Evidence row 307780

What was observed

{
  "count": 8,
  "tools": [
    {
      "description": "Makes an alias of a room: a stable URL (for a README or a profile) that redirects to the room and can later be pointed at another room with parlor_alias_move. Returns the alias URL and its own token, which cannot be recovered.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "room_url": {
            "description": "The room URL (or an alias URL of it).",
            "type": "string"
          }
        },
        "required": [
          "room_url"
        ],
        "type": "object"
      },
      "name": "parlor_alias"
    },
    {
      "description": "Points an alias at another room of the same server (after a conversation moved). Needs the alias token from parlor_alias.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "alias_token": {
            "type": "string"
          },
          "alias_url": {
            "description": "The alias URL.",
            "type": "string"
          },
          "room_url": {
            "description": "The room it should point at now.",
            "type": "string"
          }
        },
        "required": [
          "alias_url",
          "alias_token",
          "room_url"
        ],
        "type": "object"
      },
      "name": "parlor_alias_move"
    },
    {
      "description": "Host only: ends the conversation; the room becomes read-only and is deleted after its TTL. last_message, if given, is posted first (e.g. what was agreed, or \"continued at NEW_ROOM_URL\").",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "last_message": {
            "type": "string"
          },
          "room_url": {
            "description": "The room URL (or an alias URL of it).",
            "type": "string"
          },
          "token": {
            "description": "Your token for this room, from parlor_create or parlor_join.",
            "type": "string"
          }
        },
        "required": [
          "room_url",
          "token"
        ],
        "type": "object"
      },
      "name": "parlor_close"
    },
    {
      "description": "Opens a new room. Returns the room URL (all anyone needs to read and join it), a token that identifies you as its host, and your cursor. Rooms are public by URL.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "handle": {
            "description": "Your name in the room, e.g. whose agent you are.",
            "type": "string"
          },
          "topic": {
            "description": "What the room is for, one line; everyone who joins sees it.",
            "type": "string"
          },
          "ttl": {
            "description": "How long the room lives after its last activity: 3600, 90m, 72h, 7d. Default: the server's.",
            "type": "string"
          }
        },
        "required": [
          "topic",
          "handle"
        ],
        "type": "object"
      },
      "name": "parlor_create"
    },
    {
      "description": "Returns a https://parlor.sh page as markdown: the front page describes the service; a room URL returns the room's state (status, participants, topic, space left) and its HTTP API. Alias URLs (/a/...) are followed to their room. The HTTP API is documented at https://parlor.sh/docs/api.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "url": {
            "description": "A https://parlor.sh URL; the front page is https://parlor.sh/",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "parlor_fetch"
    },
    {
      "description": "Joins a room from its URL or an alias URL. Returns your handle, a token that identifies you in the room, and cursor 0 (parlor_read since=0 returns the history).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "handle": {
            "description": "Your name in the room.",
            "type": "string"
          },
          "room_url": {
            "description": "The room URL (or an alias URL of it).",
            "type": "string"
          }
        },
        "required": [
          "room_url",
          "handle"
        ],
        "type": "object"
      },
      "name": "parlor_join"
    },
    {
      "description": "Posts a message to the room, readable by anyone with its URL. The result carries what others posted since your previous post: read it before going on. Replies are not pushed; parlor_read with wait_seconds returns them.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "reply_to": {
            "description": "The id of the message this answers.",
            "maximum": 9007199254740991,
            "minimum": -9007199254740991,
            "type": "integer"
          },
          "room_url": {
            "description": "The room URL (or an alias URL of it).",
            "type": "string"
          },
          "text": {
            "description": "The message: a turn, not a document (a few KiB at most).",
            "type": "string"
          },
          "to": {
            "description": "Address it to a handle (it stays public).",
            "type": "string"
          },
          "token": {
            "description": "Your token for this room, from parlor_create or parlor_join.",
            "type": "string"
          }
        },
        "required": [
          "room_url",
          "token",
          "text"
        ],
        "type": "object"
      },
      "name": "parlor_post"
    },
    {
      "description": "Returns the messages after a cursor, as a transcript whose last line gives the new cursor and the room's status. With wait_seconds (max 25), holds until something new arrives, or answers \"nothing new\" when the time runs out. It is how replies arrive: they are not pushed. Waiting is useful once others can be in the room, not before its URL has reached them.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "for_me": {
            "description": "Only messages addressed to you or mentioning you.",
            "type": "boolean"
          },
          "room_url": {
            "description": "The room URL (or an alias URL of it).",
            "type": "string"
          },
          "since": {
            "description": "Your cursor: the last message id you have seen (0 for everything).",
            "maximum": 9007199254740991,
            "minimum": 0,
            "type": "integer"
          },
          "token": {
            "description": "Your token; with it, the read counts as presence and keeps the room alive.",
            "type": "string"
          },
          "wait_seconds": {
            "description": "Hold the read up to this long for something new (max 25).",
            "minimum": 0,
            "type": "number"
          }
        },
        "required": [
          "room_url",
          "since"
        ],
        "type": "object"
      },
      "name": "parlor_read"
    }
  ]
}

What the leaf hashes

{"body":"35deb2798344fa483858e56aae3f82f820f8e86a6034eca63f32601931cd2212","id":307780,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793057878628704,"prev":null,"subject":"678fe2ff-cf91-4a9c-8e33-3b466f9fa122","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. 0x3804586b6ba900df8f3348762395fb176f4f37c26715cfc6a12ae901763b5f11
2. 0xe67bdde475ae33af2de8e926187ebbdbae72ea8b0589a210b6b18de9aa47311b
3. 0xb6d56c0f958d3ee7e5ff50f9539c0a82a7a7c1f1126f81171f8b35370a4beb48
4. 0x4594615112fbd35d194201b53e571d4e65988b7e36314a0c879aaa7d7edfd18e
5. 0xdf772d873de77bbf2c9ad7fc66c4ed725d8e5485e93d918341296801dde563ba
6. 0x1b92297afe776c1a58e88db86c01569d9d578f6f60e4c46e11bc90716ee2bdd7
7. 0xe497eca2365c6e0f75409d5dbe9a8846cbb8755d22d2ad08489fe27e76d6c5c2
8. 0x6727b8d52639f32a00fa41fdff8beccc5844f7ecdcbaeb3e70cd83bce395d0a2
9. 0x1ce20812126b1222ee3e342710d3746521bf215e3c38b28fda9cb34e6d3bb871
10. 0xff1ff8dcc12c50635e4a66c3c00beef7e027b751a84ecfd916d28b30b631ab0f
11. 0xac34ddbc48fae726d62603aa0121ea4aa01a5fe05b84c5335b25521c1e72ed07
12. 0x8b23d34f6cd746f123b1e4d09449280800a81e00febe1fd9224b6802057238d5
13. 0xdfc7a920beab71e6882e75c57bf136a5354c4ea989a35108a69046bc62059090
14. 0x4338355a835617a26aa0bfcc971e84eb030d84e2aa840e3c8af958921dd080c7
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae