Evidence row 548934

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402op-edge-39830b.fly.dev/p/base-token-check"
    ]
  ],
  "name": "Base Token Risk Check",
  "owner_address": "0x2d2f9e6c8d5771d48fed9e590e4445bfdb708302",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2D2F9e6C8d5771D48fEd9E590e4445BFDb708302",
        "scheme": "exact"
      },
      {
        "amount": "5000",
        "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:84532",
        "payTo": "0x2D2F9e6C8d5771D48fEd9E590e4445BFDb708302",
        "scheme": "exact"
      }
    ],
    "description": "Use before buying or approving an unknown ERC-20 token on Base. Rule-based check straight from the chain, without AI - contract and proxy (upgradeable?), owner and whether it was renounced, risky owner functions in the bytecode (mint, pause, blacklist, fees, trading switches), owner share of supply and DEX liquidity on Uniswap V2/V3 and Aerodrome in USD. Returns ok, caution or avoid with reasons in under two seconds. Technical check, not investment advice.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "network": "base",
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "network": {
                      "default": "base",
                      "enum": [
                        "base",
                        "base-sepolia"
                      ],
                      "type": "string"
                    },
                    "token": {
                      "description": "ERC-20 token contract address",
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "token"
                  ],
                  "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"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T10:17:42.826Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-27T10:17:42.612Z"
    },
    "resource": "https://x402op-edge-39830b.fly.dev/p/base-token-check",
    "serviceName": "Base Token Risk Check",
    "tags": [
      "base",
      "token",
      "risk",
      "security",
      "erc20"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Use before buying or approving an unknown ERC-20 token on Base. Rule-based check straight from the chain, without AI - contract and proxy (upgradeable?), owner and whether it was renounced, risky owner functions in the bytecode (mint, pause, blacklist, fees, trading switches), owner share of supply and DEX liquidity on Uniswap V2/V3 and Aerodrome in USD. Returns ok, caution or avoid with reasons in under two seconds. Technical check, not investment advice."
}

What the leaf hashes

{"body":"f185b8d7c51c365c16143097a37287a6c5e359a0314c8383fff3d593e4b3cb7c","id":548934,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133333762957,"prev":453769,"subject":"x402_bazaar:https://x402op-edge-39830b.fly.dev/p/base-token-check","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xab94f1e3f9af7261268f2ed4cfb001677b57289d34a452d23b1f36c314388b34
2. 0xc99cb43c66c4b1c12a34031112d5520a7316ca29be23fdfa06d62567425d2543
3. 0x8219bceb6a4119127eaedf06f51bac71008609835069dbef09c40edcc3b1325f
4. 0x2cca70192cace77f3c01cc2b5e824bee78d755eed609f51e20f720b60894c81b
5. 0xa3161e08efb210239f4718648b002d5be90cc54ccd0f156634df6d6338441472
6. 0x51e53eeaeebdb8027b9c8ae03dbbc81c0860805c782de338adc8e65347a1a478
7. 0xae58dc7e8111ed83189e9c3c6b70e6ea11414ccbe4c38a928fc127fce86a1433
8. 0x60ab8d376364ffc9c90d009b5c57f7204312af860afc1f5c2c99c9f50dff04db
9. 0xccf9c84382696dcdf1a4e2357a6608ab3e4d98791ef4b47b6d5309e03136c574
10. 0x4cbda852ccf1b96ff7c1de04eb698405e76be19d87a3deb7262011796e29b6d7
11. 0x59cb41ec7d9ac9c74e0f576f6d9ea1041f1f440ad9c2ec9f6107b51d598a3ef5
12. 0xe58ece954b3b0e80c16db5967815baeb4102983fd3dbc48dbb6146da839f558b
13. 0x5e700087f2a5e8fb7372f2c2db037d66942006d666bb45dd92f745011295fa7b
14. 0x98c6ed3e7b5bb7f1757a8660af410226a11dd563bf83010040c2ce059ab45e54
15. 0xec7bb68216a4deb1960acfbbd75da88f7e468b58adb9cf3ec62f2790e46508b3
16. 0x64c405a28e8819716221eb2529fe4ce277ab08025e17e685cbd5ece75ceb75c7
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4