Evidence row 305499

What was observed

{
  "count": 10,
  "tools": [
    {
      "description": "Is a question about a given count stage answerable at a given time? Returns verdict ok / too-early / inside-window / too-late, settle_after, and the resolvable sources. Built to stop questions that read the provisional count when they mean the final one.",
      "inputSchema": {
        "properties": {
          "ask_at": {
            "description": "ISO date-time; default now",
            "type": "string"
          },
          "election": {
            "description": "Election id, e.g. \"brazil-general-2026\"; list ids with upcoming_elections",
            "type": "string"
          },
          "race": {
            "description": "Race id, e.g. \"president\"; optional when the election has one race",
            "type": "string"
          },
          "stage": {
            "description": "Default final-result",
            "enum": [
              "exit-poll",
              "election-night",
              "media-call",
              "intermediate-count",
              "final-result",
              "court-validation",
              "government"
            ],
            "type": "string"
          }
        },
        "required": [
          "election"
        ],
        "type": "object"
      },
      "name": "check_question"
    },
    {
      "description": "Coverage, stale records, races still lacking a results page, and publisher-gate warnings, as counts with the first 20 of each (full report at /v1/health). Use to judge how far to trust an answer.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "dataset_health"
    },
    {
      "description": "Full record of one election: races, polls-close times, every count stage window (exit poll, election night, intermediate count, final result, government) with confidence and citation, the authority, sources, recorded vote counts, whether the record is stale, whether a poll-publication ban (poll_blackout) applies now, and when the exit poll is expected (exit_poll).",
      "inputSchema": {
        "properties": {
          "election": {
            "description": "Election id, e.g. \"latvia-parliamentary-2026\"",
            "type": "string"
          }
        },
        "required": [
          "election"
        ],
        "type": "object"
      },
      "name": "election_status"
    },
    {
      "description": "The next elections in one country, however far ahead: polling day and whether it is declared, still tentative, or only expected within a period, what is elected, the counting authority, and when results are expected. Answers \"When is the next election in Austria?\" or \"When are the US midterms?\". National elections by default; level \"regional\" answers \"When are the next state elections in Germany?\". Covers 390 elections in 100 countries, 2021–2030, including 23 of the 27 EU member states, the 2026 US midterms in all 50 states and the certified 2024 US presidential result, with vote counts, in all 50 states and DC.",
      "inputSchema": {
        "properties": {
          "count": {
            "description": "How many upcoming elections to return, soonest first; default 3",
            "maximum": 10,
            "minimum": 1,
            "type": "integer"
          },
          "country": {
            "description": "Country name or ISO 3166-1 alpha-2 code, e.g. \"Austria\" or \"AT\", \"United States\" or \"US\"",
            "type": "string"
          },
          "level": {
            "description": "national: the country votes; regional: a state, region or autonomous community elects its own parliament or head (German Länder, Spanish autonomous communities, Italian regions). Default national; the answer also counts upcoming regional elections",
            "enum": [
              "national",
              "regional",
              "all"
            ],
            "type": "string"
          }
        },
        "required": [
          "country"
        ],
        "type": "object"
      },
      "name": "next_election"
    },
    {
      "description": "Whether a country bans publishing opinion polls before a vote, checked now: verdict ban / no-ban / exit-polls-only / unverified, when a ban starts and ends (polls close), whether it is in force, the law and article, and the official text it was read in. Answers \"Can I publish a poll in Spain this week?\" or \"When does the poll blackout end in Serbia?\". Give an election id, or a country for its next vote. \"unverified\" means we hold no verified rule: it is not a finding that polls are allowed. Not legal advice.",
      "inputSchema": {
        "properties": {
          "country": {
            "description": "Country name or ISO 3166-1 alpha-2 code, e.g. \"Austria\" or \"AT\", \"United States\" or \"US\"; answers for its next election",
            "type": "string"
          },
          "election": {
            "description": "Election id, e.g. \"spain-general-2026\"",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "poll_blackout"
    },
    {
      "description": "A pollster's final published poll before each election we hold a certified result for, set against that result: share per party or candidate, error in points, mean absolute error, and the error on the winner's margin. Figures come from the pollster's own release or a registry, never an aggregator. Measured facts, not grades: nothing is ranked. Answers \"How accurate was Novus in Sweden 2026?\". Give a pollster id or name.",
      "inputSchema": {
        "properties": {
          "pollster": {
            "description": "Pollster id or name, e.g. \"novus\" or \"Verian\"",
            "type": "string"
          }
        },
        "required": [
          "pollster"
        ],
        "type": "object"
      },
      "name": "pollster"
    },
    {
      "description": "Every known source URL for a race, classified (race_results, feed, results_index, emb_home, directory, media). Only race_results and feed can answer a results question; homepages never can. A results page whose HTML shows no count once one is due (figures_in_html false) is not resolvable. Sources a settlement oracle has answered from come first (oracle_reads). For our own copy of the count, see secondary_source in check_question.",
      "inputSchema": {
        "properties": {
          "election": {
            "description": "Election id, e.g. \"brazil-general-2026\"; list ids with upcoming_elections",
            "type": "string"
          },
          "race": {
            "description": "Race id, e.g. \"president\"; optional when the election has one race",
            "type": "string"
          },
          "resolvable_only": {
            "description": "Only sources that can answer a results question (race_results, feed); default false",
            "type": "boolean"
          }
        },
        "required": [
          "election"
        ],
        "type": "object"
      },
      "name": "resolution_sources"
    },
    {
      "description": "Report a mistake or a missing election, with a URL that proves it (ideally the official authority page). The report is public and is checked like any other claim; it never changes the data by itself. Returns the report id; follow it at https://electionindex.org/corrections.",
      "inputSchema": {
        "properties": {
          "claim": {
            "description": "What is wrong and what is right, 10 to 2000 characters",
            "type": "string"
          },
          "election": {
            "description": "Election id, if the report is about a listed election",
            "type": "string"
          },
          "evidence": {
            "description": "http(s) URL of the page that proves it",
            "type": "string"
          },
          "race": {
            "description": "Race id within that election, if the report is about one race",
            "type": "string"
          }
        },
        "required": [
          "claim",
          "evidence"
        ],
        "type": "object"
      },
      "name": "submit_correction"
    },
    {
      "description": "List elections by date range and/or country, soonest first, with each race's expected count stage right now. Answers \"Which elections are in Europe this autumn?\", \"Which elections are this month?\" or \"What elections does Germany have coming up?\". Without dates it starts today; with a country and no end date it covers every future election of that country, otherwise the next 365 days. Covers 390 elections in 100 countries, 2021–2030, including 23 of the 27 EU member states, the 2026 US midterms in all 50 states and the certified 2024 US presidential result, with vote counts, in all 50 states and DC.",
      "inputSchema": {
        "properties": {
          "country": {
            "description": "Country name or ISO 3166-1 alpha-2 code, e.g. \"Austria\" or \"AT\", \"United States\" or \"US\"",
            "type": "string"
          },
          "from": {
            "description": "Start date YYYY-MM-DD; default today",
            "type": "string"
          },
          "include_discovered": {
            "description": "Also list elections found on Wikidata but not yet verified by Global Election Index",
            "type": "boolean"
          },
          "level": {
            "description": "national: the country votes; regional: a state, region or autonomous community elects its own parliament or head (German Länder, Spanish autonomous communities, Italian regions). Default all",
            "enum": [
              "national",
              "regional",
              "all"
            ],
            "type": "string"
          },
          "limit": {
            "description": "Most elections to return, soonest first; default 25, max 200. Narrow with from/to or country for more.",
            "maximum": 200,
            "minimum": 1,
            "type": "integer"
          },
          "to": {
            "description": "End date YYYY-MM-DD; default +365 days, or no end when a country is given",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "upcoming_elections"
    },
    {
      "description": "When will a race's final (certified) result exist? Returns the expected window, its confidence (announced / precedent / estimate) and basis, how many days the final took last time, and the final count itself once we hold it. Use this before asking or settling any \"final result\" question.",
      "inputSchema": {
        "properties": {
          "election": {
            "description": "Election id, e.g. \"brazil-general-2026\"; list ids with upcoming_elections",
            "type": "string"
          },
          "race": {
            "description": "Race id, e.g. \"president\"; optional when the election has one race",
            "type": "string"
          }
        },
        "required": [
          "election"
        ],
        "type": "object"
      },
      "name": "when_final"
    }
  ]
}

