Enterprise E-Signature Architecture

Features Engineered for Legal Certainty

Every component in SignExact is built to eliminate ambiguity, provide non-repudiation, and uphold federal and state statutory standards.

Sub-Millimeter 72-DPI Coordinate Translation

Most e-signature web tools use browser DOM pixels for field placement, causing stamps to drift or distort when converted to PDF pages. SignExact solves this with a mathematical coordinate translation engine:

Translates browser viewport coordinates directly into 72-DPI PostScript points.
Inverts web top-left origins into true PDF bottom-left cartesian coordinates.
Supports signatures, dates, initials, full legal names, and multi-line typing fields.

COORDINATE MAPPING TELEMETRYCALIBRATED

// Web Input (Viewport Box):

{ x: 120, y: 350, width: 180, height: 50 }

// Translated PDF 72-DPI Coordinate:

{ pdfX: 91.80, pdfY: 486.00, pdfW: 137.70, pdfH: 38.25 }

// Roundtrip Variance: ±0.00 pt

Statutory Pre-Execution Gate

15 U.S.C. § 7001(c) Consumer DisclosuresSatisfied

Signers are guaranteed the statutory right to withdraw electronic consent, review clear consumer hardware/software requirements, and print a physical paper copy at any stage of the execution workflow.

Print Copy AvailableReview & Sign

Built-In Print & Sign Compliance

Federal law explicitly governs electronic disclosures. Rather than hiding disclosure terms in microscopic footnotes, SignExact surfaces clear, compliant print and review actions before any agreement is finalized.

Explicit paper-copy accessibility prior to document execution.
Affirmative consumer electronic consent logging with cryptographic timestamping.
Hybrid signing support: sign electronically or print, sign with wet ink, and scan.

Tamper-Evident SHA-256 Hash Chaining

Generic e-sign tools store event logs in private database tables that can be modified or purged. SignExact applies cryptographic blockchain-style chaining to every event record:

Genesis hash computed upon initial PDF upload: sha256(envelopeId + '-GENESIS').
Every subsequent action hashes the previous hash, timestamp, actor email, IP address, and details.
Mathematical impossibility of retroactively modifying any history row without breaking the chain.

POSTGRESQL fn_process_audit_hash() TRIGGER&check; CHAIN VALIDATED

Seq 1 [created]: current_hash = d592d59e... (prev: 20d829dd...)

Seq 2 [viewed]: current_hash = 85b6258f... (prev: d592d59e...)

Seq 3 [consent]: current_hash = efb577d9... (prev: 85b6258f...)

Seq 4 [signed]: current_hash = 2f8ce7f9... (prev: efb577d9...)

Certificate of CompletionSTATUS: COMPLETED

Envelope Title:Mutual NDA & IP Protection Agreement

SHA-256 Digest:c4ef74ede7ec642f47b103121ad8d...

Signer Telemetry:IP 64.181.236.32 • Chrome MacOS

Digital Seal:X.509 PAdES Validated

Self-Authenticating Completion Certificates

When all signers finish, SignExact appends a 2-page forensic Certificate of Completion directly to the signed document. This creates a self-contained, standalone record that courts and counterparties can verify without accessing SignExact servers.

Forensic IP address, timestamp, and browser user-agent attribution.
Permanent statutory ESIGN § 7003 disclaimer language.
Complete SHA-256 audit ledger sequence printed directly on the certificate.

Experience Precision Document Execution

Get started today with 10 free envelopes. No credit card required.

Get Started Free