Evidence row 123380

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://underground.substratesymposium.com/buy/adam_de_mattos"
    ]
  ],
  "name": "underground.substratesymposium.com/buy/adam_de_mattos",
  "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": "The Remarkable Adventures of Adam de Mattos — Historical fiction with time travel for understanding perspective shifts and temporal complexity.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "content": "Historical fiction with time travel for understanding perspective shifts and temporal complexity.",
              "delivered_at": "2026-04-24T10:00:00Z",
              "product": "adam_de_mattos",
              "title": "The Remarkable Adventures of Adam de Mattos"
            },
            "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": "2026-10-11T03:36:22.256Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-11T03:36:22.121Z"
    },
    "resource": "https://underground.substratesymposium.com/buy/adam_de_mattos",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "The Remarkable Adventures of Adam de Mattos — Historical fiction with time travel for understanding perspective shifts and temporal complexity."
}

What the leaf hashes

{"body":"0e73e7d3fafa9351d44b454e24da49d65ac0fb21f4fec2f87670697738aa030f","id":123380,"kind":"listing","method":"baseline/1","observed_us":1793025623113684,"prev":null,"subject":"x402_bazaar:https://underground.substratesymposium.com/buy/adam_de_mattos","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. 0x0c46da7987de5737037335c6530070d094f94e99d3281d5d4d4b5dab24db57be
2. 0x29c30654e76b05bfa01db2ba02a8b771246b2e7da5c802c93f0d9a105bac94f5
3. 0xd7193fba898a829aca28aeea10f227dadc06e050b239a84e4a6fa32b18621884
4. 0xe34469e783584c27ed846d00728615282a6c8aa0f47a71f024a81cc47d90bf5f
5. 0xd07ae94f912c90d355ce40cbb30b3d969c0e534a4bf21b71ae5010861e1b119d
6. 0x518918224fed703346999d8238b086ad148e32bc6161d99882ed363e379ed609
7. 0x6602eec3c8a1c1e8afd1e9dbec985c031e51483a190d87ca94623a1a6a1ac4f2
8. 0xcf78b4b2503d3f70fecb9b557339e4546cf404a2e1fb147b2463458fdc8c12cc
9. 0x79942f02f415ac4ad16fa35ed9ebe5bc6a34290f8bf413cdd71cdf4d226a032c
10. 0xbe1b36b968b56faed4c267ac55542429bece302d9dc696aa907f7a42f10746ee
11. 0x8eb597b47b241899ba9947d79964713d71582858e40e13030f7b428006b500c7
12. 0x0295c7c2280f85143f6ea027ec5cab1cda783eeef5bca0accb9aea607c5aa3c2
13. 0x5aefcf9e3d86e125861c0d490079969110eea8fc901ec61531bba10bb58258a1
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae