Evidence row 516178

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Download one HKEx document by its URL and read, page through, or search its text.\n\n    ``link`` must be an HKEx document URL from search_filings (host ``www1.hkexnews.hk``);\n    any other host is rejected. With ``extract=True`` (default) the response includes up to\n    30 ``tables`` and a window of extracted ``document_text``: ``max_chars`` characters\n    starting at ``offset``. Long reports return ``next_offset``; call again with it to read\n    the next window. Pass ``query`` to search the whole document instead: the response then\n    lists up to 20 case-insensitive matches with their offsets and surrounding text, plus\n    ``match_count`` — use a match offset to read that part. Set ``extract=False`` for size\n    and content type only.\n    ",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "extract": {
            "default": true,
            "description": "Extract text and tables; false returns size and content type only",
            "type": "boolean"
          },
          "link": {
            "description": "HKEx document URL from a search_filings result (host www1.hkexnews.hk)",
            "type": "string"
          },
          "max_chars": {
            "default": 300000,
            "description": "Maximum characters of document_text to return in this window",
            "maximum": 300000,
            "minimum": 1,
            "type": "integer"
          },
          "offset": {
            "default": 0,
            "description": "Character offset where the returned text window starts (use next_offset to page)",
            "minimum": 0,
            "type": "integer"
          },
          "query": {
            "description": "Optional text to find in the whole document; returns matches with offsets instead of a text window",
            "type": "string"
          }
        },
        "required": [
          "link"
        ],
        "type": "object"
      },
      "name": "get_filing"
    },
    {
      "description": "Report this live gateway's version, transport, and hard limits. Reads nothing.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "required": [],
        "type": "object"
      },
      "name": "get_server_info"
    },
    {
      "description": "Browse what filings exist in a date window (at most 31 days) without downloading.\n\n    ``from_date``/``to_date`` accept YYYY-MM-DD or DD/MM/YYYY. Returns counts of the\n    categories (headline categories), document types, and stock codes present in the window,\n    each sorted by frequency and capped at 50 values, plus the distinct counts. Optionally\n    narrow to one ``stock_code``. Use this to discover valid filter values before calling\n    search_filings; it fetches the window once and extracts no document text.\n    ",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "from_date": {
            "description": "YYYY-MM-DD or DD/MM/YYYY",
            "type": "string"
          },
          "max_results": {
            "description": "Maximum filings to scan (default 50, cap 200)",
            "maximum": 200,
            "minimum": 1,
            "type": "integer"
          },
          "stock_code": {
            "description": "Optional exact HKEx stock code to narrow the facets",
            "type": "string"
          },
          "to_date": {
            "description": "YYYY-MM-DD or DD/MM/YYYY",
            "type": "string"
          }
        },
        "required": [
          "from_date",
          "to_date"
        ],
        "type": "object"
      },
      "name": "list_filing_facets"
    },
    {
      "description": "Search live HKEx filings in a date window (at most 31 days).\n\n    ``from_date``/``to_date`` accept YYYY-MM-DD or DD/MM/YYYY. All filters are optional and\n    combine with AND semantics: ``stock_code`` matches exactly (e.g. ``01461`` or ``1461``);\n    ``title_query``, ``category`` and ``stock_name`` are case-insensitive substrings (e.g.\n    category ``Dividend``); ``document_type`` matches the file type exactly (e.g. ``PDF`` or\n    ``HTML``). Filters are applied to the fetched window, so widen ``max_results`` to catch\n    rarer matches. ``max_results`` caps the number of filings fetched and returned (hard cap\n    200). Returns the matching filings — each carrying ``fileType``, ``sizeText``,\n    ``category`` and ``newsId`` metadata — plus the HKEx-reported total for the window. Use\n    list_filing_facets first to see which categories, types and codes exist in a window.\n    ",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "description": "Optional case-insensitive substring of the headline category",
            "type": "string"
          },
          "document_type": {
            "description": "Optional exact file type, e.g. PDF, HTML, XLS, DOC",
            "type": "string"
          },
          "from_date": {
            "description": "YYYY-MM-DD or DD/MM/YYYY",
            "type": "string"
          },
          "max_results": {
            "description": "Maximum filings to fetch and return (default 50, cap 200)",
            "maximum": 200,
            "minimum": 1,
            "type": "integer"
          },
          "stock_code": {
            "description": "Optional exact HKEx stock code, e.g. 01461",
            "type": "string"
          },
          "stock_name": {
            "description": "Optional case-insensitive substring of the stock short name",
            "type": "string"
          },
          "title_query": {
            "description": "Optional case-insensitive substring of the filing title",
            "type": "string"
          },
          "to_date": {
            "description": "YYYY-MM-DD or DD/MM/YYYY",
            "type": "string"
          }
        },
        "required": [
          "from_date",
          "to_date"
        ],
        "type": "object"
      },
      "name": "search_filings"
    }
  ]
}

What the leaf hashes

{"body":"155a33fa8af34187649dddc5f335337023e689f3528d692a5aeccf053d527e9b","id":516178,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793120480944685,"prev":null,"subject":"051f2e6a-45fd-41dc-b749-2b031264962c","subject_kind":"endpoint"}

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. 0x93d7fbd2d989faca995c4814ac3849146f969b7e03f3d8ce56c07e3a9466b735
2. 0x997f6f421c499dda3fd90b624c03c64c065c4331259776b884c08119d762e420
3. 0x2300fe2970d9bee46bd467528b1ff668887cc835ab1b0e309f8d41862efcdde3
4. 0xb0684ea1d9fa1a30eecac22b995ce1440c06f053f336f24f50deadfc8e5fa498
5. 0x595a04cea492390e98d5209a8b2d945afa5e624c46a7a7e786bf482f94b49471
6. 0x47399889656b2b1fe943502a7cdc3cc9c2276061215e0749a4133e1871fe0129
7. 0x6d1104f88708a0164d38071da1a04cde5723fc6458b004613f12960a26ee9570
8. 0x07a7fe6faea9e6783e7d744204e46d219f8b3cd023abca6101a24309498f19d0
9. 0x49488bd9470801194ccd62a6579c932246c1328a49b07a75bf6c503ab26ee3f0
10. 0xa3c75c95b1bbba0934d7f793ec55bbe2610c0cca1b24b28b91c7b08f99f514b9
11. 0x62768d685fdf68a23a3746fae9fbbdd9613e343468823ae92676080679a3f19f
12. 0x21b50531db6db8c65523fd5559cda8006afb66474d66107f3c29e6cd41ec3fbe
13. 0x59c5c792b40d9054ce2b84a60af97fa54f2e1a2a369a6a52dc3f45de41128e97
14. 0xa3c9c760ee424c178bab782711c2b9d3e15a80a6fde99165972cb75b306bb8b4
15. 0xb4f7223140c8a36cb87a63d77cf617086d9968dc4658f03e102571ebe06e9ed6
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4