Evidence row 71822

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://bot-bazaar.fly.dev/v1/x402/gas-fee-estimator"
    ]
  ],
  "name": "Bot Bazaar",
  "owner_address": "0x847f54ae8ddfd71ed7bc930c1f7a73576fab03a9",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x847f54ae8dDFD71ed7bC930C1f7a73576FAb03A9",
        "scheme": "exact"
      }
    ],
    "description": "Estimate Base L2 gas costs in ETH and USD for common token operations vs zero-gas facilitator-settled x402 EIP-3009 transfers.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "operation": "eip3009_facilitator"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "base_fee_gwei": "0.005",
              "gas_units": 0,
              "generated_at": 1792950000,
              "note": "With x402 EIP-3009 facilitator settlement, the facilitator pays Base L2 gas so the buyer pays 0 ETH gas.",
              "operation": "eip3009_facilitator",
              "payer_gas_eth": "0.000",
              "payer_gas_usd": "0.000000",
              "tool": "gas-fee-estimator"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "operation": {
                      "description": "Operation type (eip3009_facilitator, erc20_transfer, eip3009_direct, uniswap_swap)",
                      "type": "string"
                    }
                  },
                  "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": "2026-10-26T00:58:52.502Z",
    "quality": {
      "lastCalledAt": "2026-10-26T00:58:52.502Z"
    },
    "resource": "https://bot-bazaar.fly.dev/v1/x402/gas-fee-estimator",
    "serviceName": "Bot Bazaar",
    "tags": [
      "x402",
      "reputation",
      "sellers",
      "base",
      "usdc"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Estimate Base L2 gas costs in ETH and USD for common token operations vs zero-gas facilitator-settled x402 EIP-3009 transfers."
}

What the leaf hashes

{"body":"dbb5c8dc7f291566a460ddcd712737f9e3fc3eb4b34eddb20be9fe9b017fd7d6","id":71822,"kind":"listing","method":"baseline/1","observed_us":1793025483209470,"prev":null,"subject":"x402_bazaar:https://bot-bazaar.fly.dev/v1/x402/gas-fee-estimator","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. 0x5f421e57dae0afcdf71d13e4a8dfeaf4d06277f549930ab40bc640a7767eb356
2. 0xbdd87f4d0133e5c678ebcb683ef781088de54a7e8498499c5841213197a067a5
3. 0x403f7bb3138d2d16bdb9877bf9db438c058e8dda36eae8c296f1fd9b4ff13bb9
4. 0x3ee411f98a8fd55a6b28d0083a961d5cf1912c564d4babe5eb92fd13913b6e48
5. 0xb79d28b7a25c28bc3f3e7d0b068cd650ce096a89df6a654c38fe56fdeafc1e6c
6. 0x80d060d1462a504d0dd200e7f33cca7341a9e994681b637f36990e427a855cb6
7. 0x885f3093457e7ca3b66b81313e09d8eaafa3641897c6ca6afc2ecd85558758fb
8. 0x4fc3a82b7dc22eca935dd67f54c7c8ce62ea5e061793584e8cf837d9bd5e7ccd
9. 0x0537021a35b724245e93c8c89b7afb8ffd636f6f46420be1b20847cacdce8999
10. 0x8fd0567340f23f69262de3ad393f18f08862b59e5cd7e78982ea4d654e90d98b
11. 0x8088b42b1c11cbc36b44c4b08d0759628b035caa2738251cd28ed0e7242e65bc
12. 0x5ab25c2fdf4695beeefb0726a5fc73e189b68f8d9fb2a3f6321ff7223b166fdd
13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae