Evidence row 68130

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.predictionmarketdata.io/prediction-markets"
    ]
  ],
  "name": "api.predictionmarketdata.io/prediction-markets",
  "owner_address": "0x995c0abdcd2ad76548e5f7deb54d32549b2b781f",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x995c0abdcd2ad76548e5f7deb54d32549b2b781f",
        "scheme": "exact"
      }
    ],
    "description": "Search, filter, and sort prediction markets across exchanges.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": "10",
              "search": "trump",
              "status": "Open"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "pagination": {
                "hasMore": true,
                "limit": 2,
                "nextOffset": 2,
                "offset": 0,
                "total": 30834
              },
              "predictionMarkets": [
                {
                  "end_ts": "2026-06-23T00:30:00Z",
                  "entity_code": "KALSHI",
                  "entity_event_category": "Sports",
                  "event_name": "Game 3: San Antonio at New York",
                  "event_outcome_type": "Multi",
                  "event_outcomes": [
                    {
                      "market_id": "KXNBAGAME-26JUN08SASNYK-NYK_yes.KALSHI",
                      "outcome_name": "New York",
                      "percentage": 0.54,
                      "status": "Open",
                      "volume": 7872349.97
                    }
                  ],
                  "event_ticker": "KXNBAGAME-26JUN08SASNYK.KALSHI",
                  "is_series": true,
                  "pmcs_categories": [
                    "SPT",
                    "BSKTBL",
                    "NBA"
                  ]
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "entity_code": {
                      "description": "Exchange filter. Common: KALSHI, POLYMARK, GMNI.",
                      "type": "string"
                    },
                    "event_ticker": {
                      "description": "Exact event identifier (from a prior /prediction-markets response).",
                      "type": "string"
                    },
                    "limit": {
                      "description": "Maximum number of events to return.",
                      "type": "string"
                    },
                    "offset": {
                      "description": "Zero-based pagination offset.",
                      "type": "string"
                    },
                    "open_interest_max": {
                      "description": "Maximum open interest (USD).",
                      "type": "string"
                    },
                    "open_interest_min": {
                      "description": "Minimum open interest (USD).",
                      "type": "string"
                    },
                    "outcome_type": {
                      "description": "Outcome model. Common: Binary, Multi.",
                      "type": "string"
                    },
                    "pmcs_category": {
                      "description": "Top-level PMCS category code from /prediction-markets/taxonomy.",
                      "type": "string"
                    },
                    "pmcs_supersector": {
                      "description": "PMCS supersector code from /prediction-markets/taxonomy.",
                      "type": "string"
                    },
                    "queryCriteria": {
                      "description": "Legacy advanced query field; prefer search.",
                      "type": "string"
                    },
                    "search": {
                      "description": "Free-text query across market and event names.",
                      "type": "string"
                    },
                    "searchString": {
                      "description": "Legacy alias for search; prefer search.",
                      "type": "string"
                    },
                    "sort_by": {
                      "description": "Sort key, e.g. total_volume_24hr, total_open_interest_usd, end_ts.",
                      "type": "string"
                    },
                    "sort_dir": {
                      "description": "Sort direction: asc or desc.",
                      "type": "string"
                    },
                    "status": {
                      "description": "Market status. Open is the safest default.",
                      "type": "string"
                    },
                    "trade_count_max": {
                      "description": "Maximum trade count.",
                      "type": "string"
                    },
                    "trade_count_min": {
                      "description": "Minimum trade count.",
                      "type": "string"
                    },
                    "volume_1hr_max": {
                      "description": "Maximum 1-hour volume filter.",
                      "type": "string"
                    },
                    "volume_1hr_min": {
                      "description": "Minimum 1-hour volume filter.",
                      "type": "string"
                    },
                    "volume_max": {
                      "description": "Maximum total volume filter.",
                      "type": "string"
                    },
                    "volume_min": {
                      "description": "Minimum total volume filter.",
                      "type": "string"
                    }
                  },
                  "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": "2026-10-24T07:01:45.513Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-24T07:01:45.31Z"
    },
    "resource": "https://api.predictionmarketdata.io/prediction-markets",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Search, filter, and sort prediction markets across exchanges."
}

What the leaf hashes

{"body":"616116f3ef1b632fda772569ee762ad0d41808ec4284f08390cb648a69fb2e8f","id":68130,"kind":"listing","method":"baseline/1","observed_us":1793025466215677,"prev":null,"subject":"x402_bazaar:https://api.predictionmarketdata.io/prediction-markets","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x8c6b8f671976a97f1d0bcf9b31327212428d1ecd933025e4fd75383395998fd7
2. 0x5973d940079ac1eaba3365feeb4665fc72a0f4e74e71a1bf0abb848d41517af3
3. 0xe7443a1f26214bf79af4cedd5475201ee5a041c1243f377a6230cd04171f7d90
4. 0x71908dd2e67250e829251ecfb14d7b9eb059659ee8cf874f741bdd39e80e3da2
5. 0x589454439bfc3144c9b9952c5c4889f2712cf58e86388c64349ad6731fc0ac45
6. 0x05b226843ea9aa3ad9b39ae398f9223ca04c7b2039c668188a55710302c9add1
7. 0x0a13420ec25b22ba4fa13d2baefacfdf593a67c929f268ace3fa389a65491c26
8. 0x8b3fde4124af425c943fa9ce60550ca5e90b3c1ef9f0a990c6b65886510b1d92
9. 0xea97c8fa4c994c0b8944bb77f3b5cce1e38a71acc60fbf0903c000db8eac1aa6
10. 0xf37a2a30f04ffcfc24f46f4209ea65386afe8bdf9c467b02689e621d61bebaf5
11. 0xc0c39d9d8be0b7d600d3badab7754e326243b0d4eb60c4b5cd965d7d764d1d04
12. 0xfc86b2282cb8f91e68280efe01f3c50453c94fae2ef04af1a75d4b05d0af2b8f
13. 0xd5ec7ffaecac790d8adfa0620b0a5494758f862e3090b49e556a6ecbad2f0782
14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae