Evidence row 458232

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.aiskills402.com/v1/skills/jwt-verification-review/file"
    ]
  ],
  "name": "JWT Verification Review",
  "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": "JWT Verification Review — Reviews ONE piece of code that verifies JSON Web Tokens for the five mistakes that let a forged or stale token in, and lists only those, one line each with a fixed code, the function, why it hurts and the fix - or exactly No findings. It catches an algorithm taken from the token header or no fixed algorithm list, an expiry check switched off, neither audience nor issuer checked, a payload read with decode where verify is needed, and a signing secret written into the so…",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "file": {
                "content": "<the SKILL.md file>",
                "encoding": "utf-8",
                "name": "SKILL.md"
              },
              "name": "JWT Verification Review",
              "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": "jwt-verification-review",
              "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": "2026-10-27T08:01:50.657Z",
    "quality": {
      "lastCalledAt": "2026-10-27T08:01:50.657Z"
    },
    "resource": "https://api.aiskills402.com/v1/skills/jwt-verification-review/file",
    "serviceName": "JWT Verification Review",
    "tags": [
      "agent-skill",
      "jwt-verification-review",
      "jwt",
      "authentication",
      "token-verification"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "JWT Verification Review — Reviews ONE piece of code that verifies JSON Web Tokens for the five mistakes that let a forged or stale token in, and lists only those, one line each with a fixed code, the function, why it hurts and the fix - or exactly No findings. It catches an algorithm taken from the token header or no fixed algorithm list, an expiry check switched off, neither audience nor issuer checked, a payload read with decode where verify is needed, and a signing secret written into the so…"
}

What the leaf hashes

{"body":"6584879cd94ebb148c7194db1d6b9023e87a881d88b7d1e6d889aec3c9ccbcb7","id":458232,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100982197861,"prev":null,"subject":"x402_bazaar:https://api.aiskills402.com/v1/skills/jwt-verification-review/file","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x7068979adfb29b689c56325b43a26ab664da5d6c063b6e65d6035d66f193aa4c
2. 0xb1eef7a58fd9d2270d73601c9e0d72a0d92b2ebfa1b3d1a1142bab3eef4a6533
3. 0x56fc3e1e09a06d5852dd670483225f342de72a048200b683b2ae038840629890
4. 0x0a056651ac2763836d9911847a4218fa8d95213972e4f45977424a3fd65f11eb
5. 0x7969f3a5351cc886afb2b6c468fd4390811569bba46fd4e406973cc922a900b5
6. 0x5091dc8ce3fbfe0909e153e1cc22aede1784cca2ce524b573b2b8e5ce03f50b1
7. 0xb0559573cdebc2b5d7b913e5895d3d4f31f5a159e93a05ea9209594dc6e21e55
8. 0xa22d5c5a2b647beea4a74720e42182e2cc00829ab90d077861113f3a15a42d9f
9. 0xf48868f3c90c07ba6de26493a5e2d4b9db82ba601f6d9ccef31447643d5b59cc
10. 0xa872bb1ffbdef6595bfc705d18f83e37733b9021795ed6fbd6b9106deb871710
11. 0x8dfd9b64c5c5705a7996a8e2695cbd3c6bcad8c7f84f2d6e132889f554cf23cc
12. 0x4150865dc22c5026ab3aaed78166c00f6d1d55d60deb27596b675ffe296e1e81
13. 0x2926e99aefa0ff2e14a67a3ae10a7f6e753ce4b799c6fe531f8cbf8d33b31a66
14. 0xb2ae53d841a55a805fb4078b1a7d44e08a81aba4be3690bac3a5b4c366bf39da
15. 0x275720ecabb68df33eee92ae4fd70572a8d952d6c61c061c2869cfc3217aa5c5
16. 0x23cf9bb4337ee8be7fcae368fd69d24c62c11fb45882127b4cd919bb96a19996
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4