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Overview

  • Type: Singleton (one per network)
  • Purpose: Store evidence for refund disputes on-chain
  • Address: 0xF97aAB816b7cbe53025454ad05b03cf5C361F1BA (all chains)

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Features

  • IPFS CID storage - Stores content hashes on-chain for evidence trails
  • EIP-712 signature approval - Arbiter can approve refunds via off-chain signatures (gas-free for arbiters)
  • Evidence indexing - Evidence is indexed by payment and submitting party
  • Multi-party submission - Both payer and receiver can submit evidence

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How It Works

When a refund is disputed, parties submit evidence (documents, screenshots, logs) to IPFS and record the CID on-chain. The arbiter reviews evidence off-chain and submits an EIP-712 approval signature that anyone can relay. This keeps dispute resolution costs low — the arbiter never needs to submit an on-chain transaction.