Evidence row 117714

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://opendata402.com/v1/oecd
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 2353936757a857f4fe59bc9b525b29f4704241ae3d067fdf31ea348c66a13dee
Leaf: 0x2f73052a522761eff8cb8706eef811be23d3177a04a4fb5db105a4aab816db85

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://opendata402.com/v1/oecd"
    ]
  ],
  "name": "opendata402",
  "owner_address": "0x295aa6c5a3460a0f8755823c8ee7bbc7caf79fb1",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:8453",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:137",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:42161",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      }
    ],
    "description": "Any OECD dataset via the OECD SDMX API: give the dataflow (e.g. OECD.SDD.STES,DSD_STES@DF_CLI for leading indicators) and a series key with country codes (e.g. NLD........), and get the latest observations with dimension labels (max 500). Use it for international macro and social indicators across OECD countries. OECD data, CC BY 4.0 (third-party data excluded).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "flow": "OECD.SDD.STES,DSD_STES@DF_CLI",
              "key": "NLD........",
              "last": "6"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 6,
              "flow": "OECD.SDD.STES,DSD_STES@DF_CLI",
              "observations": [
                {
                  "Reference area": "Netherlands",
                  "Time period": "2026-09",
                  "value": 101.2581
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "flow": {
                      "description": "AGENCY,DATAFLOW[,VERSION].",
                      "pattern": "^[A-Za-z0-9_.@,]{5,80}$",
                      "type": "string"
                    },
                    "key": {
                      "description": "SDMX series key with dots; empty parts = all.",
                      "pattern": "^[A-Za-z0-9_.+]{0,120}$",
                      "type": "string"
                    },
                    "last": {
                      "description": "Latest observations per series (default 12).",
                      "pattern": "^([1-9]|[1-9][0-9])$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "flow"
                  ],
                  "type": "object"
                },
                "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": "2026-10-14T21:04:42.066Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-14T21:04:41.457Z"
    },
    "resource": "https://opendata402.com/v1/oecd",
    "serviceName": "opendata402",
    "tags": [
      "oecd",
      "statistics",
      "economics",
      "international",
      "sdmx"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Any OECD dataset via the OECD SDMX API: give the dataflow (e.g. OECD.SDD.STES,DSD_STES@DF_CLI for leading indicators) and a series key with country codes (e.g. NLD........), and get the latest observations with dimension labels (max 500). Use it for international macro and social indicators across OECD countries. OECD data, CC BY 4.0 (third-party data excluded)."
}

What the leaf hashes

{"body":"2353936757a857f4fe59bc9b525b29f4704241ae3d067fdf31ea348c66a13dee","id":117714,"kind":"listing","method":"baseline/1","observed_us":1793025611812166,"prev":null,"subject":"x402_bazaar:https://opendata402.com/v1/oecd","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON