Evidence row 752767

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.professorsausages.com/ipo-calendar/withdrawn"
    ]
  ],
  "name": "IPO Calendar",
  "owner_address": "0x54ebfcf3870439b9db62381848c5dabc05c70d5b",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x54ebFCF3870439B9db62381848c5DabC05c70d5B",
        "scheme": "exact"
      }
    ],
    "description": "IPO registration withdrawals (Form RW) with time-in-registration — the market risk-sentiment tape",
    "extensions": {
      "bazaar": {
        "category": "finance",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "cursor": "eyJvIjoxMDB9",
              "days": "90",
              "limit": "50"
            },
            "type": "http"
          },
          "output": {
            "properties": {
              "about": {
                "description": "What this response is and where its data comes from, in one sentence.",
                "type": "string"
              },
              "count": {
                "type": "integer"
              },
              "freshness": {
                "description": "How fresh the data is, measured when you called. `age_seconds` is the number to act on; `max_age_seconds` is the refresh cadence (null = deterministic, cannot go stale).",
                "properties": {
                  "age_seconds": {
                    "minimum": 0,
                    "type": "integer"
                  },
                  "as_of": {
                    "description": "Newest datum this answer is based on (ISO 8601).",
                    "type": "string"
                  },
                  "max_age_seconds": {
                    "minimum": 0,
                    "type": [
                      "integer",
                      "null"
                    ]
                  },
                  "note": {
                    "type": "string"
                  },
                  "tier": {
                    "example": "nightly",
                    "type": "string"
                  }
                },
                "required": [
                  "tier",
                  "as_of",
                  "age_seconds",
                  "max_age_seconds"
                ],
                "type": "object"
              },
              "nextCursor": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "related": {
                "additionalProperties": {
                  "type": "string"
                },
                "description": "Next steps as paths on this origin. Each is priced by its own 402 challenge; GET /.well-known/x402 prices the whole origin in one free call.",
                "type": "object"
              },
              "window": {
                "properties": {
                  "days": {
                    "type": "integer"
                  },
                  "to": {
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "withdrawals": {
                "items": {
                  "properties": {
                    "cik": {
                      "type": "string"
                    },
                    "firstFiledAt": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "monthsInRegistration": {
                      "type": [
                        "integer",
                        "null"
                      ]
                    },
                    "name": {
                      "type": "string"
                    },
                    "registrationForm": {
                      "enum": [
                        "S-1",
                        "F-1",
                        null
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "sic": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "sicDescription": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "withdrawnAt": {
                      "type": [
                        "string",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "cik",
                    "name",
                    "withdrawnAt"
                  ],
                  "type": "object"
                },
                "type": "array"
              }
            },
            "required": [
              "window",
              "count",
              "withdrawals",
              "nextCursor"
            ],
            "type": "object"
          }
        },
        "routeTemplate": "https://x402.professorsausages.com/ipo-calendar/withdrawn",
        "schema": {
          "properties": {
            "input": {
              "properties": {
                "queryParams": {
                  "properties": {
                    "cursor": {
                      "description": "Opaque pagination cursor returned by the previous page.",
                      "type": "string"
                    },
                    "days": {
                      "description": "Only withdrawals within this many days.",
                      "type": "string"
                    },
                    "limit": {
                      "description": "How many results to return.",
                      "type": "string"
                    }
                  },
                  "type": "object"
                }
              },
              "type": "object"
            },
            "output": {
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "help": {
        "docs": "https://x402.professorsausages.com/ipo-calendar",
        "example": "https://x402.professorsausages.com/ipo-calendar/withdrawn",
        "openapi": "https://x402.professorsausages.com/ipo-calendar/openapi.json",
        "sample": "https://x402.professorsausages.com/ipo-calendar/sample"
      }
    },
    "lastUpdated": "2026-10-28T05:18:12.015Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-28T05:18:11.605Z"
    },
    "resource": "https://x402.professorsausages.com/ipo-calendar/withdrawn",
    "serviceName": "IPO Calendar",
    "tags": [
      "ipo",
      "sec",
      "edgar",
      "s-1",
      "424b4"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "IPO registration withdrawals (Form RW) with time-in-registration — the market risk-sentiment tape"
}

What the leaf hashes

{"body":"9b924225a8e71f0dfbc18152f39a4b789b05943a408edf701f4a58e3abf1db0f","id":752767,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178843044653,"prev":126752,"subject":"x402_bazaar:https://x402.professorsausages.com/ipo-calendar/withdrawn","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. 0x21f53e0f4c2d1859efbf6dbe63f822f8e70e3d239860149f4807e3112d100f29
2. 0xa360924a7ff4e5954c34c3871f36d383676e4435bfce75c274a1c873bc277d30
3. 0x8ab3e683c1f60cbc5188955196d046abe7741c29602e9fc2d620b51d313a0afc
4. 0x0c70dbe5a65cd20f4b4adf8107d3fcde7ac4256b36ba0d1b58a9caef3d11f88c
5. 0x468da4f59aeddc921bdf251e1d463a2c8c95715547031a3c3f2c6bd919038cee
6. 0xe46a1cc484f226766f4a967fb2a45310db5a4471192ca45dd1460276eac2bc16
7. 0x84dad090637397cfb2412759c1da74ca1f0d966e5ed37f77f1cd59030340f0a3
8. 0x306e647b84b598cac2234b8e65146f11e5095fac9de5b39e8401d2ee5d768f33
9. 0x607f82b74caf754a0888a91481f157f78967f20d445f3a9c3f5ccfe61b973642
10. 0x91280b72476394457475e4e19eb98fdbbb4879aebeb74114acce5c4e38bcfc7b
11. 0xf66811b51cad5ddcf3ec211ff519a9e540ba3bd77ead1283f18695b95d7109ca
12. 0x1afe025bf0d97efced13e77f68b5e16c7bfb56ea13cca50c8aed2d156e60d500
13. 0x3ce83ad86ff4f1711072c47e954f682b6a67bc60b2342af27fa493f972b6b9c0
14. 0xa45c19ee1ddfa3971a75affe2da0c01e0a09406bb4b50c48e0d9cf0e082801a3
15. 0x4698ebc7cbcb2286f661b867355eb6a9183e884482ee16965889e886b17d19ac
16. 0x35e8995c30094446ec790423171382fccb377081b921295b0ae3840cc2c4f52c
17. 0xf078ea7d84d98dbeffed23d8e67b36751e60464ffd4cfdc005e0aa6f8cb9b459
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae