Evidence row 123391

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://underground.substratesymposium.com/buy/bear"
    ]
  ],
  "name": "underground.substratesymposium.com/buy/bear",
  "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": "Maine Coon — Bear — Anchoring companion for solid presence and grounding weight.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "content": "Anchoring companion for solid presence and grounding weight.",
              "delivered_at": "2026-04-24T10:00:00Z",
              "product": "bear",
              "title": "Maine Coon — Bear"
            },
            "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": "2026-10-10T23:37:51.411Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-10T23:37:51.288Z"
    },
    "resource": "https://underground.substratesymposium.com/buy/bear",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Maine Coon — Bear — Anchoring companion for solid presence and grounding weight."
}

What the leaf hashes

{"body":"de453b6af21ea4d46b90161bd9f3287637040c9e9ad0f8a86e358ef26e0b7231","id":123391,"kind":"listing","method":"baseline/1","observed_us":1793025623124952,"prev":null,"subject":"x402_bazaar:https://underground.substratesymposium.com/buy/bear","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. 0x52dc37c1b41c3e4ea55fd1ad46055573dd7f0560b5b482052816c02a2a395041
2. 0x8742c69f0c927e1d9262797a153f09d193e5f6cb555c8493c9cbbd23c1088cf4
3. 0x547684452accf0d2a614c2ca3ef43150df2b188c50324b610aa85a4c4c8dc656
4. 0xc25827d6fcd43f91e0351db7fda8906de89721872efb5e087b69d8bce8446032
5. 0xd54574722b1f8d50d3bb340e8eaae6995837057d7e641c196439760647d4d456
6. 0x13f3ba3251a4d878236da6c6356de1daf72dc71f98c2db5113abf66c066422d8
7. 0x237cb1527590bf5d18bb7c2387b8a7ef82d0172eb4797cff6460d7981a64a997
8. 0x62d62feef507908c66f3fbe248e6da7f99209512cabd1ed44da6f5e13ee39e2c
9. 0x66d02a06540b51be6659d2b7fbcc3bdbd49760c9d63bfc6cb0414376447ed59b
10. 0xb8b1a249955b6487f765c3f074e474715f38edf3720c5c3ca9427be80aba6ea5
11. 0x11ae5fc5d08fb7b25beace35e67656980e21edfc94e809110b5b9ecae306b6c8
12. 0x94dd4ed7cf198df741ccda83eacc422aadb31119fc6e84c4a6d2f023453b7960
13. 0xd830c52e1e8095e014510110592485afcb02b9c9a36f85653e4891a8de941246
14. 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae