---
layout: default
---

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    <title>Alert</title>
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    <title>Source</title>
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  <svg id="bi-chat" fill="currentColor" viewBox="0 0 16 16">
    <title>Discuss</title>
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<div class="home">
  <span class="h5">
    {% if page.status == "Stagnant" %}
      <span class="badge text-light bg-danger" data-bs-toggle="tooltip" data-bs-title="This EIP had no activity for at least 6 months. This EIP should not be used.">🚧 Stagnant</span>
    {% endif %}
    {% if page.status == "Withdrawn" %}
      <span class="badge text-light bg-danger" data-bs-toggle="tooltip" data-bs-title="This EIP has been withdrawn, and should not be used.">🛑 Withdrawn</span>
    {% endif %}
    {% if page.status == "Draft" or	page.status == "Review" %}
      <span class="badge text-light bg-warning" data-bs-toggle="tooltip" data-bs-title="This EIP is not yet recommended for general use or implementation, as it is subject to normative (breaking) changes.">⚠️ {{ page.status }}</span>
    {% endif %}
    {% if page.status == "Last Call" %}
      <span class="badge text-light bg-success" data-bs-toggle="tooltip" data-bs-title="This EIP is in the last call for review stage. The authors wish to finalize the EIP and ask you to provide feedback.">📢 Last Call</span>
    {% endif %}
    {% if page.category == "ERC" %}
      <a class="badge text-light bg-primary" data-bs-toggle="tooltip" data-bs-title="Application-level standards and conventions, including contract standards such as token standards, name registries, URI schemes, library/package formats, and wallet formats." href="../erc">Standards Track: ERC</a>
    {% elsif page.category == "Interface" %}
      <a class="badge text-light bg-primary" data-bs-toggle="tooltip" data-bs-title="Improvements around client API/RPC specifications and standards, and also certain language-level standards like method names and contract ABIs." href="../interface">Standards Track: Interface</a>
    {% elsif page.category == "Networking" %}
      <a class="badge text-light bg-primary" data-bs-toggle="tooltip" data-bs-title="Improvements around devp2p and Light Ethereum Subprotocol, as well as proposed improvements to network protocol specifications of whisper and swarm." href="../networking">Standards Track: Networking</a>
    {% elsif page.category == "Core" %}
      <a class="badge text-light bg-primary" data-bs-toggle="tooltip" data-bs-title="Improvements requiring a consensus fork, as well as changes that are not necessarily consensus critical but may be relevant to “core dev” discussions." href="../core">Standards Track: Core</a>
    {% elsif page.type == "Informational" %}
      <a class="badge text-light bg-primary" data-bs-toggle="tooltip" data-bs-title="Describes an Ethereum design issue, or provides general guidelines or information to the Ethereum community, but does not propose a new feature. Informational EIPs do not necessarily represent Ethereum community consensus or a recommendation, so users and implementers are free to ignore Informational EIPs or follow their advice." href="../informational">Informational</a>
    {% elsif page.type == "Meta" %}
      <a class="badge text-light bg-primary" data-bs-toggle="tooltip" data-bs-title="Describes a process surrounding Ethereum or proposes a change to (or an event in) a process. " href="../meta">Meta</a>
    {% endif %}
  </span>
  <h1 class="page-heading">
    {% if page.category == "ERC" %}
      ERC-{{ page.eip | xml_escape }}: {{ page.title | xml_escape }}
    {% elsif page.category != "ERC" %}
      EIP-{{ page.eip | xml_escape }}: {{ page.title | xml_escape }}
    {% endif %}
    <a href="{{ page.discussions-to | uri_escape }}" class="no-underline">
      <svg role="img" aria-label="Discuss" class="inline-svg" xmlns="https://www.w3.org/2000/svg" viewBox="0 0 16 16">
        <use xlink:href="#bi-chat"/>
      </svg>
    </a>
    <a href="{{site.github.repository_url}}/blob/master/{{page.path}}" class="no-underline">
      <svg role="img" aria-label="Source" class="inline-svg" xmlns="https://www.w3.org/2000/svg" viewBox="0 0 16 16">
        <use xlink:href="#bi-code"/>
      </svg>
    </a>
  </h1>
  <h3>{{ page.description | xml_escape }}</h3>
  <table class="table table-borderless preamble">
    <tbody>
      <tr>
        <th scope="row">Authors</th>
        <td>{% include authorlist.html authors=page.author %}</td>
      </tr>
      {% if page.created != undefined %}
        <tr>
          <th scope="row">Created</th>
          <td>{{ page.created }}</td>
        </tr>
      {% endif %}
      {% if page.last-call-deadline != undefined %}
        <tr>
          <th scope="row">Last Call Deadline</th>
          <td>{{ page.last-call-deadline }}</td>
        </tr>
      {% endif %}
      {% if page.status != "Review" and page.status != "Last Call" and page.status != "Final" and page.discussions-to != undefined %}
        <tr>
          <th scope="row">Discussion Link</th>
          <td><a href="{{ page.discussions-to | uri_escape }}" target="__blank">{{ page.discussions-to | xml_escape }}</a></td>
        </tr>
      {% endif %}
      {% if page.requires != undefined %}
        <tr>
          <th scope="row">Requires</th>
          <td>{% include eipnums.html eips=page.requires %}</td>
        </tr>
      {% endif %}
    </tbody>
  </table>
  <br/>

  {% if page.status == "Review" or page.status == "Last Call" %}
    <div class="alert alert-primary d-flex align-items-center" role="alert">
      <svg class="bi flex-shrink-0 me-2" role="img" aria-label="Info:" style="width:2.5em;height:2.5em;"><use xlink:href="#bi-megaphone-fill"/></svg>
      <div class="text-center w-100">
        <a href="{{ page.discussions-to | uri_escape }}" target="__blank">This EIP is in the process of being peer-reviewed. If you are interested in this EIP, please participate using this discussion link.</a>
      </div>
    </div>
  {% endif %}

  <div class="toc">
    <h2>Table of Contents</h2>
    {% include toc.html html=content sanitize=true h_max=3 %}
  </div>

  {% include anchor_headings.html html=content anchorClass="anchor-link" beforeHeading=true %}

  <h2>Citation</h2>
  <p>Please cite this document as:</p>
  {% comment %}
  IEEE specification for reference formatting:
  https://ieee-dataport.org/sites/default/files/analysis/27/IEEE%20Citation%20Guidelines.pdf
  {% endcomment %}
  <p>{% include authorlist.html authors=page.author %}, "{% if page.category == "ERC" %}ERC{% else %}EIP{% endif %}-{{ page.eip | xml_escape }}: {{ page.title | xml_escape }}{% if page.status == "Draft" or page.status == "Stagnant" or page.status == "Withdrawn" or page.status == "Review" or page.status == "Last Call" %} [DRAFT]{% endif %}," <em>Ethereum Improvement Proposals</em>, no. {{ page.eip | xml_escape }}, {{ page.created | date: "%B %Y" }}. [Online serial]. Available: https://eips.ethereum.org/EIPS/eip-{{ page.eip | xml_escape }}.</p>
</div>
{% comment %}
Article schema specification:
https://schema.org/TechArticle
{% endcomment %}
<script type="application/ld+json">
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    "@context": "http://schema.org",
    "@type": "TechArticle",
    {% if page.category == "ERC" %}
    "headline": "ERC-{{ page.eip | xml_escape }}: {{ page.title | xml_escape }}{% if page.status == "Draft" or page.status == "Stagnant" or page.status == "Withdrawn" or page.status == "Review" or page.status == "Last Call" %} [DRAFT]{% endif %}",
    "name": "ERC-{{ page.eip | xml_escape }}: {{ page.title | xml_escape }}{% if page.status == "Draft" or page.status == "Stagnant" or page.status == "Withdrawn" or page.status == "Review" or page.status == "Last Call" %} [DRAFT]{% endif %}",
    {% else %}
    "headline": "EIP-{{ page.eip | xml_escape }}: {{ page.title | xml_escape }}{% if page.status == "Draft" or page.status == "Stagnant" or page.status == "Withdrawn" or page.status == "Review" or page.status == "Last Call" %} [DRAFT]{% endif %}",
    "name": "EIP-{{ page.eip | xml_escape }}: {{ page.title | xml_escape }}{% if page.status == "Draft" or page.status == "Stagnant" or page.status == "Withdrawn" or page.status == "Review" or page.status == "Last Call" %} [DRAFT]{% endif %}",
    {% endif %}
    "author": "{{ page.author }}",
    "dateCreated": "{{ page.created | date: "%Y-%m-%d" }}",
    "datePublished": "{{ page.created | date: "%Y-%m-%d" }}",
    {% if page.discussions-to != undefined %}
    "discussionUrl": "{{ page.discussions-to | uri_escape }}",
    {% endif %}
    "inLanguage": "en-US",
    "license": "#copyright",
    "copyrightYear": "{{ page.created | date: "%Y" }}"
  }
</script>
