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Evidence row 127128

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://x402stock.xyz/api/v1/exchanges
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
4bce333ccdb99befb9c92c317bcf2a29c8e202275aa71ebf1308b538f93ef864
Leaf
0x764b37d41cb772844123cfcb9d2cbe994e4d3439e365d33b8c34b160d4dbf687

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402stock.xyz/api/v1/exchanges"
    ]
  ],
  "name": "x402stock.xyz/api/v1/exchanges",
  "owner_address": "0x3070fbb3803819fb5bdfe9286fdc6325a877fa85",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
        "scheme": "exact"
      }
    ],
    "description": "Reference list of US equity exchanges and market centers with names, MICs, operating MICs, and SIP participant IDs. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-05-29T20:00:00.000Z",
              "count": 1,
              "exchanges": [
                {
                  "acronym": "AMEX",
                  "id": 1,
                  "mic": "XASE",
                  "name": "NYSE American, LLC",
                  "operating_mic": "XNYS",
                  "participant_id": "A",
                  "type": "exchange",
                  "url": "https://www.nyse.com/markets/nyse-american"
                }
              ],
              "source": "x402stock"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "additionalProperties": false,
                  "properties": {
                    "as_of": {
                      "type": "string"
                    },
                    "count": {
                      "type": "number"
                    },
                    "exchanges": {
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "acronym": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "id": {
                            "type": "number"
                          },
                          "mic": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "name": {
                            "type": "string"
                          },
                          "operating_mic": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "participant_id": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "type": {
                            "type": "string"
                          },
                          "url": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          }
                        },
                        "required": [
                          "id",
                          "type",
                          "name",
                          "acronym",
                          "mic",
                          "operating_mic",
                          "participant_id",
                          "url"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "source": {
                      "const": "x402stock",
                      "type": "string"
                    }
                  },
                  "required": [
                    "source",
                    "as_of",
                    "count",
                    "exchanges"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T06:26:30.748Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T06:26:30.56Z"
    },
    "resource": "https://x402stock.xyz/api/v1/exchanges",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Reference list of US equity exchanges and market centers with names, MICs, operating MICs, and SIP participant IDs. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402."
}

What the leaf hashes

{"body":"4bce333ccdb99befb9c92c317bcf2a29c8e202275aa71ebf1308b538f93ef864","id":127128,"kind":"listing","method":"baseline/1","observed_us":1793025637546229,"prev":null,"subject":"x402_bazaar:https://x402stock.xyz/api/v1/exchanges","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x764aeb2cd5bb96d7eb03b97bff8b66a48bde499c21fa99ae1a1c8c08b4913e58
  2. 0xbd59541092df3df5cd35e7ff2ce439c029c9986047310948e097b700b0e4c7fe
  3. 0x8ff1a1ef61f9445d39ac8382f5fb234be5ccef6a269323c2c4dff48f62544246
  4. 0x890740b70b483751f53b5f46ada0839e41938fd5afda5d0cd8883de2217b72d3
  5. 0x01f930f9a033648ebe42a2395111966ab44877079fe405b8c866be3cab5c239f
  6. 0x2066db79738da5cbd466042190936e525c25565c7588b79979beda49504d51a4
  7. 0x9ecb3cd9b74c8ffa7726b7de10ee97d1ec312226b252faa8df00ee50ec4c1668
  8. 0xf7d80048081e4c7e2b9ca6662544a57636c037f375bada0b455f56749bd262ed
  9. 0xc2422313ac6619bd32eae15f48b17cd8f95d2f3d1de81e39ad628d07c2d4051f
  10. 0x0e4e5a49876eb9d3620d41239a02b9ca5f630f9d96c45832d28ded515ead4cac
  11. 0x93bf58b59f9e2faa3bacdd73462869691f5329b6fe90d298d0df66b6273fb710
  12. 0x43ccc5fffcdb82bff6ecf4ac7157c905b45d2f0362e7f7fbe908de1250b9533c
  13. 0xdef3cab0b4070d8ad7f4f91288da4881d19789f131b1b353621df79df04a0617
  14. 0xc4fe2177880ea1b0e82b6fe4c270090fd0fbe5af3a42a8cbf6a6ba2fa35625f6
  15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
  16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
  17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON