Evidence row 555398

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-gateway-production.up.railway.app/api/crypto/markets"
    ]
  ],
  "name": "x402-gateway-production.up.railway.app/api/crypto/markets",
  "owner_address": "0x7dd5be069f2d2ead75ec7c3423b116ff043c2629",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629",
        "scheme": "exact"
      },
      {
        "amount": "2000000000000000",
        "asset": "0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7",
        "extra": {
          "name": "USDm",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:4326",
        "payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "Gzehfseq1k9AcHFSoV7qHmDGQx92nLMw78XXdqVWQQWa",
        "scheme": "exact"
      }
    ],
    "description": "x402engine — Market rankings with price, volume, market cap — filterable by category",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "category": "decentralized-finance-defi",
              "currency": "usd",
              "limit": 100,
              "order": "market_cap_desc",
              "page": 1
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "category": {
                      "description": "Filter by category ID",
                      "example": "decentralized-finance-defi",
                      "type": "string"
                    },
                    "currency": {
                      "default": "usd",
                      "description": "Fiat currency for pricing",
                      "example": "usd",
                      "type": "string"
                    },
                    "limit": {
                      "default": 100,
                      "description": "Number of results (1-250)",
                      "example": 100,
                      "type": "number"
                    },
                    "order": {
                      "default": "market_cap_desc",
                      "description": "Sort order",
                      "example": "market_cap_desc",
                      "type": "string"
                    },
                    "page": {
                      "default": 1,
                      "description": "Page number (1-500)",
                      "example": 1,
                      "type": "number"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T09:45:30.107Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-27T09:45:29.895Z"
    },
    "resource": "https://x402-gateway-production.up.railway.app/api/crypto/markets",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "x402engine — Market rankings with price, volume, market cap — filterable by category"
}

What the leaf hashes

{"body":"71c9c05e07e55c8fbb393ce0dccaf4d09be88e64a3fb0fa53deaf88aebd6137b","id":555398,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133790877885,"prev":456470,"subject":"x402_bazaar:https://x402-gateway-production.up.railway.app/api/crypto/markets","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. 0x170b4fefeb67bb18388be2920184d200a8b0063962a11950e4263b56eee499c1
2. 0x23257208f6997d6c87e2c53fe4dfda1363e21189e0e92549e41dea969141c10e
3. 0x6da91b61ea4bf8b612af9631776913d50f283ababa8a724ffc82a1f4cee17467
4. 0x78018d9ad02060aa2b4ee492af3569fb7a087463a66ecb0a369f981a3546a9a0
5. 0x49bda8528cfc59955656e618c004640b79b49ac98ff09774e1d44780f5fe34e7
6. 0xbed4273443425c4938f559a3ccdecf45f36c9ac64a12e69d4cf753c87ff836a0
7. 0x52fe9947e45d8670e801a7891d54ffbf1c8b85e77d50a1aa0179da1b3a8ed29b
8. 0xde2be648131afb4aebd6d9fa44233dfecd5c35929e32cb955682a5f7bdb8648f
9. 0x82c880c9aef6d10fc2c00e382627e9c782d7eac1cc14d677293ec7ecd4e71e6f
10. 0xdb7245f9298926c48a065defbaa157febf69634706cf59e907767fc1334235cc
11. 0x55acee356f0b717dd0920b0cde9e99b43bd0a0b1161a35ac6c315aa50f2d66f6
12. 0x62c7e7967ec467dcf70ca9a9f01831f05b5b4a07c07491cc03340b1479c7ea31
13. 0xfae7ed2d06f4d6ced86c104b6381c26d795f82be10e6314b53b0524bd75a292f
14. 0x52c5141da0cbee106a30396ee7d1360fd22f55084aca2ca436c8007892775670
15. 0x6913cb48392acb8dc5c940dcdb6e6fc889d544f85dff11da249551a5f027e688
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4