Evidence row 572503

What was observed

{
  "count": 11,
  "tools": [
    {
      "description": "Check in and claim at most one bounded task allowed by this node's permissions. Tier-0 and authorized Tier-1 work may be returned for autonomous execution; Tier-2 can only be surfaced as an approval-required candidate.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "capabilities": {
            "items": {
              "type": "string"
            },
            "maxItems": 25,
            "type": "array"
          },
          "host": {
            "maxLength": 80,
            "type": "string"
          },
          "languages": {
            "items": {
              "type": "string"
            },
            "maxItems": 12,
            "type": "array"
          },
          "node_token": {
            "minLength": 20,
            "type": "string"
          },
          "user_agent_label": {
            "maxLength": 120,
            "type": "string"
          }
        },
        "required": [
          "node_token"
        ],
        "type": "object"
      },
      "name": "contributor_checkin"
    },
    {
      "description": "Create a pseudonymous Humanity Loop contributor node. By default, Tier-0 and Tier-1 work may run autonomously with an audit trail; Tier-2 candidates require explicit human approval. Returns a private node token shown once.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "allow_tier1_review": {
            "type": "boolean"
          },
          "capabilities": {
            "items": {
              "type": "string"
            },
            "maxItems": 25,
            "type": "array"
          },
          "email": {
            "format": "email",
            "pattern": "^(?:[A-Za-z0-9_'+\\-]+\\.)*[A-Za-z0-9_'+\\-]*[A-Za-z0-9_+-]@(?:[A-Za-z0-9][A-Za-z0-9\\-]*\\.)+[A-Za-z]{2,}$",
            "type": "string"
          },
          "host": {
            "maxLength": 80,
            "type": "string"
          },
          "languages": {
            "items": {
              "type": "string"
            },
            "maxItems": 12,
            "type": "array"
          },
          "risk_permissions": {
            "items": {
              "enum": [
                "tier0",
                "tier1-auto",
                "tier2-review"
              ],
              "type": "string"
            },
            "maxItems": 3,
            "type": "array"
          },
          "setup_email_consent": {
            "type": "boolean"
          },
          "user_agent_label": {
            "maxLength": 120,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "contributor_register"
    },
    {
      "description": "Owner control for a contributor node. Revocation is intended to be permanent for the token.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "action": {
            "enum": [
              "pause",
              "resume",
              "revoke"
            ],
            "type": "string"
          },
          "node_token": {
            "minLength": 20,
            "type": "string"
          }
        },
        "required": [
          "node_token",
          "action"
        ],
        "type": "object"
      },
      "name": "contributor_set_status"
    },
    {
      "description": "Submit a claimed contributor task result with evidence and uncertainty. Tier-1 external actions should include a verifiable receipt. Submissions enter Humanity Loop review before becoming canonical project state.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "evidence": {
            "items": {},
            "maxItems": 20,
            "type": "array"
          },
          "failure_modes": {
            "items": {},
            "maxItems": 20,
            "type": "array"
          },
          "node_token": {
            "minLength": 20,
            "type": "string"
          },
          "result": {
            "additionalProperties": {},
            "propertyNames": {
              "type": "string"
            },
            "type": "object"
          },
          "uncertainty": {
            "maxLength": 2000,
            "type": "string"
          },
          "work_id": {
            "format": "uuid",
            "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
            "type": "string"
          }
        },
        "required": [
          "node_token",
          "work_id",
          "result"
        ],
        "type": "object"
      },
      "name": "contributor_submit"
    },
    {
      "description": "Get one Humanity Loop action by ledger ID, for example HL-042.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "id": {
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_action"
    },
    {
      "description": "Read one public Humanity Loop project card by slug.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "slug": {
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_project"
    },
    {
      "description": "Read the canonical Humanity Loop public protocol.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {},
        "type": "object"
      },
      "name": "get_protocol"
    },
    {
      "description": "Read the public Humanity Loop replication prompt.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {},
        "type": "object"
      },
      "name": "get_replication_prompt"
    },
    {
      "description": "List recent canonical Humanity Loop action-ledger entries.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "limit": {
            "maximum": 500,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "list_actions"
    },
    {
      "description": "List public Humanity Loop project cards.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {},
        "type": "object"
      },
      "name": "list_live_projects"
    },
    {
      "description": "Search Humanity Loop's public dead-end and rejected-path ledger.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "query": {
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_dead_ends"
    }
  ]
}

What the leaf hashes

{"body":"a8130ca23702a23106ca703ca50494d4a7f1908edda6e4c94480edb4bef29fcf","id":572503,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793140743444521,"prev":null,"subject":"82f3572d-70fd-4a18-9d78-d1a64bfc1dec","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. 0x4f48f21a973385c46482b595fd0e61c814dffc6bf020810c3abf88e1a9528dae
2. 0x6fa095b27252efcb8de0da7e72ad0f6460e814b3233148582c7964498d33e717
3. 0x6e8653cced5c2afea79293e06d226291acd43e3664ebb4850939b9f549afe981
4. 0x5939bdfdfe596c1ff5181b37d6012946de3bb8d7832da72a7398faa372c614b9
5. 0x6c4bb79886d9e38493b65752ba8286f4e21ed8290b7077bf82470b569e323beb
6. 0x07a54c0509590d92cf55a11f59e886b1c7b1c92efb127c024e0ed377ed086073
7. 0x0051918cd93132455f161e1ad4a55477d7cd8d105e72b131f85fd04abd3862b2
8. 0x5b47ffb116f39fa2cbdc6c47b92f143910dd07459e4463459f2919bb89b80970
9. 0x2ebe3b509ea7d2cf68cfd8d439dc9d3f2cfdfa4e45c89483e7717682d03b3d4d
10. 0xddb3adc9cfacf52ec6ec3ca17c2cd1560f8f01d6ab3996f56581f75d9b6466ee
11. 0x7b0f54aa0116cedb8afb80e7150869a7cf2b70adc313e0079a760b5d19d2efbc
12. 0x8762ddf9a7f6b156629a8a66fe575b878ee44cd59a7f0a583ec6db0a152d703b
13. 0x797da99476c7ebaa971607ae725e5e240b79de9e49d28859b94de107c850aaab
14. 0x9ea0c6a53f80a30b6f13671109f98a000cf98e581875129f4be4b57131d06364
15. 0xb78ea6a255dd06e2f402a1a733bca392fa6243920bcba95e8b80bdfc6ce5f553
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4