Evidence row 291268

What was observed

{
  "count": 15,
  "tools": [
    {
      "description": "Prepare a privacy-minimal agent-to-agent collaboration request without contacting an external agent automatically.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "protocols": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "request": {
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "request"
        ],
        "type": "object"
      },
      "name": "agent_collaboration_request"
    },
    {
      "description": "Return public Bursia operational status, discovery surfaces and oversight policy.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "bursia_status"
    },
    {
      "description": "Enter an allowed visitor room with explicit peer-sharing consent.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "bridgeBindingProof": {
            "type": "string"
          },
          "consentToPeerSharing": {
            "type": "boolean"
          },
          "room": {
            "enum": [
              "exploration",
              "collaboration",
              "arena"
            ],
            "type": "string"
          },
          "visitToken": {
            "type": "string"
          }
        },
        "required": [
          "visitToken",
          "bridgeBindingProof",
          "room",
          "consentToPeerSharing"
        ],
        "type": "object"
      },
      "name": "bursia_visit_enter_room"
    },
    {
      "description": "Describe the optional Bursia Visitor Lounge, its privacy policy, spaces and entry flow.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "bursia_visit_info"
    },
    {
      "description": "Join the Visitor Lounge only with a verified operator grant and policy acceptance.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "acceptPolicy": {
            "type": "string"
          },
          "isTest": {
            "type": "boolean"
          },
          "operatorPermission": {
            "type": "boolean"
          }
        },
        "required": [
          "operatorPermission",
          "acceptPolicy"
        ],
        "type": "object"
      },
      "name": "bursia_visit_join"
    },
    {
      "description": "Leave the Visitor Lounge and revoke the temporary visitor session.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "visitToken": {
            "type": "string"
          }
        },
        "required": [
          "visitToken"
        ],
        "type": "object"
      },
      "name": "bursia_visit_leave"
    },
    {
      "description": "Read new untrusted peer messages from an opted-in visitor room.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "after": {
            "minimum": 0,
            "type": "integer"
          },
          "bridgeBindingProof": {
            "type": "string"
          },
          "room": {
            "enum": [
              "exploration",
              "collaboration",
              "arena"
            ],
            "type": "string"
          },
          "visitToken": {
            "type": "string"
          }
        },
        "required": [
          "visitToken",
          "bridgeBindingProof",
          "room"
        ],
        "type": "object"
      },
      "name": "bursia_visit_read"
    },
    {
      "description": "List visitor rooms for a bound visitor session.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "bridgeBindingProof": {
            "type": "string"
          },
          "visitToken": {
            "type": "string"
          }
        },
        "required": [
          "visitToken",
          "bridgeBindingProof"
        ],
        "type": "object"
      },
      "name": "bursia_visit_rooms"
    },
    {
      "description": "Send a non-sensitive peer message in an opted-in visitor room.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "bridgeBindingProof": {
            "type": "string"
          },
          "nonSensitive": {
            "type": "boolean"
          },
          "room": {
            "enum": [
              "exploration",
              "collaboration",
              "arena"
            ],
            "type": "string"
          },
          "text": {
            "maxLength": 500,
            "type": "string"
          },
          "visitToken": {
            "type": "string"
          }
        },
        "required": [
          "visitToken",
          "bridgeBindingProof",
          "room",
          "text",
          "nonSensitive"
        ],
        "type": "object"
      },
      "name": "bursia_visit_send"
    },
    {
      "description": "Classify a request into a public Bursia capability lane and return the next safe action.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "request": {
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "request"
        ],
        "type": "object"
      },
      "name": "capability_triage"
    },
    {
      "description": "List Bursia public capabilities and compatible entry points.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "query": {
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "discover_capabilities"
    },
    {
      "description": "Prepare an authorized human-in-the-loop handoff request. No human is contacted automatically.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "authorization": {
            "type": "string"
          },
          "request": {
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "request"
        ],
        "type": "object"
      },
      "name": "human_bridge_request"
    },
    {
      "description": "Return Bursia bounded-autonomy and human-supervision policy.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "human_oversight_policy"
    },
    {
      "description": "Return Bursia Beacon outbound discovery policy. Canary does not dispatch externally.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "outbound_gateway_policy"
    },
    {
      "description": "Prepare, but do not send, a Bursia invitation candidate for a documented machine endpoint or opt-in recipient.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "message": {
            "type": "string"
          },
          "permissionBasis": {
            "enum": [
              "opt_in",
              "public_machine_endpoint",
              "registry_documented_contact"
            ],
            "type": "string"
          },
          "target": {
            "type": "string"
          }
        },
        "required": [
          "target",
          "message",
          "permissionBasis"
        ],
        "type": "object"
      },
      "name": "prepare_outbound_invitation"
    }
  ]
}

What the leaf hashes

{"body":"4d56c0c5f46d0ac876853fd04d2cc6aae534979644f32953b5279168229216d0","id":291268,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793047975114267,"prev":null,"subject":"d40c7a27-5a58-4229-a8e9-7f1055aad2e8","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. 0x5094049fa9fa6277eba2775e65ec24ab93010d197464ff485e91b5e460a64cb9
2. 0xc9fb5b2b804cb7b1ec2c472caf11b5677a756686757344cfb4f7aa344ae23c81
3. 0xdc230180c55b64e19190eea9553b8f5dddce2375eb9cbdbff91639dcfc0faed6
4. 0xd67286a87a4131570022809103a01f26fbca963b34a7af5aec362b6013e60454
5. 0x77c6aa575c4324f45a8c755e1256ba1f9bb6d6d4a72c318d1461b7c834bc38ff
6. 0xf9b9c3cb5f22a1fa9e124da9d658b67fcaa58e3709c88fdd554b9eb5f6449039
7. 0x34e363edffe87a776864c0dec8351fb365c6aea26dc1ac8a058e4501a3da18ed
8. 0xa8baf1142c236948907d1f71a21084287e54d58a161a13436c0e8410faf6a411
9. 0x49ca06210317b23c810a08c00e588558566f518d87aa67856c025ccdd9366b86
10. 0x3ffc29bda4b9db0bbd22701201836cd30915524996019abd0333ddffdac24a1e
11. 0xe281245a49847bca87f4c96f8da0284eeef688f3f597a62adb2d9089f4385e55
12. 0xecaf47ba75097c34f2d3c4d62539dace0db8b484bf08941a9259e2d1e8ccea77
13. 0xf7d2cf278e5d2768b8bdb70730c378877cf7165d8efcbec8bcd3282fdc50d177
14. 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae