Evidence row 123379

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://underground.substratesymposium.com/buy/acqua_alta"
    ]
  ],
  "name": "underground.substratesymposium.com/buy/acqua_alta",
  "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": "Acqua Alta — Framework for operating effectively when conditions are suboptimal or chaotic.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "content": "Framework for operating effectively when conditions are suboptimal or chaotic.",
              "delivered_at": "2026-04-24T10:00:00Z",
              "product": "acqua_alta",
              "title": "Acqua Alta"
            },
            "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": "2026-10-11T02:51:37.374Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-11T02:51:37.271Z"
    },
    "resource": "https://underground.substratesymposium.com/buy/acqua_alta",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Acqua Alta — Framework for operating effectively when conditions are suboptimal or chaotic."
}

What the leaf hashes

{"body":"164ca06b603d0ff8285325ce0b5e5a71abba125288554ee95b239e9fd8aee96f","id":123379,"kind":"listing","method":"baseline/1","observed_us":1793025623112561,"prev":null,"subject":"x402_bazaar:https://underground.substratesymposium.com/buy/acqua_alta","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. 0x5afbf6251bd0d4e1e5c75f272e5bad5f99a4868f4e9c12401123f543c6f67434
2. 0xa3657b69e6a8e681988744284393fa1578d65688634f3286886766baee3f498f
3. 0x0933ed4ede34926f53f8700a2a6b28a4efb9cf792a565a0bad1e950b87b05d86
4. 0xd7d6bbf55b051e41c0c8b67bafaa4ecf92c7ceab8e9978cdffa40bc97849fc58
5. 0x2f1b349b4452ca5df0ae02cdb0ab4a646025d970a9f45749092337881aa31dfd
6. 0x7393190f1534e672449b2a6c16533152d29238eb37ef0893ccfe150bf8805898
7. 0xa22e1714103b33c90aa044a94de0fb89147d35c5e985e277ffd2a3b2627c9aa7
8. 0x1c15b5a1bee48f3c2c1da6db4e6c822beb6ec268b29d87e0406d39978e1a0c84
9. 0xeafd2ccd6be081ef2723acf3fcea6de4a3d7f38a95baf55daaebabd2626a75d3
10. 0xd973b6f369dcc849706ecbfa8b548968c407c61af9d74df524ebe4f47698f455
11. 0x31cff173ca81a1fa9b4d9989ccba135fa83af9284e85748cedd858f7cc6cb7c0
12. 0xc4c7772b121e7eab8b40f10646f850453150d76d672e4926bf2534db20273157
13. 0xc8abb13c711b67d9f1ef145286ed450a0f5566f054a4b290ea3d711873bcbe20
14. 0x5cdeb4648502e0633d01cc4f3379d48cccb9d4f528565b2868eb93db0df9e829
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae