{
  "@context": {
    "@language": "en",
    "CIP100": "https://github.com/cardano-foundation/CIPs/blob/master/CIP-0100/README.md#",
    "CIP136": "https://github.com/cardano-foundation/CIPs/blob/master/CIP-0136/README.md#",
    "hashAlgorithm": "CIP100:hashAlgorithm",
    "body": {
      "@id": "CIP136:body",
      "@context": {
        "references": {
          "@id": "CIP100:references",
          "@container": "@set",
          "@context": {
            "GovernanceMetadata": "CIP100:GovernanceMetadataReference",
            "Other": "CIP100:OtherReference",
            "label": "CIP100:reference-label",
            "uri": "CIP100:reference-uri",
            "RelevantArticles": "CIP136:RelevantArticles"
          }
        },
        "summary": "CIP136:summary",
        "rationaleStatement": "CIP136:rationaleStatement",
        "precedentDiscussion": "CIP136:precedentDiscussion",
        "counterargumentDiscussion": "CIP136:counterargumentDiscussion",
        "conclusion": "CIP136:conclusion",
        "internalVote": {
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            "unconstitutional": "CIP136:unconstitutional",
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          "@id": "CIP100:witness",
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            "signature": "CIP100:signature"
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  "hashAlgorithm": "blake2b-256",
  "body": {
    "summary": "We consider this governance action to be constitutional.",
    "rationaleStatement": "This proposal is a Parameter Update Governance Action regarding “Update Plutus Cost Models” submitted by Intersect. The proposal text describes the addition of new Plutus primitives, ensuring consistency between Plutus V1, V2, and V3, updating the cost models of existing primitives, and supporting Protocol Version 11 (the van Rossem hard fork). Regarding Article 2, Section 6, Paragraphs 1 and 2 of the Cardano Constitution, this proposal adopts immutable off-chain references using IPFS. Furthermore, the proposal text details the objectives of the parameter update, technical evaluation, security, performance, sustainability, and consistency with Guardrails; we therefore determine that it presents information sufficient for evaluation as a Governance Action. Regarding Article 2, Section 6, Paragraph 3 of the Cardano Constitution, the main text of this proposal includes references to recommendations by the Intersect Parameter Committee, confirmation by the Intersect Technical Steering Committee (TSC), testnet deployment, security, performance, sustainability, alignment with Guardrails, and benchmark results. Furthermore, discussions regarding benchmarking methods, compatibility risks, risk mitigation measures, and notification plans can be confirmed in the meeting notes and TSC minutes referenced in the proposal text. Based on this, we determine that the sufficient technical review and scrutiny process required by the Cardano Constitution is in place. Additionally, no clear conflict with the Guardrails regarding Plutus Cost Models (costModels) in the Cardano Constitution was identified for this proposal. Regarding PCM-01, the proposal text states that this is a cost model update based on benchmark results, and an explanation of the benchmark methodology can be found in the meeting notes. Regarding PCM-02, the proposal text states that the cost model is being updated in conjunction with the introduction of new Plutus primitives and to ensure consistency between Plutus V1, V2, and V3. Regarding PCM-03a, we verified the cost model parameter changes referenced in the proposal text. Furthermore, the review process for the Plutus cost model update can be confirmed in the meeting notes. Regarding PCM-04, we confirmed that the proposal text lists cost_models corresponding to Plutus V1, V2, and V3. Therefore, as no clear conflict with the Cardano Constitution has been identified, we determine that this proposal is constitutional.",
    "precedentDiscussion": "None",
    "counterargumentDiscussion": "None",
    "conclusion": "For the reasons stated above, we determine that it is constitutional.",
    "internalVote": {
      "constitutional": 4,
      "unconstitutional": 0,
      "abstain": 0,
      "didNotVote": 0
    },
    "references": [
      {
        "@type": "RelevantArticles",
        "label": "CARDANO BLOCKCHAIN ECOSYSTEM CONSTITUTION",
        "uri": "ipfs://bafkreieyuknozbtewyurfqoagvplvykadn6a4u6wglupavdz46bbsnnl6e"
      }
    ]
  },
  "authors": [
    {
      "name": "Cardano Japan Council",
      "witness": {
        "witnessAlgorithm": "ed25519",
        "publicKey": "833ddc6eedc272e763c33b9e6ed91efea5f0a5161f05bf72c83326a9b11507de",
        "signature": "bfcdd9f91946bdebd3aa58074ed14c154167bc45b11bda4cda1317b8d74a38e9f1275702a27ca82d40ff53072b51c946e14704a3257aefc763ddfb88f32dc90d"
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}