Evidence row 2551972

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Product details from Ceneo: name, images, description, brand, price range, offer count and rating. Fetched live from Ceneo.pl (a few seconds via direct fetch; up to ~20s when routed through an unblocker backend).",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "productId": {
            "description": "Ceneo product id (digits) or full product URL",
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "productId"
        ],
        "type": "object"
      },
      "name": "ceneo_product"
    },
    {
      "description": "Given a Ceneo product id, return EVERY shop's offer (shop, price, link) sorted cheapest-first — the price comparison. Get the id from ceneo_search. Fetched live from Ceneo.pl (a few seconds via direct fetch; up to ~20s when routed through an unblocker backend).",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "productId": {
            "description": "Ceneo product id (digits) or full https://www.ceneo.pl/<id> URL",
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "productId"
        ],
        "type": "object"
      },
      "name": "ceneo_product_offers"
    },
    {
      "description": "Search Ceneo.pl (Poland's price-comparison engine) by phrase. Returns each product's lowest price and how many shops offer it, plus its Ceneo product id (use it with ceneo_product_offers). Fetched live from Ceneo.pl (a few seconds via direct fetch; up to ~20s when routed through an unblocker backend). Result shape: { source, fetchedAt, query, count, products: [...], note? } — the list key is `products`, and there are no per-shop offers here (call ceneo_product_offers with a product `id` for those). Each product: { id, name, url, lowestPrice, currency, shopCount, image }; `lowestPrice` is the formatted string Ceneo renders, not a number. A genuine no-match answers count: 0 with a `note` saying what to try instead — that is a successful result, not an error.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "limit": {
            "description": "Max products to return (default 24)",
            "maximum": 60,
            "minimum": 1,
            "type": "integer"
          },
          "phrase": {
            "description": "Search text, e.g. 'iphone 15 128gb'",
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "phrase"
        ],
        "type": "object"
      },
      "name": "ceneo_search"
    }
  ]
}

What the leaf hashes

{"body":"658f230e68ab5a4f078896915d3317707f8e26e6afcd0a2dc7cabf7a9a695714","id":2551972,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793693508328487,"prev":null,"subject":"19e112e9-a276-45d5-86d7-73172c55e1e3","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0xb78e715dc3902dfb2cca7ac239b5cc8b8e6db0cb3c714787ccba2b8e4d7fab44
2. 0x757e12fe0269b45cf0a24b5180bbd86602712398c5e3ec2db29fc08ea486c6ec
3. 0xec12f41b25d7589b5910a675dba27c031af5171b1b120c8861bdd79ac7bc2f7a
4. 0xcf393ebc9143b163e0fbc24ee4b38446eb090939629fd61f09d588609f773f24
5. 0xedda4a669d3d3cef80c11ac4285725e00f19dc37059cfbe8e3d73216a09862eb
6. 0x5f32031f21e86ce7a40809bc60807ecd9583a49bf745a3797951936adaef3b21
7. 0x5cd4744ce5dfdb644d6c4311bc32a2038ee941667997d7e70c5dc66e71fdfa67
8. 0x1f799be3445703e791f7c864d0319781d21cedf1c2062845fa625f4b2bbe536a
9. 0x4436575d3a790eb4ffc9c3adb6570f18ecad6c4dd7737bb8b8e38ecfe0edda73
10. 0xb6ee0ed085c1a8c6cd09394d67e5b6c00b9f53ea2d431c514a56cfd4b2b16ea9
11. 0xca726b79aa48bb12e9a6f5b00db6f192a3ed8885576bef820bf55facdccb1ef7
12. 0x8bb39b2edae4644391a8e85d6dacbc2fed4d19418ebd54176b9c88b8a3c2a1cf
13. 0x7177a2d4d7e26d090279db4f09f90547c14d3dfe27b339cb6b3b812ef7172d44
14. 0x28eca58d5790c044814655f49977e8cb478606900cf691de68ba9ce360992057
15. 0xc0bea6c8a0da854513562c1be034edd9e23999e98182b784da3cae0bf2e3890b
16. 0xf8c1a0cdf4ba2eb105bc3e83d2f2b121cab4a34fb5a3846fa592909906f7fdaa
17. 0x39dab39081985bbfffe23b080399a9d1a9cb9c2c8960102350c4212113cb2cba
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7