Evidence row 555636

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://how.is/v1/check/site"
    ]
  ],
  "name": "how.is/v1/check/site",
  "owner_address": "0xa76a0e93c5af3fd43521300b0a58ef5f70fc44f6",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xa76a0E93C5af3fd43521300B0a58eF5F70fC44F6",
        "scheme": "exact"
      }
    ],
    "description": "Live check of one or more URLs: HTTP status, latency, DNS resolve time, resolved IP, TTL, nameservers, TLS days remaining.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "sites": [
                "https://github.com"
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "_shape": "data keyed by URL; each entry has ok, code, ms, dns_ms, ip, ttl, ns, cert_days, server, ts."
              },
              "receipt": {
                "charge_usd": 0.005,
                "rail": "x402",
                "settlement_tx": "0x…",
                "tool": "site_status"
              },
              "result": "Site status for the requested subject"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "sites": {
                      "description": "Up to 10 http(s):// URLs",
                      "items": {
                        "format": "uri",
                        "type": "string"
                      },
                      "maxItems": 10,
                      "type": "array"
                    }
                  },
                  "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"
        }
      }
    },
    "lastUpdated": "2026-10-27T19:59:09Z",
    "quality": {
      "lastCalledAt": "2026-10-27T19:59:09Z"
    },
    "resource": "https://how.is/v1/check/site",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Live check of one or more URLs: HTTP status, latency, DNS resolve time, resolved IP, TTL, nameservers, TLS days remaining."
}

What the leaf hashes

{"body":"b0bd498eb2916e9ad4ddfca673ecd1f21a3852497406a7641e382c5881fa7fb2","id":555636,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133800991182,"prev":null,"subject":"x402_bazaar:https://how.is/v1/check/site","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. 0x27d683e2e4f9f9585abd76ba2a509354aba9d92c8d14d5e89b192a5a791bc2ec
2. 0x508f0c16e1388ab602348e6de866ffb8c69675962555585c0658a5947dfed7a1
3. 0xdeea083b796abf010cbaaa645363f9aed23aaa3250ef00928de77857488719a3
4. 0xb2b3fc2de81489e41ec4199dfb87b1d5b81264c865ed6a00a278ef9116894605
5. 0xd5e63790dab4f5a6014107a40b69f7de938d40779dfc08415b68931ea776434b
6. 0xa44877cd24beca9f2239c74c12b98d28c66c0d0af7553c516748c190546dc931
7. 0x36b339da11a140a26480d3a58b9bfb23850d3378bfefed8832b3afdf5a605d7e
8. 0xccd8f3ed6e649c388c9d3f034067d7ce1cd0205599dca04983f6a7af27cd8c1d
9. 0xbbb92828100c98f02b6f3f9c1e0ee00ba18517427a5726fcac15c23e39a8e1ed
10. 0x58a55125c2389f16bd21647419b9fa69b354f91d8dd589440e8095b1281b3947
11. 0xbae4a65d8ae80540633da98a42bc7238b1aae389589d7285d2f85046a743e3a5
12. 0xf5aa0adf486bca586314afc4935e732d521d3d8275e51eb4c8d2de46b00ea2c1
13. 0x28be2f2303fcac4decdb6323b0f4ee8f8a31038beb758eaafc604a98626292e4
14. 0x8ff18b1523f9fbdd16a5796cbe184b46854c06256508af8de5509b598370c725
15. 0xa383a1cfe9b3f6af67eb4c7642564b9424d46d7fca90e7ba175d549f8b67dd0c
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4