Evidence row 66655

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.ishob.com/v1/crypto/simulate-tx"
    ]
  ],
  "name": "ISHOB",
  "owner_address": "0x906f87f107b4675dd890b3f8eb2d51885e50e09d",
  "raw": {
    "accepts": [
      {
        "amount": "1500",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0x906F87F107B4675dD890b3f8EB2d51885E50e09d",
        "scheme": "exact"
      }
    ],
    "description": "Simulate a transaction before signing it: what leaves and enters the wallet (native, ERC-20, NFTs, SPL) with USD values, approvals granted (unlimited / to non-contracts), revert reason, gas and fee, plus a risk level. EVM chains via eth_simulateV1 (raw call: from, to, data, value); Solana via simulateTransaction (base64 transaction, unsigned is fine). Nothing is broadcast.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "chain": "ethereum",
              "data": "0xa9059cbb000000000000000000000000906f87f107b4675dd890b3f8eb2d51885e50e09d00000000000000000000000000000000000000000000000000000000000f4240",
              "from": "0x28c6c06298d514db089934071355e5743bf21d60",
              "to": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
              "value": "0"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "approvals": [],
              "balance_changes": [
                {
                  "amount": "-0.01",
                  "direction": "out",
                  "symbol": "ETH",
                  "usd": -24.9
                },
                {
                  "amount": "24.894345",
                  "direction": "in",
                  "symbol": "USDC",
                  "usd": 24.89
                }
              ],
              "gas_used": 276293,
              "risk_level": "low",
              "success": true,
              "warnings": []
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "chain": {
                      "enum": [
                        "ethereum",
                        "base",
                        "arbitrum",
                        "optimism",
                        "polygon",
                        "bsc",
                        "solana"
                      ],
                      "type": "string"
                    },
                    "data": {
                      "description": "EVM: calldata hex (default 0x)",
                      "type": "string"
                    },
                    "from": {
                      "description": "EVM: sender address",
                      "type": "string"
                    },
                    "gas": {
                      "description": "EVM: optional gas limit",
                      "type": "string"
                    },
                    "to": {
                      "description": "EVM: target address",
                      "type": "string"
                    },
                    "transaction": {
                      "description": "Solana: base64-encoded transaction (legacy or v0; signatures not required)",
                      "type": "string"
                    },
                    "value": {
                      "description": "EVM: value in wei (decimal or 0x hex)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "chain"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-14T16:24:34.236Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-14T16:24:34.014Z"
    },
    "resource": "https://api.ishob.com/v1/crypto/simulate-tx",
    "serviceName": "ISHOB",
    "tags": [
      "research",
      "scientific-literature",
      "open-access",
      "dataset",
      "json"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Simulate a transaction before signing it: what leaves and enters the wallet (native, ERC-20, NFTs, SPL) with USD values, approvals granted (unlimited / to non-contracts), revert reason, gas and fee, plus a risk level. EVM chains via eth_simulateV1 (raw call: from, to, data, value); Solana via simulateTransaction (base64 transaction, unsigned is fine). Nothing is broadcast."
}

What the leaf hashes

{"body":"a84897fab8aecd5f01b88015e20f42cd6f702b638cc122df384b907fe82e37d4","id":66655,"kind":"listing","method":"baseline/1","observed_us":1793025461232627,"prev":null,"subject":"x402_bazaar:https://api.ishob.com/v1/crypto/simulate-tx","subject_kind":"source_record"}

Proof

Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.