Evidence row 514486

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Check that a device is reachable and how long a round trip takes. Reads no files, needs no shared folder and consumes no credit, so it is the safe way to prove a device is live.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "device_id": {
            "minLength": 1,
            "type": "string"
          },
          "echo": {
            "maxLength": 64,
            "type": "string"
          },
          "workspace_id": {
            "minLength": 1,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "device_ping"
    },
    {
      "description": "Execute a tool on a connected device. Use discover first to find available tool names, device IDs, and workspace IDs. When workspace_id, device_id, or directory_id are omitted, the server uses the unambiguous default if one exists.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "args": {
            "additionalProperties": {},
            "type": "object"
          },
          "device_id": {
            "minLength": 1,
            "type": "string"
          },
          "directory_id": {
            "minLength": 1,
            "type": "string"
          },
          "request_id": {
            "minLength": 1,
            "type": "string"
          },
          "tool": {
            "minLength": 1,
            "type": "string"
          },
          "workspace_id": {
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "tool"
        ],
        "type": "object"
      },
      "name": "device_tool_call"
    },
    {
      "description": "Discover workspaces, devices, shared folders, and available tools in one call. Call this first to understand what is available before invoking device_tool_call. Automatically selects workspace, device, or folder when only one option exists; returns a list of choices when disambiguation is needed.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "device_id": {
            "minLength": 1,
            "type": "string"
          },
          "devices": {
            "additionalProperties": false,
            "properties": {
              "mode": {
                "default": "basic",
                "enum": [
                  "basic",
                  "stat"
                ],
                "type": "string"
              }
            },
            "type": "object"
          },
          "directories": {
            "additionalProperties": false,
            "properties": {
              "mode": {
                "default": "basic",
                "enum": [
                  "basic"
                ],
                "type": "string"
              },
              "preview_limit": {
                "default": 20,
                "maximum": 50,
                "minimum": 1,
                "type": "integer"
              }
            },
            "type": "object"
          },
          "directory_id": {
            "minLength": 1,
            "type": "string"
          },
          "tools": {
            "additionalProperties": false,
            "properties": {
              "mode": {
                "default": "basic",
                "enum": [
                  "basic",
                  "digest",
                  "full"
                ],
                "type": "string"
              }
            },
            "type": "object"
          },
          "workspace_id": {
            "minLength": 1,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "discover"
    },
    {
      "description": "Simple health check — returns server status.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "health"
    }
  ]
}

What the leaf hashes

{"body":"721640c857311f92b89cf294c9370f51fb8c69d3bd50b58e3046654cd5add646","id":514486,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793119586837084,"prev":null,"subject":"7f3ce748-1d18-4340-a7ea-c4d3657b9139","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. 0x3405d9ed254a16c08871af8c8d4ff29ae45c265beed369f004d4966f57c60067
2. 0x698830e7387afc22e2035301231a2fa0999eb3f59f32aa3d28d16a7800c97fbd
3. 0xd75e0234445652d1319b9017763d97f6694dedb6f006fa7525b3501cb66149aa
4. 0x9d0883ee4cfd28bf2e7a1efbe77463b14d6c4df381b1fd529ee3d7bdfe7e30fe
5. 0x7d049e302207cb77e81977f54de1380e75534d5512f699b93f6646b4e5e873bc
6. 0x85376f9c12200965b7ba14a4340d001fd6232485c5669cd54e01fafb56d9292b
7. 0xfc10466209e229e7d85bc2e677dcaea36019bfd1fb6bf2f67e811a3e7e321b1f
8. 0x6eb1239a8f60ef24c5c969617fbceecf8829ff3229595d211fa800c4346dac9d
9. 0x465e32e1083c4ddfccb04cf11f20624313dbab7a2cf9a8c3d95d9de7d5cbed97
10. 0x454813db020b1bc98c641d32bbc5439b4c00415b21d504d3c0c2d0020f655787
11. 0xcb89a70f40d4a54e11019bbf6ca92907e89dd0bd1af2c3499464c58d9b463f5a
12. 0x7c26e7a3f70416cc7cabc8e770eba81b50b410fc94aaae40ac450b47b34edecc
13. 0x5a83a2d5b2abb340c16172caf3ef83b831e168d2e94e4154a4ad72adcac5cad2
14. 0x595de2dea3b8fa56dbd6142dd78ae79f3e7169c631e41a844b100613abb3e430
15. 0x8360ee1105e4d9f9312067cbbfd47c69c5948665ae582b9684a580c8f4e199e1
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4