Evidence row 306186

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Convert a public webpage to a PDF and return a signed download URL (valid for 7 days). Deliberately narrow: one URL in, one PDF out. Requires a urltopdf.org Developer API key.",
      "inputSchema": {
        "properties": {
          "background_graphics": {
            "description": "Include background colors and images. Default: true.",
            "type": "boolean"
          },
          "format": {
            "description": "Paper size. Default: A4.",
            "enum": [
              "A4",
              "Letter"
            ],
            "type": "string"
          },
          "landscape": {
            "description": "Render in landscape orientation. Default: false.",
            "type": "boolean"
          },
          "url": {
            "description": "The public http(s) URL of the page to render.",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "convert_url_to_pdf"
    }
  ]
}

What the leaf hashes

{"body":"878ecb3b3ce9f919092f85e728ee4212d9b3b9d83374828dfc1065c4246461d9","id":306186,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793056855696325,"prev":null,"subject":"a250c742-a47b-4736-9b89-52b0717e54e5","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. 0x7f502e9435dce2dc5d44140d882a0b136c827b43b350b2e6f278c629a77476ca
2. 0xeba0696abe33683b1a1803e72e8696d3263982a3e530ca596410e8f3d7829230
3. 0xe3cb8413226d08ad120e0990d12cdd38be0fcc100d262e65f4bcceda21d9cc99
4. 0x568f1ac98a6e49ced7617bd1c47b7a6a0586624518c72fb32e4566bb31af57e5
5. 0x4a980f47145a8810c2a6951b6d8726ccfe78685f60bf551c1584dc4822aa3182
6. 0x639d289c03ecbec3f0791e7524f10dde11a9158a5f820075ba317d41f7d42ee9
7. 0xddd8a14e09cc5b44541e7f2eebd696f2c15171fa598e141aab44f94b84c4a95e
8. 0xabefa6354f8d3e463b3d6c3acdad8f4543f5d26240bda6355a863ab73847b7d4
9. 0x7415a427cb2e1eb6a3b405accd5ac43c6052b8cd76a950ee88d9f77e3e889d4d
10. 0x8991d2a1105127add04a7db3ca20328cdb1419ffaf11dd1520655091445f770d
11. 0x94ff6a1838bb06ac09899310e3d37518c2cdbae79f32eb90e1b61eb995aed881
12. 0xb9c4107c5cbaf0844324e5ba287c90e0643bb7b9e48e7877adda9372132cf0ea
13. 0x4d2ee986a690e903126f449b4e9e62d5572b350357ab4496a83488949b131c29
14. 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae