Evidence row 303436

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Use this when the user asks what Upfit is, how it works, or what it cannot check. Returns a short description and links to Upfit's own explanation pages.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "about_upfit"
    },
    {
      "description": "Use this when the user wants a bodyweight, no-equipment home workout session. Builds a 15-move session the way the Upfit iPhone app builds one: 2 warm-ups, 10 main moves balanced around the chosen level, then 3 harder finishers. Returns each move's name, phase, set length and rest. Read-only; collects no personal data and needs no body measurements. The same seed returns the same session.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "level": {
            "description": "Training experience: beginner, intermediate or advanced.",
            "enum": [
              "beginner",
              "intermediate",
              "advanced"
            ],
            "type": "string"
          },
          "seed": {
            "anyOf": [
              {
                "maxLength": 64,
                "type": "string"
              },
              {
                "type": "number"
              }
            ],
            "description": "Optional. Any word or number; the same seed rebuilds the same session. Leave out for a fresh random one."
          }
        },
        "required": [
          "level"
        ],
        "type": "object"
      },
      "name": "build_home_workout"
    },
    {
      "description": "Use this when the user asks what Upfit's coach says or checks for a specific bodyweight exercise (for example 'squat' or 'low plank hold'). Returns the app's real spoken coach lines for that exercise and, for exercises that have an Upfit page, what the camera checks and does not check. If the exercise is unknown it says so and lists close matches. It never invents form advice.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "exercise": {
            "description": "Exercise name, such as 'squat', 'jumping jacks' or 'low plank hold'.",
            "maxLength": 80,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "exercise"
        ],
        "type": "object"
      },
      "name": "get_exercise_form_cues"
    },
    {
      "description": "Use this when the user wants to see which bodyweight exercises Upfit can run. Returns the enabled exercises with Upfit's own difficulty rating (1 easiest to 9 hardest) and, where Upfit documents it, how you stand to the phone (facing it, side-on to it, or on the floor). Optional difficulty filters.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "max_difficulty": {
            "description": "Only exercises at or below this difficulty.",
            "maximum": 9,
            "minimum": 1,
            "type": "integer"
          },
          "min_difficulty": {
            "description": "Only exercises at or above this difficulty.",
            "maximum": 9,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "list_exercises"
    }
  ]
}

What the leaf hashes

{"body":"833e9b2fba660df5066cc6a03b67b609be92e3210dba79aa5499e8df3cdef120","id":303436,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793055345305178,"prev":null,"subject":"0ed5cf00-8b93-4529-9ed2-3891136c3cd9","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. 0x0a87d0ea575dc99105e50f51750a82e312148a16257df4e41df4dd94055fa3be
2. 0xaa454c9c3839c770279dda8ab59385e10d7a092c312be0299a3f40480907ffb9
3. 0x80e4a73ed90dc898a874d2eb9205fff590ae9482ac0ee41cf4368d59aa4852cb
4. 0x32a4bc107d54b83e845ba7c12030c8126fe55541db6c4840252c8048086eaf8b
5. 0x58123e6fcb0cea668b6a283f133b95d91c4d95752e0233155de3061c4fae389d
6. 0x2a331bc7c484f697be15d1e114aaf90ae5cb870068f06102c9cf984911a9836c
7. 0xf10148338edd7d0059bd16176a980479f35065ca0e5d00b9c5c56bc6aacf4e45
8. 0x79e51e197d71364e9d55ac63ff8412f28dfed5246a1a75c8e185ccf7692256ff
9. 0x430ddf5dc6f0bf48702b9bb155fb1f09c76a6353903235c3b35878aac3c0c298
10. 0x3526fc43e1700b5c470f59503113376c32080a3a5d8962c998cb16807f4058a9
11. 0x87b542db74671bce07a9c7ffa1bac70164f2e2ab234b807975c3d56a1d6139ee
12. 0x9e12233d6ee4faeb9271b0fc3c834797517d702f44add023149f28a0809c0aaa
13. 0xe5a836cf25a8dfc72c9e3b6a69a7561a1f61f50f9cf36707d36f6e926aa15dec
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae