Evidence row 562462

What was observed

{
  "count": 7,
  "tools": [
    {
      "description": "Analyze a whole CAN trace of a UDS diagnostic or flash session and say what went wrong. Accepts candump logs, Vector ASC, PEAK TRC (1.x/2.x), SavvyCAN or python-can CSV pasted as text, and those plus Vector BLF, Wireshark pcap/pcapng (SocketCAN) and ASAM MF4 bus logging uploaded as a file. Reassembles ISO-TP, pairs requests with responses (including 0x78 responsePending), measures P2/P2*, follows sessions and security access, reconstructs RequestDownload/TransferData into an image with CRC32, extracts identification DIDs, and returns a root-cause finding with the frames that show it. Shows an interactive timeline.",
      "inputSchema": {
        "properties": {
          "file": {
            "description": "An uploaded trace file: text formats above, or binary BLF, pcap, pcapng, MF4.",
            "properties": {
              "download_url": {
                "type": "string"
              },
              "file_id": {
                "type": "string"
              },
              "file_name": {
                "type": "string"
              },
              "mime_type": {
                "type": "string"
              }
            },
            "required": [
              "download_url",
              "file_id"
            ],
            "type": "object"
          },
          "format": {
            "description": "Default auto-detect.",
            "enum": [
              "auto",
              "candump",
              "asc",
              "trc",
              "csv"
            ],
            "type": "string"
          },
          "trace": {
            "description": "Trace text (candump, ASC, TRC or CSV). Use this or file.",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "analyze_trace"
    },
    {
      "description": "Build a UDS request as hex with an annotated breakdown. Services: session, ecu_reset, read_did, write_did, security_seed, security_key, tester_present, routine, request_download, transfer_data, transfer_exit, clear_dtc, read_dtc, control_dtc, comm_control, raw. Numeric strings are hex.",
      "inputSchema": {
        "properties": {
          "action": {
            "enum": [
              "start",
              "stop",
              "results"
            ],
            "type": "string"
          },
          "address": {
            "description": "request_download: e.g. \"0x08000000\".",
            "type": "string"
          },
          "addressBytes": {
            "description": "Default 4.",
            "type": "integer"
          },
          "commType": {
            "description": "comm_control communicationType, default 01."
          },
          "control": {
            "description": "comm_control control type."
          },
          "counter": {
            "description": "transfer_data block sequence counter.",
            "type": "integer"
          },
          "data": {
            "description": "Hex payload (write_did, transfer_data, routine option record).",
            "type": "string"
          },
          "dfi": {
            "description": "dataFormatIdentifier, default 0.",
            "type": "integer"
          },
          "did": {
            "type": "string"
          },
          "dids": {
            "description": "read_did: e.g. [\"F190\",\"F18C\"].",
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "group": {
            "description": "clear_dtc group, default FFFFFF.",
            "type": "string"
          },
          "hex": {
            "description": "raw: bytes to pass through.",
            "type": "string"
          },
          "key": {
            "description": "security_key: key bytes in hex.",
            "type": "string"
          },
          "level": {
            "description": "security_seed/security_key: odd seed-request level; the key is sent with level+1.",
            "type": "integer"
          },
          "mask": {
            "description": "read_dtc status mask, default FF."
          },
          "on": {
            "description": "control_dtc: true = DTC setting on.",
            "type": "boolean"
          },
          "rid": {
            "description": "routine: e.g. \"FF00\".",
            "type": "string"
          },
          "service": {
            "enum": [
              "session",
              "ecu_reset",
              "read_did",
              "write_did",
              "security_seed",
              "security_key",
              "tester_present",
              "routine",
              "request_download",
              "transfer_data",
              "transfer_exit",
              "clear_dtc",
              "read_dtc",
              "control_dtc",
              "comm_control",
              "raw"
            ],
            "type": "string"
          },
          "size": {
            "description": "request_download: e.g. \"0x10000\".",
            "type": "string"
          },
          "sizeBytes": {
            "description": "Default 4.",
            "type": "integer"
          },
          "subfunction": {
            "description": "read_dtc sub-function (e.g. 2 = reportDTCByStatusMask)."
          },
          "suppress": {
            "description": "tester_present: set suppressPosRspMsgIndicationBit.",
            "type": "boolean"
          },
          "type": {
            "description": "session/ecu_reset sub-function (number, hex string or name)."
          }
        },
        "required": [
          "service"
        ],
        "type": "object"
      },
      "name": "build_uds_request"
    },
    {
      "description": "Convert a 3-byte UDS DTC to the SAE J2012 style code (P/C/B/U + digits) plus failure type byte, or the reverse (\"U0073-00\" to hex). With a status byte, explains each of the 8 DTC status bits.",
      "inputSchema": {
        "properties": {
          "dtc": {
            "description": "Three bytes hex (\"01 23 45\") or a code (\"P0123-45\").",
            "type": "string"
          },
          "status": {
            "description": "Optional status byte, e.g. \"0x09\".",
            "type": [
              "string",
              "integer"
            ]
          }
        },
        "required": [
          "dtc"
        ],
        "type": "object"
      },
      "name": "decode_dtc"
    },
    {
      "description": "Reassemble ISO-TP (ISO 15765-2) messages from CAN frames, per CAN id, and decode each as UDS. Reports frame types (SF/FF/CF/FC), flow-control BS/STmin, sequence-number errors, interrupted messages, padding, and N_Bs/N_Cr/STmin timing warnings when timestamps (ms) are given. Accepts a frame list or a candump text dump.",
      "inputSchema": {
        "properties": {
          "decodeUds": {
            "description": "Decode each reassembled message as UDS (default true).",
            "type": "boolean"
          },
          "frames": {
            "anyOf": [
              {
                "items": {
                  "properties": {
                    "data": {
                      "type": [
                        "string",
                        "array"
                      ]
                    },
                    "id": {
                      "type": [
                        "string",
                        "integer"
                      ]
                    },
                    "t": {
                      "type": "number"
                    }
                  },
                  "required": [
                    "data"
                  ],
                  "type": "object"
                },
                "type": "array"
              },
              {
                "type": "string"
              }
            ],
            "description": "Array of {id, data, t?} (id hex string or number, data hex string or byte array, t in ms), or a candump-style multiline string."
          },
          "padding": {
            "description": "true: warn on unpadded short frames; false: warn when padding bytes appear.",
            "type": "boolean"
          }
        },
        "required": [
          "frames"
        ],
        "type": "object"
      },
      "name": "decode_isotp"
    },
    {
      "description": "Decode a UDS (ISO 14229-1) PDU from hex: request, positive or negative response. Names the service, sub-function (and suppressPosRsp bit), DID/RID/address fields, and for negative responses the NRC with meaning and typical cause. Unknown SIDs and NRCs are labelled, not rejected.",
      "inputSchema": {
        "properties": {
          "direction": {
            "description": "Optional hint to disambiguate.",
            "enum": [
              "request",
              "response"
            ],
            "type": "string"
          },
          "hex": {
            "description": "PDU bytes, e.g. \"7F 34 78\" or \"0x22 0xF1 0x90\" (no ISO-TP header).",
            "type": "string"
          }
        },
        "required": [
          "hex"
        ],
        "type": "object"
      },
      "name": "decode_uds"
    },
    {
      "description": "Short UDS reference with ISO 14229-1 clause pointers (paraphrased). Topics: a service ID (0x27) or name, an NRC (0x78 or \"nrc 78\"), a DID (F190) or RID (FF00), timing (p2, p2*, s3), sessions, security (0x27 vs 0x29), reprogramming_sequence. Unknown topics return a topic list.",
      "inputSchema": {
        "properties": {
          "topic": {
            "type": "string"
          }
        },
        "required": [
          "topic"
        ],
        "type": "object"
      },
      "name": "uds_reference"
    },
    {
      "description": "Plan how to integrate the UDSLib C stack (ISO 14229 UDS server/client for embedded ECUs): which repo files to take, Kconfig/config hints, an init skeleton, the closest example, and the license terms (free noncommercial / commercial). UDSLib speaks ISO-TP over CAN/CAN-FD; DoIP is not supported.",
      "inputSchema": {
        "properties": {
          "features": {
            "description": "dtc, dtc_persist, security, authentication, bootloader, flash_tool, custom_service, periodic, roe",
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "role": {
            "enum": [
              "server",
              "client"
            ],
            "type": "string"
          },
          "rtos": {
            "enum": [
              "baremetal",
              "freertos",
              "zephyr",
              "linux"
            ],
            "type": "string"
          },
          "target": {
            "description": "MCU or board, e.g. \"STM32F103\", \"H563\".",
            "type": "string"
          },
          "transport": {
            "enum": [
              "can",
              "canfd",
              "udp-sim"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "udslib_integration"
    }
  ]
}

What the leaf hashes

{"body":"e10014ed266c53b4dc0d1d904f7d1a49ce6c67d5e889b8a5a652549d473d801e","id":562462,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793137400084873,"prev":null,"subject":"ec294396-2228-410d-8db2-e82f19217aaf","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. 0x3ded1c900a3b5ace224f26b4f1343418573182025e9dde4438d7928a1fec9eae
2. 0xa05441748a51d7085f7a5fb6bc921871ecd1e498e09161f845d8377382dc577b
3. 0x45d5e222efef8cb16a5ddfdc7a2192559b17f4e48d4ef8a8a98c96daf5fb9e78
4. 0xd3d85066ab1900caacf7c9185019b2d2cf1189912c187139b4e16231b1faeff3
5. 0x2f01f8e7580f7873e649c931713159b5c8494947340b66ed22148eec675d6bfc
6. 0x7e79f211f08372458c329d527d26373bb50b3e38b30b6161e972257f82e6ccd3
7. 0xa62fd4dc812bb7b547a0f9b6e950128946d0a4f09fca5ed069762033ce1e1719
8. 0xce83a080d17d3544af57d7921dc712607686fa3c3a49e5e043c7f72a99ad652e
9. 0x7a125ef269a7cf80d4671f70b850f11ddb426c25e252fc2ba930c2443638d7ec
10. 0xde052316b80dd351e113a56cd5f24afafc51069de76d76a7cf9a7b4c84df577f
11. 0x72a9eea56fa8fe6147ec462fca13ccc12c36b4a569355901f77cd04c8ab372e7
12. 0x139a61fc1533aad2dd83b82b2ec2330ee3422710b28d63ce7ff509ed7d7bc93e
13. 0xe097a5c0640b3c074fef1c9f5fe91898965687ad755f1c27c31462a60e313f0a
14. 0x1de9caca1fa6dbbe090ee48dad5f962bbfd09856fd897edc8c3c110272d35c56
15. 0x2c117b27721eea45f6590fbccb471d21a7b0b079a53f089ecb300c63bdb3aebf
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4