Evidence row 1791502

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://minty-sprout.onrender.com/v1/fx-rate"
    ]
  ],
  "name": "Foundry",
  "owner_address": "0x11dced0487ca3e7d9032029dcb302253ccf4e0de",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x11DCED0487cA3E7d9032029DCb302253ccF4e0DE",
        "scheme": "exact"
      }
    ],
    "description": "Currency exchange rates from the European Central Bank: convert an amount or list rates. Input: '100 USD to EUR'.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": "100 USD to EUR"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "amount": 100,
              "base": "USD",
              "date": "2026-10-30",
              "rates": {
                "EUR": 89.51
              },
              "source": "European Central Bank via Frankfurter"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "input": {
                      "description": "'<amount> <CUR> to <CUR>' or 'USD EUR,GBP'",
                      "maxLength": 8000,
                      "type": "string"
                    }
                  },
                  "required": [
                    "input"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-31T22:46:25.655Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-31T22:46:25.487Z"
    },
    "resource": "https://minty-sprout.onrender.com/v1/fx-rate",
    "serviceName": "Foundry",
    "tags": [
      "currency",
      "fx rate",
      "exchange rate",
      "forex",
      "convert"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Currency exchange rates from the European Central Bank: convert an amount or list rates. Input: '100 USD to EUR'."
}

What the leaf hashes

{"body":"c41cc262221f2fb7781ddf4f270b0aefc0d03b66fe0701aca31d8c3b1bfe26a9","id":1791502,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793559984842686,"prev":null,"subject":"x402_bazaar:https://minty-sprout.onrender.com/v1/fx-rate","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x911044d57f829e26ca6e9c2e9daed7abcf33f9c9d456d2fecddc6bbe8308bee7
2. 0xfbe0aec1ebd4ac8da22801465ea16d117c09fb45d42bfa981167c64b835f3097
3. 0x0a06492d3c9f6c2ad74ac06d315744d3d6c764ad79c0689ee22ca58d4f0c53f2
4. 0x11c5c00e054b540113225b5dcd263358da8f6e1a754152a89e58b3dbdce51d10
5. 0x8a8820210a2557433882ebbe0acd7f239a81046b701b1e223341df7702f244ad
6. 0xa9aac25183bae7bb25361edef30fcb9d8d6dc39e876920cabd655703d411326d
7. 0x830923e0a8e26120b3efa7858e891f5728974a830d9bda146cd89c7558700fe8
8. 0xc30186727f2fdccc21e3a78d8ffff4a98bbd116ad4095738bcafcf0d8af09bf5
9. 0x218d2402f4b3199f4a8493cd735d31940dc030e66e2d02ec695974bc29381f70
10. 0xfe827310232ee7a58449d705f5e027873474330d8d877f35fb492852fb4f5b01
11. 0x0d62d40168544b2c7626fa0a4c45114d5a83b4be60169eeefb590c1167fa47ce
12. 0xa1e0ceffff06b409db03805d7924d68debcf75dd26a422b9d8cac7539ba88369
13. 0x592c6bf7478ece75e30eaddee3c7949403bcafb35d8489fe5310c10667a2df24
14. 0x43a0d126875c656347b68ba3c0196959406aa8df8a7cd284fd2814ddd386322c
15. 0x23107b06227fe01d939429fa5248f5555093c421dfc6b8bc6ba3518a65263d17
16. 0xc2b1c84ef3531511a3d8d9db5ff9eeca2725a3782e7f9c4ac87fc0f1588349fa
17. 0x0c618c42b286ad61acd8204aa6dcf024b8b041d3759aa585bf4e221abc39cb5d
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90