Evidence row 262341

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agents.crowdspark.me/v1/chain/gas"
    ]
  ],
  "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": "Gas estimate and fee quote for Base, Ethereum, Optimism, Arbitrum and Polygon: eth_estimateGas for your transaction (to, from, value, data) or a plain transfer if no 'to', current base fee, slow/standard/fast priority tips from recent blocks, max fee suggestions, L1 data fee on OP-stack chains and total cost in native coin and USD (Chainlink price). Reports reverts instead of failing. Use before signing or to budget agent transactions.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "chain": "base",
              "data": "0x70a082310000000000000000000000000dea0030a17bf886543a757c55924710258c2eec",
              "from": "0x0dEA0030A17BF886543a757c55924710258c2eec",
              "to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "base_fee_gwei": "0.005",
              "block": 53115830,
              "chain": "base",
              "chain_id": 8453,
              "fees": [
                {
                  "est_cost_native": "0.000000232928187839",
                  "est_cost_usd": 0.000541,
                  "max_fee_per_gas_gwei": "0.01011",
                  "max_priority_fee_gwei": "0.00011",
                  "tier": "slow"
                },
                {
                  "est_cost_usd": 0.00065,
                  "tier": "standard"
                },
                {
                  "est_cost_usd": 0.00211,
                  "tier": "fast"
                }
              ],
              "gas_units": "45415",
              "l1_data_fee_native": "0.000000000857537839",
              "method": "eth_estimateGas",
              "native": "ETH",
              "native_usd": 2320.97,
              "reverted": false
            },
            "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": "Chain, default base",
                      "enum": [
                        "base",
                        "ethereum",
                        "optimism",
                        "arbitrum",
                        "polygon"
                      ],
                      "type": "string"
                    },
                    "data": {
                      "description": "Optional. 0x calldata",
                      "type": "string"
                    },
                    "from": {
                      "description": "Optional. Sender address",
                      "type": "string"
                    },
                    "to": {
                      "description": "Optional. Target address; omit for a plain native transfer quote",
                      "type": "string"
                    },
                    "value": {
                      "description": "Optional. Value in wei",
                      "type": "string"
                    }
                  },
                  "required": [],
                  "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": "2026-10-26T15:42:24.993Z",
    "quality": {
      "lastCalledAt": "2026-10-26T13:30:03.341Z"
    },
    "resource": "https://agents.crowdspark.me/v1/chain/gas",
    "serviceName": "Agent Tools",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Gas estimate and fee quote for Base, Ethereum, Optimism, Arbitrum and Polygon: eth_estimateGas for your transaction (to, from, value, data) or a plain transfer if no 'to', current base fee, slow/standard/fast priority tips from recent blocks, max fee suggestions, L1 data fee on OP-stack chains and total cost in native coin and USD (Chainlink price). Reports reverts instead of failing. Use before signing or to budget agent transactions."
}

What the leaf hashes

{"body":"1383585191b34897664431733a00dc2d4fe918d416018999bb4e12d40c4cbe0d","id":262341,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793032608117760,"prev":257748,"subject":"x402_bazaar:https://agents.crowdspark.me/v1/chain/gas","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xc89d988881e7a18bf983cb3688f9655bcc2e6dbe22c6a79e07ffd1660d3b5449
2. 0x541d7a4c88c1bda807fb513a7ea4c6966e3339027dceba1124e85a39b680e700
3. 0x23038703e036e1a8b460dc9bdb620cd2590483b31acbfca86ea93ef0f631bc90
4. 0x98103eb47a8837e2e6e75cec28ddb2ae07621c882ce033a8df345346d2e9f935
5. 0x66d4a5d5dc9fc8d3aabab73a59467af47fdfbd1ee172c72d11ff01b6843dde28
6. 0x6d795c7b92d09f257f82f0a75d6a5b60705197160c387a8d335396d8605d5cdf
7. 0x3c9f3a5f40fe27c79c6bb1b3b9bca5fced77e183ac06c294736aa1874f39b826
8. 0x9d9cd9e199825012823bedfb9bc437245cf019115cc8cb1a8ee15a8d4b3bbc42
9. 0x1148a3536fbc4c6e4bca38b54eb0f7b8853df52207579c13e0b6efa25a2fe4cf
10. 0x99b83a0d8096cc6e79ca10fec0381f61738bb5a26cb8d4668d93598ea82a302a
11. 0xde080106ffe5b9071b2505ae31b17f7da4d3a9c7f4f4d9819f700d720702beeb
12. 0xde09984239f27618a13932caf48f5d39831fc5021500b0581dce0dabd570bd6e
13. 0x72e35aac89ebca631656c2b1aecbdc094807d9807f12c22a6ddf35cc1f5e21d6
14. 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae