Evidence row 752000

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://wafermap.xyz/v1/gas-now"
    ]
  ],
  "name": "wafermap.xyz/v1/gas-now",
  "owner_address": "0xefa0fdf4ca8fd79227fb9a19e5cfd24a2a864b81",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xefa0FDf4Ca8FD79227fb9A19E5CFd24a2A864B81",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
        "extra": {
          "name": "Global Dollar",
          "version": "1"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:4663",
        "payTo": "0xefa0FDf4Ca8FD79227fb9A19E5CFd24a2A864B81",
        "scheme": "exact"
      }
    ],
    "description": "Gas Now — Current gas price and latest block on Robinhood Chain or Base.",
    "extensions": {
      "bazaar": {
        "category": "onchain",
        "info": {
          "input": {
            "body": {
              "network": "robinhood"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "receipt": {
                "amountUsd": 0.001,
                "asset": "USDC",
                "ms": 1200,
                "network": "eip155:8453",
                "payer": "0x…",
                "tx": "0x…"
              },
              "resource": "gas-now",
              "result": "{ network, block, gasPriceGwei }"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "network": {
                      "description": "robinhood (default) or base.",
                      "enum": [
                        "robinhood",
                        "base"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "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"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793166422/bazaar-icons/5ef39b93b2d49e3c.png",
    "lastUpdated": "2026-10-28T06:08:19.962Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-28T06:08:19.34Z"
    },
    "resource": "https://wafermap.xyz/v1/gas-now",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Gas Now — Current gas price and latest block on Robinhood Chain or Base."
}

What the leaf hashes

{"body":"4cc8da739e088c7adc28d33780f61d55c2ee3e4369347e6f2e3da48ec33bb9cd","id":752000,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178800325050,"prev":null,"subject":"x402_bazaar:https://wafermap.xyz/v1/gas-now","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x816aed1cc2aa6db6ba291f043374cf182452fd17c55a94d004b4343bab2bdd68
2. 0x3d842cdf0ed5b827b5f68a72318f881f4603f093116796f4f1fec3eea16fc983
3. 0x79dfa401956cb43325024f61f0b09787e61c368cd625033f7a981e38bdb0fc6c
4. 0x12edd587f7daa4f59728b2b0179ee72b7fbbafc9ed37ef52060bc0d2f4241bf4
5. 0x56bae891e81ec879f7b90e8f29a2cd9e41530debc3139ab6232a72214eb35594
6. 0xd2866dfa8cd6ce62f1c7c8ee17799c822bf5bfede4e1d0074c06c3e9ff331383
7. 0x18eb5d69c9a55603ce91583f3458e92ef434a447ad62f391904220391e9f8669
8. 0x277a64709bc5c1f6177999d80567d332037df0016442403207b729cee99b2f91
9. 0x1759231ef3600d9a22537baa3f71dfcf6b3e73b48e347f7e6a31f354784a3950
10. 0x8f84b6c1e9898de772beb510b34279ccde91371485c5c103a8db799939c9cc75
11. 0xd7c926044bd985b94f31a90f39dc96fa7bb0648c99f5b0dab6c48b680b4ed1ef
12. 0xd773e62e3fa245dfab9c30947560cc156240e587db3cb1b87c317110ed74b8e0
13. 0xf1b08e19add97f7d3b5db1ce7ce9b5c26cbfa721b2974dc0ed5c92e3949de6e8
14. 0x91b395e5953edc1b4bb2db979b59b2d9a20f0df47d841196dccdb5128537aaaa
15. 0xe2f9c120d14f36fdddf9b4e605c5d0b8a13b835e2380472255dc22e14b93e84e
16. 0x74cf00e07b52415c2184cf20be69d195ed2725497a6892c2f3e449497c17d0ec
17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae