Evidence row 3764883

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.novarithm.com/agents/v1/payments/usdc-balance"
    ]
  ],
  "name": "USDC Balance on Base",
  "owner_address": "0xe414ad5c7542ce63d890526f0e2133ff8da6f22d",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xe414aD5c7542CE63D890526f0e2133ff8da6F22D",
        "scheme": "exact"
      }
    ],
    "description": "Current USDC balance of an address on Base or Base Sepolia (balanceOf on the official Circle contract).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "address": "0xe414aD5c7542CE63D890526f0e2133ff8da6F22D"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "address": "0xe414ad5c7542ce63d890526f0e2133ff8da6f22d",
                "balance_raw": "0",
                "billing_unit": "address",
                "block_number": 52980236,
                "chain": "base",
                "chain_id": 8453,
                "generated_at": "2026-10-23T10:03:40Z",
                "price_usd": 0.001,
                "response_time_ms": 227,
                "source": "eth_call balanceOf on the official USDC contract",
                "sources": [
                  {}
                ],
                "usdc_balance": 0,
                "usdc_contract": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913"
              },
              "service": "usdc_balance"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "address": {
                      "description": "Address (0x...)",
                      "type": "string"
                    },
                    "chain": {
                      "default": "base",
                      "description": "base (default) or base-sepolia",
                      "enum": [
                        "base",
                        "base-sepolia"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "address"
                  ],
                  "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"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793688678/bazaar-icons/d9c569891dbe991d.png",
    "lastUpdated": "2026-11-04T18:59:02.939Z",
    "quality": {
      "l30DaysTotalCalls": 7,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-11-04T18:59:02.309Z"
    },
    "resource": "https://api.novarithm.com/agents/v1/payments/usdc-balance",
    "serviceName": "USDC Balance on Base",
    "tags": [
      "usdc",
      "balance",
      "base",
      "wallet",
      "agent-payments"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Current USDC balance of an address on Base or Base Sepolia (balanceOf on the official Circle contract)."
}

What the leaf hashes

{"body":"3ab54e8e6e71227dc279377736e166db26c1c9d2d616197e73b536f9b3c5f589","id":3764883,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793996591622046,"prev":3064551,"subject":"x402_bazaar:https://api.novarithm.com/agents/v1/payments/usdc-balance","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-06 (303443 rows).

1. 0x28e30d25afcebe5df11baf2cae2ed999099d74a0a303dbb186c3af8cd64becbc
2. 0xe2cb5f3f10708747fed1fe23134b0f02ed60bfc60e67d5a0e7bc47aaa2a405d0
3. 0xe28b79bccaf65f2b9b60e52bdbe8781e60292afb48a9f345d53951008f4f5a1d
4. 0xb1d768b2f4604b46194a093003303329d6225114662177260f71fe82d3805285
5. 0xa7aceb1ad0fc0171e7bd374990dfb6c0c0fa0bae19ed62f79c769eabc891706d
6. 0x92cb0b733b34144c4ba6be90985b17dbdcd375ca1da4884c77b12e5fdfff6bf0
7. 0x767be2d789605dfd91ae356eb96d9316d70c9ff3cfe786fa3a6c8d15a8b0005d
8. 0x7c0967be4748cf88def3ac636399d39d5fdd9eeaa39160e8a02e8e0a8f6e37ee
9. 0x778352f43959be2fb6e6e39e7341e7d2f18ab9b24b5f786d9ee1f9536b2ea63a
10. 0xf7907e3484eb270bcd63a5145d240576dc90956a3f89fd0a45ee341c23b3de05
11. 0x564269601286915a7eeab58542a146b3250a98ddc29bf8f09787708849f63fa4
12. 0x8b495404ee83fe0e8c476460e29ce8f78863a7c3ae44856d62787155e142e35c
13. 0xd8ee58217b244053068bf4c0fa7688d6f4a662b265ba0e50db6095fda93b4483
14. 0xdd6caff8b0876542f26987c9cae49eee11e135210e6f435b006118b6d3e534e5
15. 0xb490b9bc961e5cbbfaf890e393a2eb3d2518e080e0a107acd232486f34cf7408
16. 0x0aaf291a2ffa2205e7df7531bf36800e377dfbd67208da05b97625f1cc49ce02
17. 0xa448dc698494f795f2240c0e7070e8a93eb263baee21ca4185a7d03432a614d8
18. 0x119743aadcddb571b28b442b62196d4a0afc4e1c9979c2d477d34fcc9413deaf
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1