:02:11 UTC
ledger
public blockchain

Tamper-Proof Documents

Change a single byte after signing and the fingerprints no longer match. Nobody has to hunt for alterations; they announce themselves.

  • Hash-based integrity checks
  • Any modification is instantly evident
  • Original fingerprint preserved on-chain forever
  • Court-ready evidence of integrity

Original document

✓ match

sha-256 7f3a92c1…de10e04d

Altered copy

✗ mismatch

sha-256 c09b41ee…82aa17f3

Multi-Party Signing

Collect signatures from every stakeholder. Set a signing order, or let everyone sign at once.

  • Sequential or parallel signing workflows
  • Automatic reminders and notifications
  • Unique, access-controlled link per signer
  • Real-time status tracking
  • 1

    Counterparty

    Signed

  • 2

    Legal review

    Signed

  • 3

    Managing partner

    Awaiting signature

Comprehensive Audit Trails

Full visibility into every action taken on your documents, captured in a detailed, exportable audit log.

  • Who signed, and exactly when
  • IP address and location capture
  • Device and browser information
  • Complete action history per document

Audit trail

  1. document.completed

    14:02:11 UTC · ip 203.0.113.•

  2. recipient.signed

    14:01:58 UTC · ip 203.0.113.•

  3. document.viewed

    13:47:31 UTC · ip 203.0.113.•

  4. document.sent

    13:45:04 UTC · ip 203.0.113.•

  5. document.created

    13:41:22 UTC · ip 203.0.113.•

Enterprise-Grade Security

Encryption and layered access controls protect your documents in transit, at rest, and at the point of signing.

  • Encryption in transit and at rest
  • Time-limited, presigned document access
  • Role-based access controls per organization
  • ESIGN & UETA consent capture

TLS

in transit

AES

at rest

RBAC

access

ESIGN

consent

Developer-Friendly API

A REST API with webhooks lets you fold signing and blockchain verification directly into your own product.

  • RESTful API for documents, recipients & templates
  • Webhooks for real-time signing events
  • Secure API keys with per-plan request limits
  • Comprehensive documentation
terminal
$ curl -X POST /api/v1/documents \
    -H "Authorization: Bearer $KEY"

201 Created
{
  "status": "sent",
  "recipients": 3,
  "webhook": "registered"
}

And the details that add up

The rest of the platform, tuned for busy teams.

Global Accessibility

Sign and verify documents from anywhere in the world

Document Status Tracking

Follow every document from draft to completed in real time

Reusable Templates

Turn recurring agreements into one-click sends

Legally Binding

E-signatures with ESIGN & UETA consent capture built in

Get Started with LedgerSign

Make your next signature
impossible to dispute

Start free and send your first blockchain-verifiable document in minutes.

Get Started FreeTalk to Sales

No credit card required · Free plan includes 5 documents to try · Cancel anytime