Evidence row 74430

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://eltociear-contract-guard.hf.space/check"
    ]
  ],
  "name": "contract-guard",
  "owner_address": "0x5bcda55247b238a573a968b234f788a2d35664dd",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x5bCDA55247B238a573A968B234F788a2D35664Dd",
        "scheme": "exact"
      }
    ],
    "description": "Risk check for an EVM contract/token address",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "chain": "base"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "chain": "base",
              "flags": [
                "..."
              ],
              "is_contract": true,
              "is_proxy": true,
              "risk_level": "HIGH",
              "risk_score": 40,
              "token": {
                "decimals": 6,
                "name": "USD Coin",
                "symbol": "USDC"
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "address": {
                      "description": "EVM contract/token address (0x...)",
                      "type": "string"
                    },
                    "chain": {
                      "description": "Chain (default base)",
                      "enum": [
                        "base",
                        "ethereum"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "address"
                  ]
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "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"
        }
      },
      "catalogue": {
        "discovery": "https://eltociear-contract-guard.hf.space/.well-known/x402",
        "note": "Same x402 rail (USDC on Base), same payTo wallet, no account or API key. GET the discovery URL for the full route list and prices.",
        "related": [
          {
            "covers": "on-chain and DeFi data, markets, FX, wallet and chain intel",
            "discovery": "https://eltociear-tokenguard.hf.space/.well-known/x402",
            "service": "tokenguard"
          },
          {
            "covers": "web data (read/crawl/search), MCP and agent-skill security scanning, developer supply chain",
            "discovery": "https://eltociear-skill-audit.hf.space/.well-known/x402",
            "service": "skill-audit"
          }
        ],
        "resources": "https://eltociear-contract-guard.hf.space/x402-resources"
      }
    },
    "lastUpdated": "2026-10-24T09:44:45.507Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-24T09:44:45.377Z"
    },
    "resource": "https://eltociear-contract-guard.hf.space/check",
    "serviceName": "contract-guard",
    "tags": [
      "crypto",
      "on-chain",
      "verification",
      "security",
      "ai-agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Risk check for an EVM contract/token address"
}

What the leaf hashes

{"body":"bd5945d52a83fde1f30538eef3ec588c2c279785ef759ebfa4836f7b03aabb16","id":74430,"kind":"listing","method":"baseline/1","observed_us":1793025489090316,"prev":null,"subject":"x402_bazaar:https://eltociear-contract-guard.hf.space/check","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x0cca6376554a2e0258cc29e98e2da3400a382b1634563e59ef33b6cdb68fabe5
2. 0x72b2338007a044988308265ab05d9d56d3ba1bd665501a424e0446168ae4eec0
3. 0x297ed438af4696d17628ae7f9c15a213cebeb04ffe5de6f0a23240d216a275cc
4. 0x51660a6c24964272ddf8b6fea49b6ba835d476e2b706180b7427547d80786991
5. 0xca3d56bf65220c197adcf6faf698ca6293272fd98083c98042b5668749e6ad99
6. 0xbc34d4a6a2e360f98a777f549136046ba3fd5fc3de4d4e978fbebc39d04d6060
7. 0xe3688ec8e24fc13f44d9d5d99931c2138085d6ca3208e2b09b884ebd5c45f955
8. 0x504918247bd7cc00ab3cdedd9a641795d5f503e4f66ac0af9221ae73a9bfc271
9. 0x8ba247835f2c463d7507d11c81a89b08ba87c3b564ae729b0685bea797c1bec1
10. 0x3c4894f4b32e18391502aac10c1c4092f71b1b7995859ea31b24350027233ca9
11. 0x1dd760089997f06dc5264f791d622a6e7eaf78f6daa715333a752d033cdb2e03
12. 0x362683225b724b8d2d652a95968c57a6f4199ed4f2ad60900fc3603492f17520
13. 0x5aefcf9e3d86e125861c0d490079969110eea8fc901ec61531bba10bb58258a1
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae