Evidence row 75795

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://geometry.openverbs.com/v1/polygon"
    ]
  ],
  "name": "Polygon",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Area (shoelace formula), perimeter and centroid of a simple polygon given its vertices in order. Vertices are treated as a closed ring (last connects to first).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "points": [
                [
                  1,
                  1
                ],
                [
                  1,
                  1
                ],
                [
                  1,
                  1
                ]
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "points": {
                      "description": "Vertices as [x, y] pairs, in order.",
                      "items": {
                        "items": {
                          "type": "number"
                        },
                        "maxItems": 2,
                        "minItems": 2,
                        "type": "array"
                      },
                      "maxItems": 10000,
                      "minItems": 3,
                      "type": "array"
                    }
                  },
                  "required": [
                    "points"
                  ],
                  "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"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-02T02:17:31.685Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-02T02:17:31.528Z"
    },
    "resource": "https://geometry.openverbs.com/v1/polygon",
    "serviceName": "Polygon",
    "tags": [
      "polygon area calculator",
      "shoelace formula",
      "polygon centroid",
      "calculate polygon perimeter",
      "vertices to area"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Area (shoelace formula), perimeter and centroid of a simple polygon given its vertices in order. Vertices are treated as a closed ring (last connects to first)."
}

What the leaf hashes

{"body":"948a7c19a9ad032862ab3dfd108708e329f7274152b456715d34f8dd63dfaebf","id":75795,"kind":"listing","method":"baseline/1","observed_us":1793025491100468,"prev":null,"subject":"x402_bazaar:https://geometry.openverbs.com/v1/polygon","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. 0x337899b23d0969fde9f93aa859ad7e501443c2584c126642c7679c337d1a9a39
2. 0x9cd48d6bd10b205b8de373fa21c1617da113a73cf4a7b40d2d5df672ee22d137
3. 0xa52b7cee4530e8ec96e4fe1b1baa37e9f0fa809a87fad5a9e7d2d1c992dccace
4. 0x22a45005526df5ac783b05816e1a896484819d65610b03c0aa283754949630f9
5. 0x9127805b310ff37e72e66ce51c7f0f189f0eca9034b2e3f947f2f478d18c2049
6. 0xd750c0d0380c970a42b47b240e26110e849a9edcc2838805b1506bc483e37c49
7. 0xdb6cde9e3b51d196f57e90cf1f2ca8b16dc0f33837ea16865a82009f41072e6a
8. 0x0d01047446cd10eac324e76aef667779c111a4ede53a8d602aa75adb6d9431bc
9. 0xd9be53c84973e568398e1ea9f9b793041cbeded3c0f9e8e2397ac9b282867226
10. 0x147a93b247f471325988f4856b3ff7043d5e5fa80b374a5deccea90eab3af0fe
11. 0xc99ea26556ddad6b2fde7887de8c0190d3a7c645402227c5a281ba47e02a67e5
12. 0x2f4617d7a962f32849050ad5649d9dc4f962fd8618073cfa8519e6f862dfcef8
13. 0x08de74b7fb265ddb83e4c673da8a94e5f71829b2e6e7464c71c5138e450f2217
14. 0x4338355a835617a26aa0bfcc971e84eb030d84e2aa840e3c8af958921dd080c7
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae