Evidence row 121002

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://scraplingdata.xyz/v1/datasets/volume-leaders"
    ]
  ],
  "name": "Scrapling x402 Data Store",
  "owner_address": "0x72c80c01fd89bac74f47cf604b61acd119c9bcdb",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x72C80C01fD89Bac74f47cf604b61ACd119c9BCdb",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x72C80C01fD89Bac74f47cf604b61ACd119c9BCdb",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0x72C80C01fD89Bac74f47cf604b61ACd119c9BCdb",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "4ZUtqtQSrL522bcXTag1eR59cwfQhQGW16nYuzyYgRWX",
        "scheme": "exact"
      }
    ],
    "description": "Live ranking of DEX liquidity pools by estimated 24h USD trading volume, computed from on-chain pool fee accumulators across Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain and Avalanche: pair, base and quote asset, DEX, chain, 24h volume, 24h fees and TVL. Price, open/high/low and 30d volume are null (replaced the Coinbase Exchange feed). Filter with q=WETH or q=base Formats: format=json (default) or format=csv (text/csv); optional q, limit, offset.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": 50
            },
            "type": "http"
          },
          "output": {
            "example": {
              "dataset": "volume-leaders",
              "records": [
                {
                  "base": "WETH",
                  "chain": "Base",
                  "change_24h_pct": null,
                  "dex": "uniswap-v3",
                  "fees_24h_usd": 45617,
                  "high_24h": null,
                  "last": null,
                  "low_24h": null,
                  "open_24h": null,
                  "pair": "WETH-USDC",
                  "quote": "USDC",
                  "rank": 1,
                  "source": "onchain",
                  "tvl_usd": 40100000,
                  "volume_24h_usd": 91234567,
                  "volume_30d_usd": null
                }
              ],
              "returned_rows": 1,
              "title": "Live DEX pool volume leaders (24h, on-chain)",
              "total_rows": 1,
              "updated_at": "2026-10-20T19:20:18Z"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "headers": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "format": {
                      "enum": [
                        "json",
                        "csv"
                      ],
                      "type": "string"
                    },
                    "limit": {
                      "description": "Rows to return, default 200",
                      "maximum": 1000,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "offset": {
                      "description": "Rows to skip, for paging",
                      "minimum": 0,
                      "type": "integer"
                    },
                    "q": {
                      "description": "Optional keyword; keeps rows where any field contains it",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "example": {
                    "dataset": "volume-leaders",
                    "records": [
                      {
                        "base": "WETH",
                        "chain": "Base",
                        "change_24h_pct": null,
                        "dex": "uniswap-v3",
                        "fees_24h_usd": 45617,
                        "high_24h": null,
                        "last": null,
                        "low_24h": null,
                        "open_24h": null,
                        "pair": "WETH-USDC",
                        "quote": "USDC",
                        "rank": 1,
                        "source": "onchain",
                        "tvl_usd": 40100000,
                        "volume_24h_usd": 91234567,
                        "volume_30d_usd": null
                      }
                    ],
                    "returned_rows": 1,
                    "title": "Live DEX pool volume leaders (24h, on-chain)",
                    "total_rows": 1,
                    "updated_at": "2026-10-20T19:20:18Z"
                  },
                  "properties": {
                    "dataset": {
                      "type": "string"
                    },
                    "matched_rows": {
                      "type": "integer"
                    },
                    "next_offset": {
                      "type": [
                        "integer",
                        "null"
                      ]
                    },
                    "offset": {
                      "type": "integer"
                    },
                    "records": {
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "returned_rows": {
                      "type": "integer"
                    },
                    "title": {
                      "type": "string"
                    },
                    "total_rows": {
                      "type": "integer"
                    },
                    "updated_at": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "dataset",
                    "records"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-25T20:05:16.806Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-25T20:05:16.459Z"
    },
    "resource": "https://scraplingdata.xyz/v1/datasets/volume-leaders",
    "serviceName": "Scrapling x402 Data Store",
    "tags": [
      "web-scraping",
      "crypto",
      "defi",
      "ecommerce",
      "datasets"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Live ranking of DEX liquidity pools by estimated 24h USD trading volume, computed from on-chain pool fee accumulators across Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain and Avalanche: pair, base and quote asset, DEX, chain, 24h volume, 24h fees and TVL. Price, open/high/low and 30d volume are null (replaced the Coinbase Exchange feed). Filter with q=WETH or q=base Formats: format=json (default) or format=csv (text/csv); optional q, limit, offset."
}

What the leaf hashes

{"body":"0779c1fb00dba302f76162ad307a09dc185cd269c3e2104996313a97160f7e0a","id":121002,"kind":"listing","method":"baseline/1","observed_us":1793025619104419,"prev":null,"subject":"x402_bazaar:https://scraplingdata.xyz/v1/datasets/volume-leaders","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. 0x57fa680887851c087db562dbf6e98e716a6cfba5c8005e59e67281acd359d207
2. 0xfbb18c4573384970fe2bd702112cebcb6e33bdd12f060c9c5f014a5926fd2ce3
3. 0x9dcb681ae66d229ee8c888d1898e31820a2d1c2b57ff1c7a0e034a1b2d8409af
4. 0xfb92ad45ea4a24bfd25a3ac0e05f5ae48782e4b582472706276626a584c6cc63
5. 0x82736122d272f9190511933702ab39d6067c2cac9cd2693f229825d2972c4b24
6. 0x486042ceea2f054bbf4b0e8eec91c33fc305fec64be2933c71af2dd1c1b105f8
7. 0x1fe288c841d6cc33f5a293445361e8f070640a54480ebb25705176e6a1d8232c
8. 0x2d7cb098e202dff99deee9744be3f1086d65b65c542d3183838b8f15795a97d9
9. 0xe53542ed751813d1a6d523062a23ac38392574080ade6d92b1ed3090a474dc4a
10. 0xda3bffd0a7c24c98da7dc5357e8d748010f4817bac4b377a94cd382883fc809a
11. 0x86f49d35fee840c62060e3a6cbc75237dbfdc70dd7439506d3f085c9cca8e4f2
12. 0x01ecb94c2efbfb8e9050ebbd813fbba80bbcbc345f98de707345bc4bc88c94e8
13. 0x8ba3430866b4c11cea7eba9923ee4fa8a5074849df417006e4441426c1f13056
14. 0x5cdeb4648502e0633d01cc4f3379d48cccb9d4f528565b2868eb93db0df9e829
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae