Evidence row 1262203

Observed 30 Oct 2026, 18:38 UTC, by sync.x402_bazaar/1.

Kind: listing
About: source_record x402_bazaar:https://kr-x402-mvp.kgy5612.workers.dev/crypto/erc20-balance
Recorded: 30 Oct 2026, 18:38 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 1e904624428db861eedbdabbb7d3a4006422de0555b8b79ae8824aba5acc5315
Leaf: 0x4b3c0446ea272150fa0baa40ef3017dd3dc63c1c20dcff771ef4899d07f20336

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://kr-x402-mvp.kgy5612.workers.dev/crypto/erc20-balance"
    ]
  ],
  "name": "Crypto Microdata for Agents",
  "owner_address": "0xe4be4d0bd82d8e68203deff81f79ede0529f2617",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xe4be4d0bd82d8e68203deff81f79ede0529f2617",
        "scheme": "exact"
      }
    ],
    "description": "Live ERC-20 balance on Base: token=0x..&wallet=0x.. -> balance (decimals applied), raw, symbol, block.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "wallet": "0xe4be4d0bd82d8e68203deff81f79ede0529f2617"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "balance": 0.061,
              "balance_raw": "61000",
              "block": 53204016,
              "chain": "base",
              "decimals": 6,
              "symbol": "USDC",
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "wallet": "0xe4be4d0bd82d8e68203deff81f79ede0529f2617"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "token": {
                      "description": "Base ERC-20 contract",
                      "examples": [
                        "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                      ],
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    },
                    "wallet": {
                      "description": "Wallet",
                      "examples": [
                        "0xe4be4d0bd82d8e68203deff81f79ede0529f2617"
                      ],
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "token",
                    "wallet"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-30T01:32:19.96Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-30T01:32:19.788Z"
    },
    "resource": "https://kr-x402-mvp.kgy5612.workers.dev/crypto/erc20-balance",
    "serviceName": "Crypto Microdata for Agents",
    "tags": [
      "crypto",
      "base",
      "erc20",
      "balance",
      "onchain"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Live ERC-20 balance on Base: token=0x..&wallet=0x.. -> balance (decimals applied), raw, symbol, block."
}

What the leaf hashes

{"body":"1e904624428db861eedbdabbb7d3a4006422de0555b8b79ae8824aba5acc5315","id":1262203,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385520587020,"prev":null,"subject":"x402_bazaar:https://kr-x402-mvp.kgy5612.workers.dev/crypto/erc20-balance","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

0x4b3be59f9a10821d44c47406028328946dc52c504d2652eed0cf8c1690d37ef1
0x376b5e4bec1535bbc10dcc711bbb7a8bbd4dff0b46d2f13807b44cf9c07d438c
0xb5b73edded06b321defdb8b48aa7d4da3d4da3061d2288d6f9c44b2d82eff472
0xed408956feb88d57976759bac781f692ec5e5b352ccc39d8c737ec16d55154fc
0x6ed1a6fb96560762cd1b48909ac05f075f592f4331f5671b819887c473ee6511
0x5af30eebc507e112cca3c74594d35368fd6f90561cd4831f03d4e9a1e5bc6937
0x097a16fbfd8ff50fcea6ded1beec25199652dfc2b13a8b0a03a77ac84d5e9a3e
0x26f4ed1d90c0104b8ef8977244bb8eba004391ae3047a912ec23e03bd8cee646
0x46ecf8bb891379ec3145da1513383fb4613a99584e6d803aadb2be1082ce9838
0x109ddddb3f35fa4a94a82f4679c9fa199d0d1eb2dee4228258cf70d5cad22596
0x99cf0b55bca8542c3060ca56124d801b84470c2db8b48ec80c5c216f2e8a50f7
0xd0fc592ff5d40c180090bf8aae21494163df4e3c68b54dc24040221631fa1925
0xec056ea330536f437d7c8a8262b1a5055dd234070d691d0d303dd85828fa5a4e
0x9ace81ddbf101c81e3033efcaf62a4f4ad2b7dc0b97b61a7adf81117108ff2f7
0xa937fac4496d1d79e24c5f12abd33388ef710185b9d82165d4b39af6bd434545
0x910a91495535ac1a9e959d27d607e185616d2d41b45bc7071c6357f426f372d8
0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root: 0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875
Chained: 0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822
Published: On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861

How to check it · This row as JSON