vouch.
Vouch · ESIGN / UETA

The signature. Done properly.

E-signatures with a complete, tamper-evident audit trail. Hash-chained and verifiable. Included on every plan.

Start free →See pricingFree for 5 documents a month. No card. Pricing
On site

A change order

Change order on site. Sent in two minutes. Materials ordered before the next coffee.

Freelance

Contract first.

Scope, payment terms, kill fee. Sent before the first draft.

Photography

Sent before the shoot

Contract sent before the shoot starts. Always.

Landlord

Every renewal

Lease renewal, sent at 6am. Signed back by breakfast.

Sign free.
Upgrade when it’s busy.

Free · Business $10/mo ($6 yearly) · API $39/mo ($29 yearly) · White label $129/mo ($99 yearly)

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The audit trail

What’s in every audit trail.

The same evidence package on every plan. Plans differ on volume, branding and the API — never on the legal record.

01

Affirmative consent, per signer.

Each signer agrees to sign electronically before they touch a field. Timestamped, IP-stamped, bound into the chain.

ESIGN §7001(c)
02

IP, user-agent, link binding.

Every action is tied to the invited mailbox. The signature has an address.

UETA §9
03

SHA-256 chain, append-only.

Modify any row and the rows that follow break the chain. Tampering is detectable instantly.

FRE 901(b)(9)
04

The signed PDF, hashed three ways.

Database, chain, certificate — all three must agree, or the document fails verification.

FRE 901(b)(4)
05

Server-side timestamps, always.

All timestamps are UTC from our server. Client-claimed times are recorded but never trusted.

Authoritative
06

Certificate of completion.

Multi-page cover sheet — parties, timestamps, hashes, IPs, full event history. Auto-attached.

Standard practice
07

Per-page document ID.

Every page of the signed PDF carries the doc ID, a short hash, and the page number.

Binder evidence
08

Decline + withdrawal path.

A signer can decline at any point. The decline is captured as its own audit event.

ESIGN §7001(c)(1)(B)
09

Public chain verification.

The sender downloads the full chain and recomputes it end-to-end with any SHA-256 tool. Anyone can check the final hash publicly.

Independently verifiable

Building it into your product? See the API.

Send your first document — free.

Five free documents a month. Full audit trail. No credit card.

Start free →