Blockchain-anchored evidence

Plans & Pricing

Begin with limited baseline documentation, then adopt higher evidentiary rigor as risk exposure and dispute likelihood increase.

SHA-256 Fingerprinting Polygon Blockchain Bitcoin Anchoring Ed25519 Certificate Signing Files never stored
Baseline
Baseline Access
Free, permanent documentation for initial pre-loss records.
$ 0 / month
  • 5 Polygon proofs (lifetime)
  • Full certificate & public verification
  • Shareable verification links, valid forever
  • Bitcoin anchoring available at $7.99/proof
Standard
Standard Evidence Access
Routine pre-loss documentation where baseline evidentiary continuity is required.
$ 9.99 / month
  • 100 Polygon proofs per month
  • Standard Proof Certificates
  • Faster Polygon batch processing
  • Public independent verification links
  • Bitcoin anchoring add-on at $7.99/proof
Elevated
Elevated Evidence Access
Sustained documentation under elevated dispute and audit exposure.
$ 49.99 / month
  • High-volume Polygon proofs
  • Escalation Proof Certificates
  • Downloadable certificate packages (JSON)
  • Priority anchoring and batch confirmation
  • Bitcoin anchoring add-on at $5.99/proof
Formal
Formal Legal / Compliance
For organizations under formal legal, insurance, or regulatory scrutiny.
$ 99.99 / month
  • Unlimited Polygon proofs
  • API access — REST programmatic submission
  • Organization accounts with team management
  • Merkle inclusion proof downloads (Bitcoin)
  • Full audit export (JSON) for discovery
  • Bitcoin anchoring at $3.99/proof
  • Priority support & onboarding
Enterprise
Built for carriers and large organizations

Custom SLAs, volume pricing, private deployment, and dedicated onboarding for high-throughput evidence workflows.

Custom pricing
Contact Sales
Everything in Formal Custom volume pricing SLA guarantee Dedicated onboarding Private deployment Negotiated API limits
Included in every plan
SHA-256 fingerprinting
Polygon blockchain anchoring
Ed25519-signed certificates
Public verification, permanent
Files never leave your device
Bitcoin anchoring available

"Unlimited" and "High-volume" are subject to fair-use limits to protect platform stability. Certificates are human-readable representations — blockchain anchors and public verification remain the authoritative record.

Reference

Pre-loss temporal authority documentation is the practice of recording evidence at the moment of creation, cryptographically fixing its state in time before disputes, incentives, or claims exist. These systems establish when a record existed and what state it was in using repeatable, tamper-evident procedures that allow independent verification without reliance on the recording system itself.

ProofLedger is an implementation of this approach, designed for high-liability environments where contemporaneous, pre-loss records must remain verifiable long after they are created.