What the leaf hashes

{"body":"835bf9f80b183e0674ffae5562fb45e658a59e857de4ffaf5f51813663400b41","id":305499,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793056485073837,"prev":null,"subject":"4284c902-b734-41da-9048-87ef07286358","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x2347fe64f15bebe12a4926e2c9081c5d7d95c6576733abf301e5faaed96d002f
2. 0xa09b52e180b948e2949b1c6880ccdae1cf976335edc54f8a6f028211af5d621a
3. 0x94131306e0ecafb0257645b3aecc0e3f21d65f12bde6266e642a0b4fe2e5a65e
4. 0x24450bca5b5a0eadf2e4e5dbee22c752f700d0936edf929c32201dfea112f4e8
5. 0x6bef9eb8e991a2b50ce1f7c24aece7d399e55f3e872fd29ed5fbbb53819c6dc9
6. 0xd2b07de98c40f931562d802fdfa5746fe8065e4f36ae213cbb7f06df5ba4bd82
7. 0x86387ec6171a9a2c2abf0a6a76e1e82a4be2a264fa3946bde6466fd4f3f45069
8. 0xe3cb1fbd465d9284de886ad12db6b6acb33199a8819496c05595d66f82232cc6
9. 0x95a012e04fe6931b3349a483b98f82b89cf45b77cf015644c81fa5420171b733
10. 0x704493bae418bde4fd104ba47dec27e1d8d9ddc2c72e86c9507cb5b9906a220b
11. 0xafd0058f5459c39aa93b8bea4d66dcde1a2763032ab59f971a1c12b8652db90b
12. 0xac5b705d705b0f1bc42cf2ad1a7f1f197ea96178ce0704432cbb5d556e8671a4
13. 0x9d75d4d3ab6219edefa04be60b32fdd56be7a7672f370a5115f02f7b098ecd27
14. 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae