addrbookFor publishers
← The evidence ledger

Evidence row 3767053

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://x402.professorsausages.com/gas-oracle/prices
Recorded
Previous row
#3066536
Body SHA-256
902ce134b2f93b89c9caa91f6ce4ab5bc81e46225499dc05ddccf991146f41a6
Leaf
0xa7562d07e716c92c04c0e07bef2028f6efda56e36ede331c3477cd293f522b7e

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.professorsausages.com/gas-oracle/prices"
    ]
  ],
  "name": "Multichain Gas Oracle",
  "owner_address": "0x54ebfcf3870439b9db62381848c5dabc05c70d5b",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x54ebFCF3870439B9db62381848c5DabC05c70d5B",
        "scheme": "exact"
      }
    ],
    "description": "Chainlink native-token USD prices (ETH/BNB/POL) with round metadata",
    "extensions": {
      "bazaar": {
        "category": "defi",
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "properties": {
              "about": {
                "description": "What this response is and where its data comes from, in one sentence.",
                "type": "string"
              },
              "decimals": {
                "type": "integer"
              },
              "fetchedAt": {
                "type": "string"
              },
              "freshness": {
                "description": "How fresh the data is, measured when you called. `age_seconds` is the number to act on; `max_age_seconds` is the refresh cadence (null = deterministic, cannot go stale).",
                "properties": {
                  "age_seconds": {
                    "minimum": 0,
                    "type": "integer"
                  },
                  "as_of": {
                    "description": "Newest datum this answer is based on (ISO 8601).",
                    "type": "string"
                  },
                  "max_age_seconds": {
                    "minimum": 0,
                    "type": [
                      "integer",
                      "null"
                    ]
                  },
                  "note": {
                    "type": "string"
                  },
                  "tier": {
                    "example": "nightly",
                    "type": "string"
                  }
                },
                "required": [
                  "tier",
                  "as_of",
                  "age_seconds",
                  "max_age_seconds"
                ],
                "type": "object"
              },
              "prices": {
                "description": "Keyed by symbol (ETH/BNB/POL).",
                "type": "object"
              },
              "related": {
                "additionalProperties": {
                  "type": "string"
                },
                "description": "Next steps as paths on this origin. Each is priced by its own 402 challenge; GET /.well-known/x402 prices the whole origin in one free call.",
                "type": "object"
              },
              "source": {
                "enum": [
                  "chainlink-on-ethereum"
                ],
                "type": "string"
              }
            },
            "required": [
              "prices",
              "source",
              "decimals"
            ],
            "type": "object"
          }
        },
        "routeTemplate": "https://x402.professorsausages.com/gas-oracle/prices",
        "schema": {
          "properties": {
            "input": {
              "type": "object"
            },
            "output": {
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "help": {
        "docs": "https://x402.professorsausages.com/gas-oracle",
        "example": "https://x402.professorsausages.com/gas-oracle/prices",
        "openapi": "https://x402.professorsausages.com/gas-oracle/openapi.json",
        "sample": "https://x402.professorsausages.com/gas-oracle/sample"
      }
    },
    "lastUpdated": "2026-11-04T03:33:25.608Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-11-04T03:33:25.157Z"
    },
    "resource": "https://x402.professorsausages.com/gas-oracle/prices",
    "serviceName": "Multichain Gas Oracle",
    "tags": [
      "gas",
      "fees",
      "eip1559",
      "l2",
      "evm"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Chainlink native-token USD prices (ETH/BNB/POL) with round metadata"
}

What the leaf hashes

{"body":"902ce134b2f93b89c9caa91f6ce4ab5bc81e46225499dc05ddccf991146f41a6","id":3767053,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793996756083837,"prev":3066536,"subject":"x402_bazaar:https://x402.professorsausages.com/gas-oracle/prices","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (303443 rows).

  1. 0xa7567e646568abaaa10a9b275f0239551240207fd996a384f525723c8c8c4cf6
  2. 0xfc2d976b619e341a7ecbf7f088da340a2834d752d9f6775dc9410dc34be504c3
  3. 0x9a746698f34623414c0fa1ebcc3cc0feabf70b2d7d1b0fee9c2d77d22fa266db
  4. 0x0959505e239548deb994fa5b00024c9dde97788402e64cb11a13c0daee7d8b08
  5. 0x53f1ca69f15e5f9d395fe6fa12d48c96b1c44952a85dae1f818120f66568beec
  6. 0x0e9477b76307b1c72075a62ce937251b5b8f5f524f0a294a5dbc435b932e6caa
  7. 0xc775277bd861722b648bccc2d6e9d96d5614823f445f5919eb3507f270a8ea17
  8. 0xb436552d378185ce2615a092afaf380e19bff563261665c4dc3f9b6e710348e8
  9. 0xf7275699becfa9b7ca369c902227cb40b56a238baa60baebb39726fc2e314979
  10. 0x0d5443e08e61456d5f517ebb3a4b2c7377e5311f1e7fabfaddaa4c1deb5a0d50
  11. 0x580e3bbc4bb6c4f429e9c0badf12f7cede0d8ac3f7c08fcd40bf1feb99e9f301
  12. 0xe7ecb96ab295a12100ffefef4fd91a5a605c776cb033477ee9019b943e863cb7
  13. 0xb02c1cb653a7746407d955b2e76a432691b775223105f0f2bf6cdd963c56a912
  14. 0xb8cdc3434f126e876ea2c3ff38768a8afbd1988aaba81d57ab2a78f3dfcd545b
  15. 0xb12c082ef1a62be55def66eb167199a0d5bfcaf36f2f6e389298bc918cf1b0bc
  16. 0x4a5b4dca6c638b7872bc6485359586bebc62511ba2776f1ea54dfdaa4d1a511b
  17. 0xf19d501fdbc28e10c3244253daf0c37c4752659eae14a7cba585a18c7df9ce0d
  18. 0xd422a75f6c3780ed53eca52b50bf40b8f17dc14cffb804142e44fc9f2672029d
  19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948
Day root
0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f
Chained
0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3
Published
On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1

How to check it · This row as JSON