Evidence row 526902

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://kair-os.trade/base-quotes/quote"
    ]
  ],
  "name": "kair-os.trade/base-quotes/quote",
  "owner_address": "0x2a40c1e882e511e363fb5eda842ac4cb50cdca2f",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2A40C1E882e511e363Fb5EdA842Ac4Cb50cDcA2F",
        "scheme": "exact"
      }
    ],
    "description": "Compare four Uniswap V3 single-pool exact-input swap quotes on Base at one block (latest by default, finalized optional). Returns raw token amounts and QuoterV2 gas estimates. Gross output comparison; execution costs and net ranking remain unknown. Does not execute swaps.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "amountIn": "1000000",
              "blockTag": "latest",
              "tokenIn": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
              "tokenOut": "0x4200000000000000000000000000000000000006"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "amountIn": "1000000",
              "bestGross": {
                "amountOut": "400000000000000",
                "fee": 100
              },
              "block": {
                "hash": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
                "number": "0x1",
                "tag": "latest"
              },
              "chain": "base",
              "netComparison": {
                "status": "unknown"
              },
              "protocol": "uniswap_v3",
              "quotes": [
                {
                  "amountOut": "400000000000000",
                  "fee": 100,
                  "gasEstimate": "90000",
                  "status": "ok"
                }
              ],
              "status": "ok",
              "tokenIn": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
              "tokenOut": "0x4200000000000000000000000000000000000006"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "amountIn": {
                      "description": "Raw input-token units as a positive decimal string, at most 340282366920938463463374607431768211455. Decimals are never inferred.",
                      "pattern": "^[1-9][0-9]{0,38}$",
                      "type": "string"
                    },
                    "blockTag": {
                      "default": "latest",
                      "description": "Block state to quote. Latest favors freshness; finalized favors finality.",
                      "enum": [
                        "latest",
                        "finalized"
                      ],
                      "type": "string"
                    },
                    "tokenIn": {
                      "description": "Nonzero Base token contract address; must differ from tokenOut.",
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    },
                    "tokenOut": {
                      "description": "Nonzero Base token contract address; must differ from tokenIn.",
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "tokenIn",
                    "tokenOut",
                    "amountIn"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T10:09:15.897Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-27T10:09:15.491Z"
    },
    "resource": "https://kair-os.trade/base-quotes/quote",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Compare four Uniswap V3 single-pool exact-input swap quotes on Base at one block (latest by default, finalized optional). Returns raw token amounts and QuoterV2 gas estimates. Gross output comparison; execution costs and net ranking remain unknown. Does not execute swaps."
}

What the leaf hashes

{"body":"633cdb6fe06e2fbd19230e10d299c459c97ee238bcacded814cba492367248ac","id":526902,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124792365554,"prev":452883,"subject":"x402_bazaar:https://kair-os.trade/base-quotes/quote","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. 0xfd3bc6aa5caabfde1e6850175cbd16db20914f846d2efd3eaf7bfad681d7c150
2. 0x1d329e00ef0c16647960faa06a6e93ac89504d01759762bd63d9789af2c94e66
3. 0x1d3fa09d148c00b694d08e5d6e8f00edbf80951e425fece04c970ab86db94a07
4. 0xc23243f856c89acc7753fad9e94d14db9e7f07004ee2fc47c02ba4083b8b74e3
5. 0x97d6df34ee109ed5534abae6d7fc9963e7bd4da3b2d2db7ff8a2e473211b7b0e
6. 0x19f4773fa38e189ec91a4d7c0f9f033bbcf578995faca6ecd36e35bfd76c8a70
7. 0x88a3a12d139702626799d0b21de06d0a90c7495fb72ec4f991f0698fcc2624f8
8. 0xbe49e1462c4d76ac112424b23bf82790867e9ff48e36e0f67fcd86d0a80e99a7
9. 0xca748108eecb8a33ab944f40592513a6d6916a52d1ad10042eea0b4c99718d38
10. 0x5943b7c2a87ba36d413415050817f9a38998089d1ceec112a43fc5f1f8e900f1
11. 0x913c1ab81bd3a3abbf855573e8ced45a41df599bd9b6062b6a769ca205198aa7
12. 0x405c03a710a7150f5182f236dbd76258bf856f8cdf3ac954821ac082524f65da
13. 0x56e872147e60f01cdcee33340b018a7ad7be91ec5b5daef0d2c629c3ca13cbd8
14. 0xb5b652bba4a5afca56c21031d89b1c06361563aaf54ccc8541c296ceeb2b66fa

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4