{
  "schema": "chainpuls-bdag-deployment-preflight/v2",
  "executedAt": "2026-09-13T15:35:42Z",
  "release": "0.6.0",
  "transactionSigned": false,
  "transactionBroadcast": false,
  "valueTransferred": "0 BDAG",
  "selectedLineage": "engineering-lineage",
  "chainId": 1404,
  "referenceBlock": 316002,
  "referenceHash": "0xcd4d2568e9cba6725329e8cf6d96217ace7acb03d71d9b519c8b2560bb6bb781",
  "compiler": {
    "version": "0.8.37+commit.f401782d.Emscripten.clang",
    "evmVersion": "london",
    "optimizerEnabled": true,
    "optimizerRuns": 200
  },
  "compatibilityFinding": {
    "rejectedCandidate": "0.4.0",
    "rejection": "The pre-London candidate used the unsupported PUSH0 opcode and was rejected during eth_estimateGas.",
    "remediation": "Release 0.6.0 explicitly targets the pre-Shanghai London EVM and prohibits PUSH0 in independently parsed runtime bytecode.",
    "rejectedCandidateDeployed": false
  },
  "branchCorrection": {
    "supersededRelease": "0.5.0",
    "reason": "Release 0.5.0 selected the BDAGScan/blockdag.works history instead of the intended Engineering history.",
    "supersededReleaseDeployed": false,
    "contractBytecodeChanged": false
  },
  "deployment": {
    "creationCodeHash": "0x2ea1159c7e95618bc77878e4687f8e8875b79906e3bb7c777ad7325b0e37b044",
    "runtimeCodeHash": "0x1d4502e416935422ea9898db76e538c8519e190030daa56a7062f5f29a36dd42",
    "value": "0x0",
    "estimatedGas": 139933,
    "observedGasPriceWei": 500000000007
  },
  "engineeringEvidence": [
    {
      "type": "json-rpc",
      "url": "https://rms-bdag-rpc.de/api/rpc-live",
      "result": "pass",
      "observedHead": 21091933,
      "referenceHash": "0xcd4d2568e9cba6725329e8cf6d96217ace7acb03d71d9b519c8b2560bb6bb781",
      "deploymentEstimatedGas": 139933,
      "gasPriceWei": 500000000007
    },
    {
      "type": "json-rpc",
      "url": "https://rpc.welshdag.trade",
      "result": "pass",
      "observedHead": 21091931,
      "referenceHash": "0xcd4d2568e9cba6725329e8cf6d96217ace7acb03d71d9b519c8b2560bb6bb781",
      "deploymentEstimatedGas": 139933,
      "gasPriceWei": 500000000007
    },
    {
      "type": "blockscout-rest",
      "url": "https://explorer.blockdag.engineering/api/v2/blocks/316002",
      "result": "pass",
      "referenceHash": "0xcd4d2568e9cba6725329e8cf6d96217ace7acb03d71d9b519c8b2560bb6bb781",
      "stateRoot": "0x438adec0b020eb128be123444c10bd8078fe5ac69efa61de01d23bd0d9eaed21"
    }
  ],
  "blockedAlternativeHistory": {
    "endpoints": [
      "https://rpc.bdagscan.com",
      "https://rpc.blockdag.works"
    ],
    "referenceHash": "0xe2c7a9b0ff6206e6ac93f2cceead3992e081a4be64f5a5975d6e2158cc02a824",
    "reason": "Reference block 316002 does not match the Engineering Explorer."
  },
  "conclusion": "Three independent Engineering-facing observations agree on the selected historical fingerprint. Both Engineering JSON-RPC endpoints successfully simulated the complete zero-value deployment bytecode. Repeat all checks immediately before signing."
}