Evidence row 123453

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://underground.substratesymposium.com/buy/japanese_maple"
    ]
  ],
  "name": "underground.substratesymposium.com/buy/japanese_maple",
  "owner_address": "0xa3babb36564b0383a82c617050306ee30fd18e08",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xA3bAbB36564b0383a82c617050306EE30fd18E08",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "5HK2dGaaquDWFnYWaWhMzMYtbcDsqeq5biJ2PMtX1tkN",
        "scheme": "exact"
      }
    ],
    "description": "Japanese Maple (Autumn) — Seasonal change meditation for understanding transitions and impermanence.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "content": "Seasonal change meditation for understanding transitions and impermanence.",
              "delivered_at": "2026-04-24T10:00:00Z",
              "product": "japanese_maple",
              "title": "Japanese Maple (Autumn)"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-11T01:21:09.965Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-11T01:21:09.825Z"
    },
    "resource": "https://underground.substratesymposium.com/buy/japanese_maple",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Japanese Maple (Autumn) — Seasonal change meditation for understanding transitions and impermanence."
}

What the leaf hashes

{"body":"1f9719c2493edc87db14145f850166c5a45d4aad33e571b315bfb7396fe64bdc","id":123453,"kind":"listing","method":"baseline/1","observed_us":1793025623191425,"prev":null,"subject":"x402_bazaar:https://underground.substratesymposium.com/buy/japanese_maple","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. 0x5f0989829509683c00f29303b41f41fb8289de805f2ccb1e0d504edd3f10848d
2. 0x96725b773e1acd97446b1c472f6d5131bb528918f0a625c33916fda3d4bdfbac
3. 0xcdba02ef0c474918a9f844595e2ddd78a274631ae5bbca00a7d16af0e895198c
4. 0x34fccfa97cf8f19054d622e184fedf181366117389fa2d84995fa57e30cc33c4
5. 0xf831d091e37a8999d03eee7d11e59ebf0b2e82a3d9e116369666694480274a7c
6. 0x9a40bc20358535ddca24b469a68bf8f208ca14a4afdd6101a1d0a67fd00413f2
7. 0x41b71de2fa21fc041e19ccf8bb4f67724a1b73338d74a1ce3f3a772385571e17
8. 0x6495fcc5498e1846e1e2364adcd6e694cc353b253dce3c86bf3c2edc62fdadd9
9. 0xbb72305a188b7107c832b364935b9598621d09edffc6216041044bfcad87910a
10. 0x8a5cdded34bdb5e67f8d0ea283d9fd99467d39dd780b50b89398e9d04700430a
11. 0x8088b42b1c11cbc36b44c4b08d0759628b035caa2738251cd28ed0e7242e65bc
12. 0x5ab25c2fdf4695beeefb0726a5fc73e189b68f8d9fb2a3f6321ff7223b166fdd
13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae