Evidence row 1790244

Observed 1 Nov 2026, 19:05 UTC, by sync.x402_bazaar/1.

Kind: listing
About: source_record x402_bazaar:https://agentstall.nilesh-b54.workers.dev/v1/exchange-rates
Recorded: 1 Nov 2026, 19:05 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: bfcefe368d478ea0d238b17c094b7fb5fb22644f6abab75be6b2aaafb7738698
Leaf: 0xceb04d46f76071ee0ccc9bb199c5b17c957d5eb94441fd607eddb870dcc4e984

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agentstall.nilesh-b54.workers.dev/v1/exchange-rates"
    ]
  ],
  "name": "AgentStall ZA",
  "owner_address": "0xa5b46001f5faafa9d7bb4efeea6c724d52567a02",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0xA5b46001f5fAAfA9d7bB4efeEA6C724d52567a02",
        "scheme": "exact"
      }
    ],
    "description": "Daily exchange rates with African currencies by default: South African rand (ZAR), Nigerian naira (NGN), Kenyan shilling (KES), Egyptian pound (EGP), Ghanaian cedi (GHS), Moroccan dirham, CFA francs and more, against USD, EUR or any base currency, with optional amount conversion. Reference mid-market rates from an open daily dataset, not official central-bank fixings. Useful for pricing, invoices, quotes and reports.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "amount": "100",
              "base": "USD",
              "symbols": "ZAR,NGN,KES,EGP,GHS"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "base": "USD",
              "converted": {
                "ZAR": 1670.89
              },
              "date": "2026-10-31",
              "rates": {
                "EGP": 55.88,
                "KES": 129.85,
                "NGN": 1346.55,
                "ZAR": 16.7089
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "amount": {
                      "description": "Optional amount in the base currency to convert",
                      "type": "string"
                    },
                    "base": {
                      "description": "Base currency code (default USD)",
                      "type": "string"
                    },
                    "symbols": {
                      "description": "Comma-separated currency codes to return (default: 18 African currencies plus USD, EUR, GBP, CNY)",
                      "type": "string"
                    }
                  },
                  "required": [],
                  "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"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793382554/bazaar-icons/9978d6da98a52395.png",
    "lastUpdated": "2026-11-01T09:51:44.81Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-01T09:51:44.024Z"
    },
    "resource": "https://agentstall.nilesh-b54.workers.dev/v1/exchange-rates",
    "serviceName": "AgentStall ZA",
    "tags": [
      "south-africa",
      "africa",
      "tenders",
      "public-holidays",
      "business-days"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Daily exchange rates with African currencies by default: South African rand (ZAR), Nigerian naira (NGN), Kenyan shilling (KES), Egyptian pound (EGP), Ghanaian cedi (GHS), Moroccan dirham, CFA francs and more, against USD, EUR or any base currency, with optional amount conversion. Reference mid-market rates from an open daily dataset, not official central-bank fixings. Useful for pricing, invoices, quotes and reports."
}

What the leaf hashes

{"body":"bfcefe368d478ea0d238b17c094b7fb5fb22644f6abab75be6b2aaafb7738698","id":1790244,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793559932974266,"prev":null,"subject":"x402_bazaar:https://agentstall.nilesh-b54.workers.dev/v1/exchange-rates","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).

0xceb009507aa95703a1348c0444720149bffb7c9760ca602ad8fc586ebfbfd325
0x0b6e08a215aed701f70aa0bcb9b737602d83517cbf12728019447c8cd5ac6e5e
0xd1655d7679cb5d291f7c5f1f8c9a49cb26378018d0e4335ff756c8dd55ccb4d6
0x6168c9b5414a490e318a233d3ac7ebfec2230d60d581a8dd5647f4ea25af0658
0x9c49511a91b9642872fb1ae71684758ccc7ef0c7d6f337dc2827287ca5b7b45c
0x89e8b472ca3619bb5cc39066cbce2096ceb6f7d074965dd3e6426a133f5f00dc
0x4986d30028c4121ea3a8973f3e46b43e4c6e7261790657332b8e1a90bdd7b048
0x95a43210077e3e4aba740385b15849f584d0e4219be5247d880ebeda25b86346
0x2f6d799188e1f2e457ebc5370cf3838c26ae3a823156138711366ab07c9cc391
0x2ef4950ac510d43eb1435f144e434d788269fd6a24a8e175514da02180e2b5a5
0xd7bfbbb77dc5d5d466b6521e0baf91545ebd31875eed299a318febca71ae2180
0x31c1c30af3d362a5daf962324b8763f11ef40cbbfc221f01b1d00db92e30a88f
0xdac71a6781318034c1afd4a1a615965f2837dd22d52db9dcf4ff6d934cdde2b9
0xc837737eae003d6217621fce98752787bb2b4be80aad499398bcd6fa49bd6996
0x537331ef190eaefb4419f2a4558b952aaf9435d759df0b0c118b7df609ec1687
0xfc183bee85dc11a067fb710c6eb88824b94a516ddbdf2717b839e672a2206a7e
0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root: 0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3
Chained: 0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4
Published: On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90

How to check it · This row as JSON