{
  "id": 7942,
  "title": "EIP-7942: Available Attestation",
  "status": "Draft",
  "type": "Standards Track",
  "category": "Core",
  "summary": "This is a comprehensive solution to eliminate all known reorganization attacks on Ethereum. Instead of fixing attacks one-by-one, Available Attestation redesigns how consensus works to make reorg attacks fundamentally impossible.",
  "impacts": [
    "Eliminates the possibility of transaction censorship and reorg attacks, providing guaranteed transaction inclusion and much stronger finality guarantees.",
    "Can build applications with stronger security assumptions, eliminate MEV-related edge cases, and provide users with guaranteed transaction execution properties.",
    "Can provide stronger transaction finality guarantees and eliminate concerns about transaction reordering after inclusion.",
    "Major updates needed for consensus monitoring, reorg detection systems, and fork choice analysis tools to handle the new attestation mechanisms.",
    "Dramatically improves bridge security by eliminating L1 reorg risks and enables more aggressive optimization of settlement mechanisms.",
    "Fundamental changes to attestation behavior and fork choice logic, but eliminates complex reorg-related edge cases in validator operations.",
    "Major implementation work required for new attestation mechanisms, modified fork choice logic, and consensus layer protocol changes.",
    "Need to coordinate with new consensus mechanisms but most changes are in the consensus layer attestation logic.",
    "Eliminates all known reorganization attacks permanently",
    "Provides formal security guarantees with mathematical proofs",
    "Strengthens transaction inclusion and finality properties",
    "Enables more aggressive scaling without security trade-offs"
  ],
  "discussion_url": "https://ethereum-magicians.org/t/eip-7942-available-attestation-a-reorg-resilient-solution-for-ethereum/23927",
  "source_markdown_url": "https://github.com/ethereum/EIPs/blob/master/EIPS/eip-7942.md",
  "canonical_url": "/latest/eips/7942.json",
  "markdown_url": "/latest/eips/7942.md",
  "citations": [
    {
      "recordId": "eip-7942",
      "artifactPath": "normalized/7942.json",
      "url": "/records/proposal/eip-7942/normalized/7942.json",
      "label": "EIP-7942: Available Attestation",
      "snippet": "This is a comprehensive solution to eliminate all known reorganization attacks on Ethereum. Instead of fixing attacks one-by-one, Available Attestation redesigns how consensus works to make reorg attacks fundamentally im"
    }
  ]
}