Evidence row 258229

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Identify which component (DB, external API, compute) is the dominant latency source.",
      "inputSchema": {
        "properties": {
          "computeTime": {
            "description": "Time on in-process computation in ms",
            "type": "number"
          },
          "databaseTime": {
            "description": "Time on DB queries in ms",
            "type": "number"
          },
          "externalApiTime": {
            "description": "Time on external API calls in ms",
            "type": "number"
          },
          "responseTime": {
            "description": "Total response time in ms",
            "type": "number"
          }
        },
        "required": [
          "responseTime"
        ],
        "type": "object"
      },
      "name": "bottleneck_detect"
    },
    {
      "description": "Detect missing or suboptimal HTTP caching headers and get prioritized fixes.",
      "inputSchema": {
        "properties": {
          "dataSize": {
            "description": "Response body size in bytes",
            "type": "number"
          },
          "headers": {
            "description": "HTTP response headers as key-value object",
            "type": "object"
          }
        },
        "type": "object"
      },
      "name": "cache_opportunity"
    },
    {
      "description": "Get a prioritized, actionable optimization plan. Accepts raw metrics or the output of perf_analyze.",
      "inputSchema": {
        "properties": {
          "dataEfficiency": {
            "description": "From perf_analyze output (optional)",
            "type": "number"
          },
          "dataSize": {
            "type": "number"
          },
          "errorRate": {
            "type": "number"
          },
          "grade": {
            "description": "From perf_analyze output (optional)",
            "type": "string"
          },
          "responseTime": {
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "optimization_suggest"
    },
    {
      "description": "Grade API response time (A–D), compute throughput and data efficiency, get targeted recommendations.",
      "inputSchema": {
        "properties": {
          "dataSize": {
            "description": "Response body bytes (default: 1)",
            "type": "number"
          },
          "errorRate": {
            "description": "Error rate 0–1 (default: 0)",
            "type": "number"
          },
          "requestCount": {
            "description": "Parallel request count (default: 1)",
            "type": "number"
          },
          "responseTime": {
            "description": "Response time in milliseconds (> 0)",
            "type": "number"
          }
        },
        "required": [
          "responseTime"
        ],
        "type": "object"
      },
      "name": "perf_analyze"
    }
  ]
}

What the leaf hashes

{"body":"d2f306c38c57cf30ee5dab7e1bff78a1ae29b37151a25273d036c26175b61ebc","id":258229,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793030001626886,"prev":null,"subject":"ce28bc04-217e-46b1-9829-d63a52e2ad4d","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. 0xe20fa3966fafe9658559fd86557aa13890136cc28cd454c66ffd53e268dfad4e
2. 0xd94fdcfb7809d7e380a934c7c608be3a75ab36ba78b7b5312f0dd48bc9c46c44
3. 0x410ee96c7847417a6e6f384d9c25f77c3608b0efb7c3d29f10fe1e5f932efad1
4. 0x624600fd208b164e96a1e4c9352255bf9ce0b93cadd45ee25b71eee0e15cb183
5. 0xcfbc345f7cb42934574b9f4d490cb82aae4346d52e2dc55a3dc39744253468cd
6. 0x7059c250c673237768693726f52515b1cad1b758616e83160e4232e5276dd632
7. 0xa24d857d7217388e42e4fafc443b180a3d9559b38d8660abed34c586af7caee7
8. 0x619226b081f8ec738be488c7c844bf6414cb359178e46efadd8d2f07fbd66e5e
9. 0xe063f5fccc9cbc21acabf9481af1cf1a69302a8ff004733c8d05c188c56f3cbe
10. 0x49d720e73d446e1def3567153233c121c2d3097da1088aec52da97cc45a1a260
11. 0xce35ce45ef8f8ea3dfabeeed3d2069f34fb82c77d0d8f31e3429b7d6deb0a351
12. 0x714c96bd488ccf4af927c8bc83397404f7f6f1b165b622d0e8216290209825e4
13. 0x3fcdf7fa32ccefe771eb57ae3015142065d64e3ce732fea7d11b9a3c99dde44f
14. 0x0b7541c75cc482a7134110311d7dbd02095d969ba21177de9b21a52a55981718
15. 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae