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Blockchain

Provenant: Supply-chain provenance network

A shared, tamper-evident batch record that lets growers, shippers and buyers verify origin without a central gatekeeper.

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Sector
Food & Agriculture
Typical client
Producer cooperative selling to international buyers
Typical timeline
18 weeks
Typical team
3 engineers, 1 designer
Producer and buyer app for recording batches and verifying origin on chain
On-chain batch registry with custody transfers and contract activity
Origin map linking producers, mills and export routes

About this project

Buyers increasingly want proof of where produce comes from, and paper certificates are easy to lose or forge. Small producers need a way to prove quality without complex technology.

Provenant records each custody step on a public blockchain through a simple mobile app. Producers never handle cryptography directly, and buyers can verify a batch by scanning a code.

Objectives

  • Create a shared record that no single party controls
  • Make verification simple for non-technical buyers
  • Keep commercially sensitive data off-chain

What’s delivered

  • Batch registry contracts on an Ethereum layer 2
  • Off-chain document storage with on-chain hashes
  • Mobile capture for growers and shippers
  • QR-based public verification page

Target outcomes

<10s

buyer verification goal

<$0.05

per-record cost target

100%

invariant-tested contracts

0

sensitive data on-chain

Technology

  • Solidity
  • Foundry
  • Base
  • The Graph
  • Next.js

Services involved

More work like this

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