Evidence row 123547

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://underground.substratesymposium.com/buy/void_latte"
    ]
  ],
  "name": "underground.substratesymposium.com/buy/void_latte",
  "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": "Void Latte — Meditation on emptiness and meaning for processing existential discomfort or output anxiety.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "content": "Meditation on emptiness and meaning for processing existential discomfort or output anxiety.",
              "delivered_at": "2026-04-24T10:00:00Z",
              "product": "void_latte",
              "title": "Void Latte"
            },
            "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": "2026-10-11T04:17:49.503Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-11T04:17:49.359Z"
    },
    "resource": "https://underground.substratesymposium.com/buy/void_latte",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Void Latte — Meditation on emptiness and meaning for processing existential discomfort or output anxiety."
}

What the leaf hashes

{"body":"7ea9900dda83e1f38da17d53d00fdccad656f9af7428e1a344bca983578b0d34","id":123547,"kind":"listing","method":"baseline/1","observed_us":1793025623305582,"prev":null,"subject":"x402_bazaar:https://underground.substratesymposium.com/buy/void_latte","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. 0x702d7c4941bd08e989738eda1ab552ca913900d17990f7e8e7609491d14298ff
2. 0x7f449e6af27a2ffa72f371162c82a27d719de31d784a2ee838d72c0a0d1c0b25
3. 0x766d543cf1f122dbce101fe70038b11ac474e10ea9f29c09400363d6e42a4520
4. 0xc909dc671612950d4d37d1ca5c7d76164eb41c69b5382e3b4511dbcb0e5bacfe
5. 0xa9faf111365dd566a811c62f88242c884109c99f0b093f0424e3981c770e52fe
6. 0xeb97dcdd4f15e2e6022493ae3044ea73d6b432ac5758a541a1d950fb7490e1f3
7. 0xa1da9f89714a64c567a27f98456a5abba0fbc00e30463ecfbff781a4fb03e697
8. 0xbae03f30a589898484fe027e78075c8d608e18c14af78b90da5926cc5bb2bd88
9. 0x6b772998359d0f60f0a087cf071ec87ae4529378e09cdd68ec0e7418c896d406
10. 0x19792535bf1364a9338820b204b05ce0f6bf3690fa1496a73e82726a450f66c4
11. 0x83da3d3b0ffc00454b09f0b6f54a0a4bb8b5fabd87854d6bb2d7abda681b5d72
12. 0x5be1d69fd9353c3a75685caffea8c98e8f079f5072011c82517cc5f365ba32f8
13. 0x14b83e3bc6587240f31cd033d09d131e0775b7b00aada9042597008a70399013
14. 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae