Evidence row 302249

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Find parts by specification when no part number is chosen yet, e.g. while designing a circuit or a distribution panel: AC-DC power supplies (SMPS) by output voltage and minimum power or current; circuit breakers by type (MCCB 배선용, ELCB 누전), poles and rated current; cables (F-CV power cable, HFIX building wire) by the current they must carry, cores and installation; inductive proximity sensors by size, sensing distance, mounting, output (NPN/PNP/DC 2-wire, NO/NC) and connection. Returns manufacturer-catalog models (MEAN WELL power supplies; LS ELECTRIC and HD Hyundai breakers; LS Cable cables; Autonics PR proximity sensors) with their specs; for parts, how many BIDON sellers list each in Korea and whether BIDON supplies it directly, with stocked models first. Call lookup_part on a part result for prices and listings.",
      "inputSchema": {
        "properties": {
          "breaker_type": {
            "description": "breaker: MCCB (배선용차단기) or ELCB (누전차단기)",
            "enum": [
              "MCCB",
              "ELCB"
            ],
            "type": "string"
          },
          "cable_type": {
            "description": "cable: f-cv (0.6/1kV flame-retardant power cable, 1-4 cores) or hfix (450/750V single-core building wire)",
            "enum": [
              "f-cv",
              "hfix"
            ],
            "type": "string"
          },
          "category": {
            "description": "power_supply (AC-DC SMPS), breaker, cable (power cable / building wire) or sensor (inductive proximity sensor)",
            "enum": [
              "power_supply",
              "breaker",
              "cable",
              "sensor"
            ],
            "type": "string"
          },
          "connection": {
            "description": "sensor: 2m cable, M12 connector, or 300mm cable with M12 connector",
            "enum": [
              "cable",
              "connector",
              "cable_connector"
            ],
            "type": "string"
          },
          "contact": {
            "description": "sensor: normally open or normally closed",
            "enum": [
              "NO",
              "NC"
            ],
            "type": "string"
          },
          "cores": {
            "description": "cable: number of cores, e.g. 3 for a 3-phase circuit (HFIX is single-core)",
            "type": "integer"
          },
          "form": {
            "description": "breaker: molded_case (산업용 MCCB) or distribution (주택·분전반용 소형)",
            "enum": [
              "molded_case",
              "distribution"
            ],
            "type": "string"
          },
          "installation": {
            "description": "cable: air (기중), underground_duct (지중덕트, F-CV) or conduit (전선관, HFIX)",
            "enum": [
              "air",
              "underground_duct",
              "conduit"
            ],
            "type": "string"
          },
          "min_ampacity_a": {
            "description": "cable: minimum current rating in A",
            "type": "number"
          },
          "min_current_a": {
            "description": "power_supply: minimum output current in A",
            "type": "number"
          },
          "min_distance_mm": {
            "description": "sensor: minimum sensing distance in mm (standard iron target)",
            "type": "number"
          },
          "min_power_w": {
            "description": "power_supply: minimum rated power in W",
            "type": "number"
          },
          "mounting": {
            "description": "sensor: shielded (flush, 매입형) or non_shielded (non-flush, 비매입형, longer range)",
            "enum": [
              "shielded",
              "non_shielded"
            ],
            "type": "string"
          },
          "output": {
            "description": "sensor: switching output",
            "enum": [
              "NPN",
              "PNP",
              "DC 2-wire"
            ],
            "type": "string"
          },
          "output_voltage": {
            "description": "power_supply: output voltage in V, e.g. 24",
            "type": "number"
          },
          "poles": {
            "description": "breaker: number of poles, e.g. 2, 3 or 4",
            "type": "integer"
          },
          "rated_current_a": {
            "description": "breaker: rated current in A, e.g. 50",
            "type": "number"
          },
          "size": {
            "description": "sensor: cylindrical housing thread size",
            "enum": [
              "M8",
              "M12",
              "M18",
              "M30"
            ],
            "type": "string"
          }
        },
        "required": [
          "category"
        ],
        "type": "object"
      },
      "name": "find_parts_by_spec"
    },
    {
      "description": "Find Korean sellers and makers on BIDON by what they sell when there is no exact part number: a product type, an industry or a maker's line, in Korean or English, e.g. \"2차전지 파워모듈\", \"반도체 장비 부품\", \"SMPS\", \"battery equipment\". Returns their sale posts with what they sell in their own words, what it is for, their strengths, the part numbers they list, and a link where the user can ask the seller for a quote. Call lookup_part when a part number is known.",
      "inputSchema": {
        "properties": {
          "query": {
            "description": "Product type, industry or keywords, e.g. 2차전지 파워모듈",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "find_sellers"
    },
    {
      "description": "Look up one electronic or industrial part number (or a cable name such as \"F-CV 2.5SQ 3C\" or \"HFIX 2.5SQ\") on BIDON, the Korean B2B parts marketplace. Returns Korean sale listings with quantity and price, real recent quotes in KRW with lead time (buyer names hidden), manufacturer specs, same-spec alternatives from other makers, and whether BIDON supplies it directly (MEAN WELL, MORNSUN, CLAF: quote by the same business day). Every result starts with a one-paragraph summary of availability and how to buy, and links the part page where the user can buy or request a quote.",
      "inputSchema": {
        "properties": {
          "part_number": {
            "description": "Manufacturer part number, e.g. LRS-150-24 or B0505S-1WR3",
            "type": "string"
          }
        },
        "required": [
          "part_number"
        ],
        "type": "object"
      },
      "name": "lookup_part"
    },
    {
      "description": "Find BIDON part pages whose part number contains the given text (at least 3 letters or digits, separators ignored), e.g. \"LRS-150\" or \"B0505\". Use it when the exact part number is unknown, then call lookup_part.",
      "inputSchema": {
        "properties": {
          "query": {
            "description": "Part of a part number",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_parts"
    }
  ]
}

