Evidence row 425262

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agents.crowdspark.me/v1/chain/token"
    ]
  ],
  "name": "Agent Tools",
  "owner_address": "0x0dea0030a17bf886543a757c55924710258c2eec",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x0dEA0030A17BF886543a757c55924710258c2eec",
        "scheme": "exact"
      }
    ],
    "description": "Token contract inspector for Base, Ethereum, Optimism, Arbitrum and Polygon: is it a contract, ERC20/ERC721/ERC1155 detection, name, symbol, decimals, total supply (raw and formatted), owner, and upgradeable-proxy check (EIP-1967, beacon, EIP-1167 clone, legacy zeppelinos) with implementation and admin addresses. Read live from public RPC. Use before quoting, swapping, listing or paying with a token.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "chain": "base"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "chain": "base",
              "chain_id": 8453,
              "decimals": 6,
              "is_contract": true,
              "name": "USD Coin",
              "owner": "0x3ABd6f64A422225E61E435baE41db12096106df7",
              "proxy": {
                "admin": "0x4fc7850364958d97B4d3f5A08f79db2493f8cA44",
                "implementation": "0x2Ce6311ddAE708829bc0784C967b7d77D19FD779",
                "is_proxy": true,
                "type": "zeppelinos (legacy unstructured storage)"
              },
              "standard": "ERC20",
              "symbol": "USDC",
              "total_supply": "4299464528.64453"
            },
            "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": "Token contract address (0x...)",
                      "type": "string"
                    },
                    "chain": {
                      "description": "Chain, default base",
                      "enum": [
                        "base",
                        "ethereum",
                        "optimism",
                        "arbitrum",
                        "polygon"
                      ],
                      "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"
        }
      }
    },
    "lastUpdated": "2026-10-27T04:43:28.788Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-27T04:43:28.629Z"
    },
    "resource": "https://agents.crowdspark.me/v1/chain/token",
    "serviceName": "Agent Tools",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Token contract inspector for Base, Ethereum, Optimism, Arbitrum and Polygon: is it a contract, ERC20/ERC721/ERC1155 detection, name, symbol, decimals, total supply (raw and formatted), owner, and upgradeable-proxy check (EIP-1967, beacon, EIP-1167 clone, legacy zeppelinos) with implementation and admin addresses. Read live from public RPC. Use before quoting, swapping, listing or paying with a token."
}

What the leaf hashes

{"body":"c2c7127717cfd92971d04000cd2dc17deb342058253217b4b3c89a8f8278fd4b","id":425262,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793086108720530,"prev":408512,"subject":"x402_bazaar:https://agents.crowdspark.me/v1/chain/token","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. 0x4ab4fbfc606edec684a96d39bdd5be9b63ff6e39d01b04cdaa98fca6437a3176
2. 0x4ecf82e0e3f4c3104c5c10627cf82fd6fbcdf41a35844aa1b32329a74105e02f
3. 0x24c1f6adfd21e92e49764412ee64ce8913a6ce1c84d9e56843b6c3e2acaf3801
4. 0x4fc20beb710b3d2440b814727bd77ba82c5fd472978d779a323a344a6e837053
5. 0xa2ec0e5cb1b2caf2078fe2398b14184939595ad030851c6f69b61b54d0d29403
6. 0x771f6696cdd3071db8934217126daa91c318784a084bc0bafe36531159e8afcb
7. 0x6c1900b5f2eb81be371a7311ae3cd042e6c951ba239c74c93211652a518d9548
8. 0x0371bf1bc77c63d75a1f70f874ef09fa7bdaf4d874e9dfa4b41fdf6c67f32198
9. 0x6e77da0ecfbb2043e8d909298a6b462ac76ffaf51329ea358a065e17d676e884
10. 0xb7a7c7e81e3f6b0f36dcf2b91655a275899b5a62dbe6b89f95d3f0dbf1b2f864
11. 0xeb9196880bdc986689de0e7f67bcf58d7bfc97d97c9dfab3391e3b96629bdac4
12. 0xa6ea35fd4950cdcd8e7e5b8dcbb37883deca6fa621672fcdbde7ee38017f71bb
13. 0x150dc531eedad3837a4be47dd0bf1a84bf98feb63216c125982425fda525a3fd
14. 0x80ede9e5d428e39db26928b1d08254ff1241f1d7e091fd2e57130fbb4423162b
15. 0x2c117b27721eea45f6590fbccb471d21a7b0b079a53f089ecb300c63bdb3aebf
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4