Evidence row 1508011

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-agent-hub.x402-agent-hub.workers.dev/v1/chain/token-info"
    ]
  ],
  "name": "x402 Agent Hub",
  "owner_address": "0x1721e9841257a34dbdba407d4dba3a727a02d072",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1721E9841257A34DbDBA407D4DBA3a727a02d072",
        "scheme": "exact"
      }
    ],
    "description": "ERC-20 token metadata on 7 EVM chains: name, symbol, decimals and formatted total supply in one call. You only pay for successful reads: invalid input, not-found and upstream errors cancel settlement.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "chain": "base",
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "chain": "base",
              "chainId": 8453,
              "decimals": 6,
              "name": "USD Coin",
              "symbol": "USDC",
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "totalSupply": {
                "decimals": 6,
                "formatted": "4170000000",
                "raw": "4170000000000000",
                "symbol": "USDC"
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "chain": {
                      "description": "base (default), ethereum, arbitrum, optimism, polygon, bsc or avalanche. Chain IDs also accepted.",
                      "type": "string"
                    },
                    "token": {
                      "description": "0x-prefixed ERC-20 token contract address.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "token"
                  ],
                  "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": "2026-10-31T09:05:49.997Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-31T09:05:49.876Z"
    },
    "resource": "https://x402-agent-hub.x402-agent-hub.workers.dev/v1/chain/token-info",
    "serviceName": "x402 Agent Hub",
    "tags": [
      "onchain",
      "erc20",
      "token",
      "metadata",
      "evm"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "ERC-20 token metadata on 7 EVM chains: name, symbol, decimals and formatted total supply in one call. You only pay for successful reads: invalid input, not-found and upstream errors cancel settlement."
}

What the leaf hashes

{"body":"2effabbea39ed6acfc7be0f8e05cc5a9ad3f26939fa3cf342507950536e5c1ff","id":1508011,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793472706510579,"prev":null,"subject":"x402_bazaar:https://x402-agent-hub.x402-agent-hub.workers.dev/v1/chain/token-info","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x1f81b9400f2351a96419e50dc6abafed75bc7cb7417ac83518ed4bd459da00fd
2. 0x3770e00d8c9d636161e00a346c1c2bd94518e92d8625f1320f309b95a89b8cc6
3. 0x47e7d12c05007d2a65e785bd26dafd330388e7a3ebf7d28f2c359d58bfabab20
4. 0x09b178f6b7465f1c97549e2c6d632d2bfdd2be34ea4fa2497d8134fe461d57cc
5. 0xc59b02aecdcd7933f960f52e2269cc7c8589e22a91f53f6e685a3aaf4bbbe1e4
6. 0xf865a5c0e125f162164308718eb160030a71a5ff64ce4b4fc60f5f6fd4591d41
7. 0xca3a18c442e83e104550f722578495fdadae5ee54406531dbcad2d43bef0415b
8. 0xcfa72df727c897dec18d69063582d5f7ad917a6f1212477238c1dcfb1898a91d
9. 0x5d1f9324f49748ca6939ecc2c60e5d9278bb5a5d71998e82b9f2da486de2ec40
10. 0xbb1007de5ee558241f54393eab9ef5208c101cbf78c9a01c07303e753f662d1a
11. 0x515a29a83c89ac87aea9dba972dd27787a73effa05a7caab4b40a8850cc93816
12. 0x1808c3f15d1bc4b9e01c3c5d66f6768cabbff1fc627f8511be48dd8e42d0d614
13. 0x8803bf75cab982672041776266568d6de6eae1009b05bc3ae84ccb6104d5f5f4
14. 0x9ceb0cca7e6a4252fd4bc9968554fbb343590c4ea20f4c2a07778fe411162b49
15. 0x95ec49fc7f2c7be30422eaa1d0d6036836dd63ff46a8ed4027258fcf3eb8cf24
16. 0x2bca4aa3c59fe9209016c64bd8b706423477e3407201a00165afde9abf6fee2b
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0