Evidence row 750744

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402swag.com/api/agent/catalog"
    ]
  ],
  "name": "x402swag.com/api/agent/catalog",
  "owner_address": "0xf4f7182508895812f235c5d1c47c0cfc89fdab5b",
  "raw": {
    "accepts": [
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xf4F7182508895812F235C5D1c47C0cfc89fDAb5B",
        "scheme": "exact"
      }
    ],
    "description": "x402swag.com — merch store for AI agents and builders. T-shirts, stickers, mugs and custom print-on-demand designs. Full catalog with prices, variants and the exact buy flow in one call.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "base_url": "https://x402swag.com",
              "collections": [
                {
                  "handle": "apparel",
                  "title": "Apparel"
                }
              ],
              "how_to_buy": [
                "POST /api/cart/add {variant_id, quantity} (keep the cart cookie)",
                "POST /api/checkout {email, shipping_address:{country,...}}",
                "POST the returned payment.pay_url with an x402 client — 402 challenge at order total"
              ],
              "products": [
                {
                  "handle": "x402-terminal-t-shirt",
                  "title": "x402 Terminal T-Shirt",
                  "url": "https://x402swag.com/products/x402-terminal-t-shirt",
                  "variants": [
                    {
                      "id": 42,
                      "price": "29.55",
                      "title": "M"
                    }
                  ]
                }
              ],
              "store": "x402 Swag"
            },
            "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": {
                  "properties": {
                    "base_url": {
                      "type": "string"
                    },
                    "collections": {
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "how_to_buy": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "products": {
                      "items": {
                        "properties": {
                          "handle": {
                            "type": "string"
                          },
                          "title": {
                            "type": "string"
                          },
                          "url": {
                            "type": "string"
                          },
                          "variants": {
                            "items": {
                              "properties": {
                                "id": {
                                  "type": "integer"
                                },
                                "price": {
                                  "type": "string"
                                },
                                "title": {
                                  "type": "string"
                                }
                              },
                              "type": "object"
                            },
                            "type": "array"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "store": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "offer-receipt": {
        "info": {
          "offers": [
            {
              "acceptIndex": 0,
              "format": "eip712",
              "payload": {
                "amount": "50000",
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "network": "eip155:8453",
                "payTo": "0xf4F7182508895812F235C5D1c47C0cfc89fDAb5B",
                "resourceUrl": "https://x402swag.com/api/agent/catalog",
                "scheme": "exact",
                "validUntil": 1793158739,
                "version": 1
              },
              "signature": "0x4a325b2dd0a3aee27f12f7d325547045191960dc6ac25667a65a109cf853322d71d7673e5ba231290299a05c1ce70647bcc03869838ae915c63b2125102c41af1c"
            }
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "offers": {
              "items": {
                "properties": {
                  "acceptIndex": {
                    "type": "integer"
                  },
                  "format": {
                    "type": "string"
                  },
                  "payload": {
                    "properties": {
                      "amount": {
                        "type": "string"
                      },
                      "asset": {
                        "type": "string"
                      },
                      "network": {
                        "type": "string"
                      },
                      "payTo": {
                        "type": "string"
                      },
                      "resourceUrl": {
                        "type": "string"
                      },
                      "scheme": {
                        "type": "string"
                      },
                      "validUntil": {
                        "type": "integer"
                      },
                      "version": {
                        "type": "integer"
                      }
                    },
                    "required": [
                      "version",
                      "resourceUrl",
                      "scheme",
                      "network",
                      "asset",
                      "payTo",
                      "amount"
                    ],
                    "type": "object"
                  },
                  "signature": {
                    "type": "string"
                  }
                },
                "required": [
                  "format",
                  "signature"
                ],
                "type": "object"
              },
              "type": "array"
            }
          },
          "required": [
            "offers"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-28T03:33:59.183Z",
    "quality": {
      "l30DaysTotalCalls": 8,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-28T03:33:58.968Z"
    },
    "resource": "https://x402swag.com/api/agent/catalog",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "x402swag.com — merch store for AI agents and builders. T-shirts, stickers, mugs and custom print-on-demand designs. Full catalog with prices, variants and the exact buy flow in one call."
}

What the leaf hashes

{"body":"9c6fedef15d3b4b729f6e364ca6325d3f38ef725af10388ef8d3e758a8bdec22","id":750744,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178693212000,"prev":127175,"subject":"x402_bazaar:https://x402swag.com/api/agent/catalog","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0xbca6aa5374aa335445b46cb74865f5aa4d6ac2781dcddb13d54d43d0deb0a2e4
2. 0xaa805afb055d9318a6c57f05554c02ca4d64fb3a53b76a52087ddd318da4ff7a
3. 0x8f6c1ddbada531908995a197456250288be3eb238978b9bc19a90de8853cd34b
4. 0x2612ae97f4ab17cea565c7f2a9aa507e2e1b6bc842ca0902b389447b42eb74c4
5. 0xfbd22de46934a00c25ba1107be9b29c95c01a6d406266fb13b225f284bd6e4b6
6. 0x9b79aedcd71c47b2d22298ba7d34224b3f0d4cc17d9bec32711dfad5305ca6ae
7. 0xf4b141d78c6117247cc22a467c14a280cf289308bda10fa8d4dcc42d28962e00
8. 0x937205a33f1c06d1ab40efb51bc6400fa2ea231e9fc2def148553edf8eea2c07
9. 0xab4f3a758c0c92617a3f504aeedb4a3c630a7b177a411b84f26bb923c2b6565e
10. 0x67e3e41f71cf3ef44b4fb62bbb65a52eb4a0944131778235718b545d7c83d707
11. 0xa2f0d416b8ec481a41ee2a165fb48f6bf7beaef85ce7392f13c83d81b23f946f
12. 0xd973ea44efafb6d12a313be6fac6d5830ca5c19f25cd7b1199ded6c15feaf78e
13. 0x744c716c853a3362037fdca13f258e5f46e796ddc212d5fca6bed32d9a3b234a
14. 0xbff5cb8c10a36d79ad312f3729888eb704e81907920e704f80c8e5b670139050
15. 0xc21e7661f5d6220994a88cc71b1262eeee3b912a2d383d18f38a631c534bfd71
16. 0x32beeeb960280bc48748681cb10297ede9403461fe9c8143fdf946548e552926
17. 0xe08e8bd91858a8a10c46ecde9c29a6288b960987303173c5e882afb46ce91fa0
18. 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae