Cryptographic E-Signatures & Audit Trail
Legally binding e-signatures with SHA-256 integrity hashes and zero envelope gouging.
Collect binding electronic signatures with cryptographic audit trails including signer IP address, UTC timestamp, User-Agent, and payload hash. Never pay $40/month for 5 signature envelopes again.
DocFlexa workspace
Cryptographic E-Signatures & Audit Trail
Smooth signature canvas with high-resolution vector capture and clear/redraw controls
Cryptographic SHA-256 integrity hash computed on document completion
Tamper-evident audit certificate appended to all completed PDF records
Dual-Audience Architecture
How it powers both Personal Life and Business Workspaces
Sign tenancy agreements, roommate contracts, bill-of-sale documents, and permission slips with zero subscription friction.
- Sign on touchscreens, smartphones, tablets, or desktop mice
- Download completed, signed PDF certificates for your records
- Permanent storage in your personal cloud vault
Execute customer agreements, contractor NDAs, and milestone sign-offs with full legal audit defensibility.
- Collect client and counter-party signatures in a single unified flow
- Audit trail logs signer identity, timestamp, IP address, and document hash
- Eliminate expensive DocuSign per-envelope overage fees forever
Step-by-Step Architecture
How this workflow executes end-to-end
Interactive Pad
Signer draws or types their signature directly inside the responsive web canvas.
Metadata Capture
Client IP, User-Agent, timestamp, and active field state are captured.
SHA-256 Hashing
SignatureVerificationService computes a tamper-evident SHA-256 hash of all completed fields.
Sealed Certificate
An AuditLog event is permanently recorded and the signed PDF is uploaded to your BYOS vault.
Frequently Asked Questions
Everything you need to know
Are DocFlexa signatures legally binding?
Yes. DocFlexa signatures comply with the US Electronic Signatures in Global and National Commerce (ESIGN) Act, the Uniform Electronic Transactions Act (UETA), and EU eIDAS regulations.
Ready to launch your workflow on DocFlexa?
Create unlimited personal documents or scale your team workspace with zero data lock-in and seamless cloud backups.