Evidence row 567449

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Brand-neutral carbide grade cross-reference. Returns grades comparable at the same ISO application position, with verified vs single-source labeling. Never invents a grade.",
      "inputSchema": {
        "properties": {
          "brand": {
            "description": "Optional brand filter, e.g. Sandvik",
            "type": "string"
          },
          "grade": {
            "description": "Carbide grade code to look up, e.g. GC4325",
            "type": "string"
          }
        },
        "required": [
          "grade"
        ],
        "type": "object"
      },
      "name": "grade_xref"
    }
  ]
}

What the leaf hashes

{"body":"86c9fa7b8e38c6b10c62b888c5b2d887a04333af1e44d237ac8ffc2558fb3771","id":567449,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793138738253815,"prev":null,"subject":"8007ea1d-7297-410a-8a40-cd977ae83ec6","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. 0x566cb5ca0805f048d410d57105c84aab7559db41788c70d24a7c4caa42b61894
2. 0x1f693787acf2bb869abe3a2a59e9aba1894f9af43c2205dd67a35b7b8b482b10
3. 0x10aadf376c9e11ad940562185c4eeb52582ab577ee8fb8991991bc4f6a90e6b9
4. 0x011ece37e3d5b5fddd2a6cc07a7eb4a05d9af6f18173a9ba1d14156f49228b29
5. 0x0147fa67a8d73fea390149b7d450dd7f8300fd2204fbb85a5488e820785d016e
6. 0x5a6eab29c0f3e109b496fc83c0b402e3a3da8a7f0e29c79cf908b557aa683d02
7. 0x38edd7c12663ba0f46c3e9f3a499f5f34df72749bee6e218837b6f6c377e1828
8. 0xbffee6408a0aeca763471312fb4cae30c07d5a0d66635d0917ce4c76592b0c1c
9. 0x068f20b9cd17ecf34e87b702f60deb5df417ef2e38436fdd00ee7b0d45b413d1
10. 0xc22f3135ca4633c230e513d96cbd62a7ad2b2817efbf661daed398daf3594300
11. 0xb779e51de1c3f1430eb1b8e7080208656e6654f51fea635c54304a95d9d07713
12. 0xbda8a72c454627630518fefedac1e595455f868382eb4add82d53de75ccbae18
13. 0x906b5f0e8ef1fe7894886d84f460bb3239d5f14b14ad4adff27c7dcea6265169
14. 0x674bc1173d39130be4d15bbfc7327f8a8af87eb251e54c8d4409c7e840b9e538
15. 0xb78ea6a255dd06e2f402a1a733bca392fa6243920bcba95e8b80bdfc6ce5f553
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4