Born in the 305 • The Global Standard for Self-Certified Freight

Immutable Cargo Verification. Zero Dispute Claims.

Eliminate transit disputes and surveyor overhead. Proof 305 empowers shippers and receivers to self-certify container condition with cryptographic audit trails from origin directly to PortMiami.

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ISO 6346 OCR ISO 17712 SEAL PROTOCOL WORM CRYPTOGRAPHIC LOG PORTMIAMI & 3PL READY
Digital Certificate of Condition VERIFIED
MSKU 729104-8
ISO 6346 • 40' HC REEFER
ISO 17712 Bolt SealMATCHED
Temperature-0.5°C · Verified
GPS Lock25.7781° N · 80.1794° W
Door GasketINTACT
Origin ↔ Destination0 DISCREPANCIES
SHA-2569f2c7a1e4b88d0c3…e51a07b3d92f64c8

Illustrative sample certificate

The Cargo Liability Gap

Millions of TEUs. Almost no usable evidence.

PortMiami and Miami-Dade distribution hubs move millions of TEUs every year. When freight arrives damaged, sealed wrong, or out of temperature, the dispute that follows is decided by whoever can prove condition. Most can't.

The Legacy Mess

WhatsApp photos and phone calls

  • Unorganized WhatsApp photos with no evidentiary value
  • $150–$400+ surveyor call-outs per container
  • Missing or editable metadata: time, place, container
  • Weeks lost to insurer claim rejections
The Proof 305 Protocol

A guided inspection that holds up

  • 3-minute guided mobile workflow
  • Tamper-evident GPS and timestamp capture
  • Instant discrepancy alerts at the receiving dock
  • Verifiable PDF and API audit export

How It Works

Two sides. One shared record.

The shipper certifies at origin. The receiver counter-inspects before the seal is broken. The two records are cross-checked automatically.

Shipper or packer at the point of loading.

01

Container OCR

The camera reads the ISO 6346 container ID and validates its check digit. No manual typing.

02

Door gasket check

A guided checklist walks through doors, gaskets and floor with required photos.

03

Reefer setpoint capture

Records setpoint and supply and return temperatures for cold chain cargo.

04

High-security bolt seal scan

Scans and records the ISO 17712 seal number and its condition at closing.

05

Cryptographic lock

Everything is timestamped, geolocated and sealed with a SHA-256 hash that can't be edited afterward.

Features

Built for evidence, not just photos.

Computer Vision & ISO 6346 OCR

Reads container IDs and verifies the check digit on the spot, so the record is tied to the right box.

Cryptographic Audit Trail

Every inspection is hashed with SHA-256 and written to an append-only log. Changes after the fact are detectable.

Cold Chain & Temperature Assurance

Captures reefer setpoint and readings at origin and destination to document temperature compliance.

P2P Custody Handshake

Shipper and receiver confirm each other's records. Custody changes hands with both sides on the record.

Insurance & Subrogation Export

One-click PDF and structured data export formatted for claims adjusters and recovery.

WMS & Forwarder API

Push certificates into your warehouse system or forwarder platform without re-keying data.

Miami Gateway

Made for South Florida's freight hub.

PORTMIAMI • DOWNTOWN

Perishable & Reefer Importers

Prove temperature and seal condition at the moment of receipt, before the claim window closes.

DORAL • MEDLEY • AIRPORT WEST

Freight Forwarders & 3PL Warehouses

Standardize receiving, protect your liability position and cut third-party surveyor spend.

UNDERWRITING & CLAIMS

Marine Underwriters & Claims Adjusters

Get timestamped, location-verified evidence that shortens investigation and supports subrogation.

Verification Standard

Aligned to the standards freight already runs on.

Proof 305 builds on established identification and sealing standards, and adds an integrity layer on top so the record can be trusted by every party in the chain.

ISO 6346

Container identification and check digit validation through OCR.

ISO 17712

High-security mechanical seal capture and matching.

SHA-256

Cryptographic fingerprint of each inspection record.

WORM

Write-once, read-many log: records are added, never rewritten.

Beta Pilot Program

Pilot Proof 305 in Your Operations

We're opening the fee-waived Beta to the first 50 logistics operators, forwarders and importers in Florida.

  • No fees during the pilot
  • Use it on your real shipments, on iOS, Android or web
  • Direct input on features and integrations
Application received.We'll be in touch shortly to schedule your onboarding.