Evidence row 548059

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-markettwits-news.onrender.com/alerts/fx"
    ]
  ],
  "name": "x402-markettwits-news.onrender.com/alerts/fx",
  "owner_address": "0x2c257ee70952a16f00c99d40fdff2d28f1a5b8a2",
  "raw": {
    "accepts": [
      {
        "amount": "1500",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x2c257EE70952a16f00c99d40fDFF2d28f1A5b8A2",
        "scheme": "exact"
      }
    ],
    "description": "Latest official Bank of Russia rate (RUB per 1 unit, as /ru/fx) for one currency vs min and/or max: triggered, rate, breach below_min|above_max|null, distance and the CBR date. Unknown code -> 404, cbr.ru failure -> 502 (neither is settled).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "code": "USD",
              "max": "95",
              "min": "75"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "breach": null,
              "change_pct": -1.103,
              "code": "USD",
              "date": "2026-10-22",
              "distance": null,
              "fetched_at": "2026-10-22T03:51:31Z",
              "max": 95,
              "min": 75,
              "name": "Доллар США",
              "nominal": 1,
              "prev_rate": 82.8879,
              "rate": 81.9739,
              "source": "Bank of Russia (cbr.ru/scripts/XML_daily.asp)",
              "triggered": false,
              "unit": "RUB per 1 unit",
              "value": 81.9739
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "code": {
                      "description": "ISO currency code quoted by the Bank of Russia, e.g. USD, EUR, CNY",
                      "pattern": "^[A-Za-z]{3}$",
                      "type": "string"
                    },
                    "max": {
                      "description": "Upper bound in RUB per 1 unit of the currency (e.g. 95). Give min and/or max.",
                      "pattern": "^[0-9]+([.,][0-9]+)?$",
                      "type": "string"
                    },
                    "min": {
                      "description": "Lower bound in RUB per 1 unit of the currency (e.g. 75). Give min and/or max.",
                      "pattern": "^[0-9]+([.,][0-9]+)?$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "code"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "breach": {
                      "enum": [
                        "below_min",
                        "above_max",
                        null
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "cached": {
                      "type": "boolean"
                    },
                    "change_pct": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "code": {
                      "type": "string"
                    },
                    "date": {
                      "description": "Date the CBR rate is set for",
                      "type": "string"
                    },
                    "distance": {
                      "description": "rate - breached bound (null when inside the range)",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "fetched_at": {
                      "type": "string"
                    },
                    "max": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "min": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "name": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "nominal": {
                      "type": "integer"
                    },
                    "prev_rate": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "rate": {
                      "description": "Official CBR rate, RUB per 1 unit",
                      "type": "number"
                    },
                    "source": {
                      "type": "string"
                    },
                    "stale": {
                      "description": "true when the upstream failed and a recent cached copy was served",
                      "type": "boolean"
                    },
                    "triggered": {
                      "type": "boolean"
                    },
                    "unit": {
                      "type": "string"
                    },
                    "value": {
                      "type": "number"
                    },
                    "via": {
                      "enum": [
                        "direct",
                        "proxy"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "triggered",
                    "code",
                    "rate",
                    "min",
                    "max",
                    "breach",
                    "date"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T13:17:52.875Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-27T13:17:52.507Z"
    },
    "resource": "https://x402-markettwits-news.onrender.com/alerts/fx",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Latest official Bank of Russia rate (RUB per 1 unit, as /ru/fx) for one currency vs min and/or max: triggered, rate, breach below_min|above_max|null, distance and the CBR date. Unknown code -> 404, cbr.ru failure -> 502 (neither is settled)."
}

What the leaf hashes

{"body":"687a3ad573d6c62966789e7451fad04aa93d4943799d0ef8581e1e7deef4bc20","id":548059,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133266447088,"prev":59745,"subject":"x402_bazaar:https://x402-markettwits-news.onrender.com/alerts/fx","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xd73f4a9ebd8a69ca9193a8dcd8ce9ebb6cfc2a616bb6e0768e83538cdbc08550
2. 0x3afe24e3bf5f646b14fb9c34a5a7850dc63f97fbca6f7df880fb060056645435
3. 0x8c2cf873dd90a23c142e03cf48a0a96f6a716dd26cb24a4c5aa88a4e3b1f9213
4. 0x4c275fc9b161f983eb607598d038603cbe5efceae8717ca622f3ada056809dbe
5. 0xed222ef5d9568f159a79a2c287865962d62d032dcb04fe80af4a4d0ba20a3c36
6. 0xb400ab06c81f00c5d2553185cad7d15c770e4f0724a55c016ecf13ea03f8e8c6
7. 0x6260e57ce3a3798c2ad049a8a30919edcc32bd6e63ef1a19f6751cace93c3b7b
8. 0xb78fede75d90eab0510526b7f68e03ffafee68ab325884726b8b153ae5a92ca4
9. 0x1ff34b9f1307db4505ebc35136df18eeee9edb9c563ea587cbfffc8cd78063bf
10. 0x7dfe28703c761c66ad9d29cae27c85e0dff4d77562da525ec6e7081886c8bf38
11. 0x807e77d42f625dac358f37d10caacce52866320df38cdced6736077e9aa00004
12. 0x849261a3d4118e022f8782d6166f4778e44fb4b1ae758bb02cd94e56b5df0896
13. 0x13692b463800846f580925c8ea49b43f92b7df3f9e8d32b8a18802640cca3780
14. 0xd59f3e577867f5105dd7f75598f16da8286185e426dfcdafb84e733fde2b2492
15. 0x24e3e2bb8ee1e8d20756de35f0e0c4ec8eb1f193bd2cf3f077ee1f92f211c34d
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4