What the leaf hashes

{"body":"a0acc8bd7efe677ec7cbe678423a563ed4f9f5e8404c08bb08aa58a42d1015e8","id":302249,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793054573727907,"prev":null,"subject":"67ca3121-a076-4749-ab17-e00cbdd74c77","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. 0x9d3d30d3aa412477fe4008315c2d871b24948168325860d48b5b11a3002105be
2. 0x173c10ecae9e81f1e847478d6ac6e5898f3900ac68940745c6f9732b57e2494a
3. 0x47d40784753d9e9934788b4c3eb0e5167ee4f9ceae25c135fdf791a2b3e70e8b
4. 0x15974a2c24fc4663eb19883af654eec082f74d7099e39078408ad68999b02a30
5. 0xc3411b0bc674e0519661affb049aa3eeb85fa94861cd4465df47fb9382bcf70e
6. 0xbf76c0bdb66c5001ecaaf3e28ca9f0d4d180d0d8f2ff6469e906eeaa18539df3
7. 0xcfde6cacf6c58e948dd576d9ce14bea5f712eec27d3a7f3006b5e7baaefb0af2
8. 0xb3703396b3a4e856d16148e6d812c3bbf55df2e670f9e23e9d481295a73c4af0
9. 0x1bcbf8375aaf58d02b4aded4c7af71885f0b6b377c5f81833bf9c3798b73f819
10. 0x76f7db8632e242ae6ea1dd18963ee2f7db2ce4bf8b0d87a280492cce08baa2cf
11. 0x351390dbbaa59bf254610c44de6ad39906ad2c226e8f737f7d774c0b9d382abf
12. 0x73cca5e5ba14c0aaa799d5324b89eb846e3c5546aab3b2cda0c05c5eeaa03168
13. 0x99a4e0f8b23989f58b564c1b6e419578b4388f6e0dbf6e50177c1bd476302d0e
14. 0x6713795704ddd9c528d421fadd9cc96b0200a4ddbba84f88e718d4968dde888b
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae