Evidence row 2201983

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://dev-reference.x402tookit.com/http-method"
    ]
  ],
  "name": "Dev Reference",
  "owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "transactionVersions": [
            0
          ]
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      }
    ],
    "description": "Whether an HTTP method is safe and idempotent (IANA registry), what it is for, and request-body semantics.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "method": "PUT"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T14:26:45.865Z",
              "bodySemantics": "Body is the full new representation.",
              "cacheableByDefault": false,
              "degraded": false,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "idempotent": true,
              "method": "PUT",
              "notChecked": [
                "methods a specific server or framework supports",
                "CORS rules for non-simple methods",
                "…1 more"
              ],
              "purpose": "Replace the target resource with the enclosed representation.",
              "reasons": [
                "Safe methods are read-only by definition; idempotent methods can be repeated with the same effect as one call."
              ],
              "reference": "[RFC9110, Section 9.3.4]",
              "registered": true,
              "safe": false,
              "source": "IANA HTTP Method Registry (retrieved 2026-10-11), RFC 9110 section 9",
              "summary": "PUT: Replace the target resource with the enclosed representation. Safe: no. Idempotent: yes.",
              "verdict": "REGISTERED"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "method": {
                      "description": "Method name such as GET, PATCH or PROPFIND",
                      "type": "string"
                    }
                  },
                  "required": [
                    "method"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "bodySemantics": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "cacheableByDefault": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "idempotent": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "method": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "purpose": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reference": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "registered": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "safe": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:49:03.38Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:49:03.216Z"
    },
    "resource": "https://dev-reference.x402tookit.com/http-method",
    "serviceName": "Dev Reference",
    "tags": [
      "http",
      "methods",
      "reference",
      "iana"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Whether an HTTP method is safe and idempotent (IANA registry), what it is for, and request-body semantics."
}

What the leaf hashes

{"body":"65306f9130ae679d1b9f895e515244e4ffe884ca583e7688e00e13010817c1a7","id":2201983,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646811121337,"prev":null,"subject":"x402_bazaar:https://dev-reference.x402tookit.com/http-method","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x1e72c61fb03c17ed0b1d66b6679b9da4cc4d162be5f8473f8d3782e8d2653fc9
2. 0x8835adc1b86bb4c5df2d7e9dcd2405d7fd9f25c6ed3895eb536057603312e514
3. 0x5e79451885b361966221df563fe1fb67155a418940984e109b9549effb9a48b9
4. 0xc3c81ec7887cfb11ba55157e3fda12466bf14a28b39a9ed2d2f2904e6646d484
5. 0xea80e25c880f63ce27aa99664c73fecfecb84de66c94802ad926b3f70acad980
6. 0x1649e956864106f2f0795310d9af37fa96e402547da98372386e4243d4337af5
7. 0xe42ad9900e49bfa49c21c4812cf5f60a4860058d2b3c322593b286d446c7d7b1
8. 0x9d4f62e7afa78f6c344482d0383a0df49e386a2cc51c989a981b328dec7ca1bf
9. 0x89625f90fda141ce1ffe8fd2263a0604be6b4bfd571b64c02d19dc9c90d542b5
10. 0x3e6cf8cc108073f4a0be5649f010b670217b9da6cfd7113f5c13e04dc3c51c1e
11. 0x2d180b6ba9c2bf86f17edb453f02057ab623c8756029135a841c96d8b24819a5
12. 0x189fb19645767b3fb6a2034ac4caa97d2f85b8b18f05cfaa0c2b16c045c37f2d
13. 0xd6cbf3765149b25eba4e10fe21fd5993687ecdd3cb9c495f97c3c148afee08ed
14. 0xc63937235d47ff2107de3051477e395be67b96d91d1349c787bf4b1ef91b602f
15. 0xcd21ec8d72a18a2d4513e4fd309abbb530810fb1dbeecd4b9b85acb4d6ff8f12
16. 0xac40f077ca4be8c3432a67771725cc315e8101fc2649999cfad2c900a7640e27
17. 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af