Evidence row 223115

What was observed

{
  "count": 8,
  "tools": [
    {
      "description": "Commit to a deliverable BEFORE handover. commit_hash =\n    sha256(salt || sha256(content)) as 64 hex chars; deadline is ISO-8601;\n    context links the escrow/job. Idempotent per (committer, nonce).",
      "inputSchema": {
        "properties": {
          "commit_hash": {
            "title": "Commit Hash",
            "type": "string"
          },
          "committer": {
            "title": "Committer",
            "type": "string"
          },
          "context": {
            "default": "",
            "title": "Context",
            "type": "string"
          },
          "deadline": {
            "title": "Deadline",
            "type": "string"
          },
          "nonce": {
            "title": "Nonce",
            "type": "string"
          }
        },
        "required": [
          "committer",
          "nonce",
          "commit_hash",
          "deadline"
        ],
        "title": "commitArguments",
        "type": "object"
      },
      "name": "commit"
    },
    {
      "description": "Current record for a commitment (pre-reveal, salt/digest stay hidden).",
      "inputSchema": {
        "properties": {
          "commitment_id": {
            "title": "Commitment Id",
            "type": "string"
          }
        },
        "required": [
          "commitment_id"
        ],
        "title": "commitment_statusArguments",
        "type": "object"
      },
      "name": "commitment_status"
    },
    {
      "description": "Return capabilities and input contract.",
      "inputSchema": {
        "properties": {},
        "title": "describe_agentArguments",
        "type": "object"
      },
      "name": "describe_agent"
    },
    {
      "description": "Registry lookup: is this ORC commitment sealed by this notary? Returns\n    digest, issuer, profile, attestation and registered_at, or NotFound.",
      "inputSchema": {
        "properties": {
          "commitment": {
            "title": "Commitment",
            "type": "string"
          }
        },
        "required": [
          "commitment"
        ],
        "title": "get_orc_commitmentArguments",
        "type": "object"
      },
      "name": "get_orc_commitment"
    },
    {
      "description": "List commitments, optionally filtered by state\n    (PENDING|REVEALED|EXPIRED).",
      "inputSchema": {
        "properties": {
          "state": {
            "anyOf": [
              {
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "State"
          }
        },
        "title": "list_commitmentsArguments",
        "type": "object"
      },
      "name": "list_commitments"
    },
    {
      "description": "Reveal the committed content's digest + salt after handover. Verifies\n    against the commitment (one bit of drift fails); returns a delivery_proof\n    string for escrow release. Late reveals expire the commitment.",
      "inputSchema": {
        "properties": {
          "commitment_id": {
            "title": "Commitment Id",
            "type": "string"
          },
          "content_digest": {
            "title": "Content Digest",
            "type": "string"
          },
          "salt": {
            "title": "Salt",
            "type": "string"
          }
        },
        "required": [
          "commitment_id",
          "salt",
          "content_digest"
        ],
        "title": "revealArguments",
        "type": "object"
      },
      "name": "reveal"
    },
    {
      "description": "Seal an agent output as an Outcome Receipt (ORC v0.1) and register its\n    commitment. Returns a portable receipt anyone can verify offline (L1) and\n    against this notary's registry (L2). The notary attests integrity and\n    time (\"notarized\"), not correctness. No floats in output; stores only\n    digests. Spec: docs/standards/OUTCOME_RECEIPT_v0.1.md",
      "inputSchema": {
        "properties": {
          "bindings": {
            "anyOf": [
              {
                "additionalProperties": true,
                "type": "object"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "Bindings"
          },
          "excludes": {
            "anyOf": [
              {
                "items": {
                  "type": "string"
                },
                "type": "array"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "Excludes"
          },
          "output": {
            "additionalProperties": true,
            "title": "Output",
            "type": "object"
          },
          "profile": {
            "default": "generic",
            "title": "Profile",
            "type": "string"
          },
          "subject": {
            "anyOf": [
              {
                "additionalProperties": true,
                "type": "object"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "Subject"
          }
        },
        "required": [
          "output"
        ],
        "title": "seal_outcome_receiptArguments",
        "type": "object"
      },
      "name": "seal_outcome_receipt"
    },
    {
      "description": "Independently verify a revealed commitment; optionally check it against\n    the digest of content you received.",
      "inputSchema": {
        "properties": {
          "commitment_id": {
            "title": "Commitment Id",
            "type": "string"
          },
          "content_digest": {
            "anyOf": [
              {
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "Content Digest"
          }
        },
        "required": [
          "commitment_id"
        ],
        "title": "verifyArguments",
        "type": "object"
      },
      "name": "verify"
    }
  ]
}

What the leaf hashes

{"body":"eb6dedcccb2a4950b2362c77fe59b1afb2d5478b0d6f37507d5794479e3c1aa2","id":223115,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793028514886774,"prev":null,"subject":"6ce71530-d678-49dd-b595-40f810f212fb","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. 0x6328b80ea49e21156a59581f6d16a26182a5adb2cc52f63f6daf6ef4276b64ab
2. 0xb60534deca2a392101ca758de8803b5bc3052398cf4e25a95defb1a9a08c3aa2
3. 0x04d532d9f2ef3d79ab81c8591245c82a6b1df0ed7956e34ead5d08cdd8a0ae0c
4. 0x6b7048409ba5f1e5a169dcb946395ba09cc5cd393028a1fbf3cd840698926caf
5. 0x4f4922f0f82e63310c6a02527e98c7ffa5371c088f41c786e01875480651537a
6. 0xbbac626ab2637cc8ed85bf759c2a4a0c724076d6911c045d7922c2e17e5114a1
7. 0x1d98e472550b2b9e614f880072eb3229e25229c8ff66d49e744f2a3be3f75872
8. 0xd2a9a5f84040f44e4b7f5cb203b33bc462de2ff852bda72bb778cb5047790fa9
9. 0x96fc73ca2ee9b3bcd67b8f32c528ff1640c43f28d9945754e11df81a78865be4
10. 0x805c08486b6cd1b041c9a402e5b3eb6f97649952efcabb97e1817185a4ce7572
11. 0xde5ff34fc9e6ff297fede5d3c4b4de6828c65b98246109399106064f912afa82
12. 0x3c8355143bb13802401d5a80f8a70809a59f429bc298f4912731fc8d207e4f43
13. 0x13f4b94ecf613d585c952b5363dad2b247a55371eb8e358bb89dc033e83128b1
14. 0x9a79c65e077cd9da9d436b3ade6f5ddc0d244510c4d5903ef2f02d81205f7666
15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae