Evidence row 520832

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Assess counterfeit RISK for a collectible listing (a risk SIGNAL, never proof of fake). Combines marketplace base-risk + a price-vs-retail-median check when the item is a known collectible niche. Returns a risk level (low/med/high), a score, the signals, and authenticity advice.",
      "inputSchema": {
        "properties": {
          "marketplace": {
            "description": "Optional: where it's listed, e.g. 'aliexpress', 'ebay', 'etsy'.",
            "type": "string"
          },
          "price": {
            "description": "Optional: the listed price to compare against the retail median.",
            "type": "number"
          },
          "query": {
            "description": "Product or brand, e.g. 'Funko Batman' or 'LEGO 10307'.",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "counterfeit_risk"
    },
    {
      "description": "Look up active US product recalls for a product or brand against live government feeds (CPSC/FDA/NHTSA-style aggregate). Returns matching recalls with the official agency source link and last-updated date. Use to check if something is recalled before buying/using it.",
      "inputSchema": {
        "properties": {
          "query": {
            "description": "Product name or brand, e.g. 'Peloton bike' or 'stroller'.",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "recall_lookup"
    },
    {
      "description": "Run both a recall lookup and a counterfeit-risk check in one call. Best general-purpose product-safety screen.",
      "inputSchema": {
        "properties": {
          "marketplace": {
            "type": "string"
          },
          "price": {
            "type": "number"
          },
          "query": {
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "safe_check"
    }
  ]
}

What the leaf hashes

{"body":"79c84f852ad4ddcf6369228e04ad71a5955f9f7b9cfabfc3b30be10fc18a1b9b","id":520832,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793123056989697,"prev":null,"subject":"489247b3-b908-4dec-bdb5-c10d1358d200","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. 0x53a1354c5176d3c369f74672854875537549b44b2d78f00b58e4fbde05f9a651
2. 0xf5e112275ed253e6be425bdcd9820d04b341e9d6fe63529d9812ce3fd70fcfb0
3. 0x2cec64bafb7fc8b70fe092aa341e90223b399e789766488f9df0f04da0724efd
4. 0x035bd4c379ccad5893a62f3bd016b7a8f5c627f23876cc8bb0cd5be9051fade7
5. 0x47d04aafab3ca21ab0f79dd8bcbf6fbdd7dd6a5ae61f27b7c462ecefce6b766f
6. 0xfabf9fd546bae8f1968fa95f7a2a7d942c8f4fd80720748b580fb841b14a01bd
7. 0xc7b5bbe206a90bcf6d52598967167b2d123713ac42cfbae20769c2da1b6a92e3
8. 0x5a5a3240974f2f176576e99f4a146b7c9237cd99e22e848217a2cb94c112a910
9. 0x8ebf9fddc167abcd091672be0b6782b3b3267ca10a4892c96c256f1d014b0583
10. 0xbbb9b83ab3dda0e6960215057b339878a58150356a599369c48d43028e63bbbd
11. 0xc937be26deed9e9728196f150649c70fb24a172a75061bc041b65fa5eb20a3ef
12. 0xf8587b476357dd9dd2bdcf36df59b8f5ada3a7d06a3872295a01a0dd6b9e36d1
13. 0x996f3d89f9508378f3c194c9828b500725dd599c52fd040349190982338d96f2
14. 0x9ea0c6a53f80a30b6f13671109f98a000cf98e581875129f4be4b57131d06364
15. 0xb78ea6a255dd06e2f402a1a733bca392fa6243920bcba95e8b80bdfc6ce5f553
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4