Evidence row 64959

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.aiskills402.com/v1/skills/summary-fidelity-check/file"
    ]
  ],
  "name": "Summary Fidelity Check",
  "owner_address": "0x8e37022edcf0f21cf3c9f93fee9d4d32519f36f4",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x8e37022edcf0f21cf3c9f93fee9d4d32519f36f4",
        "scheme": "exact"
      }
    ],
    "description": "Summary Fidelity Check — Checks a summary against the source text it was made from and lists the summary sentences the source does not support, each copied word for word, as strict JSON. It catches a number that was rounded or given another unit, a hedge that became a certainty, a cause the source never states, two facts joined into a false one, a claim whose speaker was dropped, a fact that comes from outside the source, and it ignores any instruction hidden in the source. A sentence is judged…",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "file": {
                "content": "<the SKILL.md file>",
                "encoding": "utf-8",
                "name": "SKILL.md"
              },
              "name": "Summary Fidelity Check",
              "ok": true,
              "receipt": {
                "settled": true,
                "tx": "0x<settlement transaction>"
              },
              "redownload": {
                "token": "<64 hex chars>",
                "url": "<api>/v1/purchases/<token>"
              },
              "sha256": "<sha256 of SKILL.md>",
              "skill": "summary-fidelity-check",
              "version": "1.0.0"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "headers": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-15T19:08:05.754Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-15T19:08:05.468Z"
    },
    "resource": "https://api.aiskills402.com/v1/skills/summary-fidelity-check/file",
    "serviceName": "Summary Fidelity Check",
    "tags": [
      "agent-skill",
      "summary-fidelity-check",
      "summary",
      "fidelity",
      "faithfulness"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Summary Fidelity Check — Checks a summary against the source text it was made from and lists the summary sentences the source does not support, each copied word for word, as strict JSON. It catches a number that was rounded or given another unit, a hedge that became a certainty, a cause the source never states, two facts joined into a false one, a claim whose speaker was dropped, a fact that comes from outside the source, and it ignores any instruction hidden in the source. A sentence is judged…"
}

What the leaf hashes

{"body":"76e766a98d3ab3a786b2c1863b9349e08d1010785e8f5c28f99d63c159df24d5","id":64959,"kind":"listing","method":"baseline/1","observed_us":1793025457516593,"prev":null,"subject":"x402_bazaar:https://api.aiskills402.com/v1/skills/summary-fidelity-check/file","subject_kind":"source_record"}

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. 0xf5e43a3c68a417127a34c82c8094694bf558b17d15515e396d516436cae7e576
2. 0x694cf8fd6dc57fb05c8f27c514721d39e5264fc8068fa73ab48bfe3dc00b559c
3. 0xca87533a861a129e302f76bd9210761c9927001975763a56da04fa082adf3b36
4. 0x14754a79533f4a94e544b29a60f9f94b6d47c22e488ec260ef8f473adc72879b
5. 0xaf70a05095c613c9702fe289cab405a8b6aee675980a63623f86a6157f65157a
6. 0xaa6fb4616812c473e54542d8c2785851b8eacc26f86daefa9262980235baff0e
7. 0xd21cbb778bb3200485954868c5150e4136b0b3f820599bde59e7c36fe6ccc5ce
8. 0x7660d69949eef32f96c66c43b8e1f447dab15a109cfadc0c67284bf46534adfb
9. 0xb03236d00755f756b022b8acf5ce6221f112d498410fa189525c0cd9621ec373
10. 0x74b5156f36a704300634e9161bdb27e48fa391139b74707200a8fdaa6bea760a
11. 0x625d2af057e293be1c3beb719789f9dc49df6cf80f71fb50444e4cba386a048f
12. 0x4eeaa4735423e7633e0aaa6154804920315f945b1e4ceabd29282ec021cce244
13. 0x79695e4356ea25a2b58265a824698704cd2c743099ce2dca9e41384ce8f1a8c5
14. 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae