Evidence row 1262201

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://kr-x402-mvp.kgy5612.workers.dev/crypto/prediction-markets"
    ]
  ],
  "name": "Crypto Microdata for Agents",
  "owner_address": "0xe4be4d0bd82d8e68203deff81f79ede0529f2617",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xe4be4d0bd82d8e68203deff81f79ede0529f2617",
        "scheme": "exact"
      }
    ],
    "description": "Live prediction-market odds (Polymarket) as clean implied probabilities, so your agent can price events: q=bitcoin|ethereum|solana|fed|election|any keyword (default crypto), limit=1-20 events (default 8), markets=1-20 per event (default 6). Returns events sorted by 24h volume, each with markets [{question, outcome_label, yes_prob, no_prob, best_bid, best_ask, change_1d, volume_24h, liquidity, end_date, url}], contested markets (5-95%) first; plus top_contested (the most-traded genuinely...",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": 8,
              "q": "bitcoin"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "events": [
                {
                  "end_date": "2026-10-30T16:00:00Z",
                  "liquidity": 610000,
                  "markets": [
                    {
                      "best_ask": 0.63,
                      "best_bid": 0.61,
                      "change_1d": 0.05,
                      "contested": true,
                      "liquidity": 50000,
                      "no_prob": 0.38,
                      "outcome_label": "80,000",
                      "question": "Will the price of Bitcoin be above $80,000 on October 30?",
                      "volume_24h": 41000,
                      "yes_prob": 0.62
                    }
                  ],
                  "title": "Bitcoin above ___ on October 30?",
                  "url": "https://polymarket.com/event/bitcoin-above-on-october-30",
                  "volume_24h": 281751.88
                }
              ],
              "n_events": 1,
              "q": "bitcoin",
              "source": "polymarket",
              "top_contested": {
                "event": "Bitcoin above ___ on October 30?",
                "question": "Will the price of Bitcoin be above $80,000 on October 30?",
                "volume_24h": 41000,
                "yes_prob": 0.62
              },
              "updated_at": "2026-10-29T15:30:00Z"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "limit": {
                      "description": "Events to return (default 8)",
                      "maximum": 20,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "markets": {
                      "description": "Markets per event (default 6)",
                      "maximum": 20,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "q": {
                      "description": "Search keyword (default crypto)",
                      "examples": [
                        "bitcoin",
                        "ethereum",
                        "fed rate",
                        "election"
                      ],
                      "maxLength": 80,
                      "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": "2026-10-30T01:32:23.883Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-30T01:32:23.749Z"
    },
    "resource": "https://kr-x402-mvp.kgy5612.workers.dev/crypto/prediction-markets",
    "serviceName": "Crypto Microdata for Agents",
    "tags": [
      "prediction-markets",
      "polymarket",
      "odds",
      "implied-probability",
      "event-odds"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Live prediction-market odds (Polymarket) as clean implied probabilities, so your agent can price events: q=bitcoin|ethereum|solana|fed|election|any keyword (default crypto), limit=1-20 events (default 8), markets=1-20 per event (default 6). Returns events sorted by 24h volume, each with markets [{question, outcome_label, yes_prob, no_prob, best_bid, best_ask, change_1d, volume_24h, liquidity, end_date, url}], contested markets (5-95%) first; plus top_contested (the most-traded genuinely..."
}

What the leaf hashes

{"body":"512dfdbd91c036716ad24db1fad6369977dd66d4801f20bd466a9a4eb8f5afd7","id":1262201,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385520569204,"prev":null,"subject":"x402_bazaar:https://kr-x402-mvp.kgy5612.workers.dev/crypto/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 2026-10-30 (243099 rows).

1. 0x964a14f44506d0d0f6eb8e1f6ec6bbb95391bbaad7652acba9e19ce5e1cc0d4d
2. 0xe2f7e5fc1baf81be315e3b29f0d8ac2a837cfe7d6fb3b4fbf8991867053f4fbd
3. 0x0fc93d2ee60d71e0416fbfbcc90c6337692d721bc3a17a517395d35e797a3813
4. 0xc816a411ec9716b9bc23fa4da9700da3fa4eeb87483569fb076b224aa174fbd8
5. 0x6164e80bc1a3771007f9a2a82a315981c5490bd1699af3f723346f0343f07e03
6. 0x7665c547e78741ed979fdc408caa6e9b9b2369c744b5f419adb4d848db00b863
7. 0xc79cdf01c72a72d46b637077ee62c17e139effe7b8e5f9db789ff2000acf17c7
8. 0x582353193fb38a5d4fd0b34fda00c44b53fa5c006ba936d8a751cdd0d3beda1e
9. 0x6f8299d92494b8eb250a93d50a792ea7fb2496c4bf0fc283dbb24f1234b4e48f
10. 0xc7c0f06b45aa3b7d77b23816bc3ff95f6f478216cbc22cb79ef7dfe8a289e465
11. 0x8aa3e1f2722cd877d11225e31a12f181990ae112e97f00b79e378d52bc3bb5d9
12. 0xf9b7ea19cd8b9aaaf832b35ddb7bf2e52aeb54c6362fa951144219d07856c660
13. 0x7d1bf48d5d64dd078f722c5d54a57afd7c7264c947c587f6fbc3d1add4080eb7
14. 0x7db51cf84d41f2e07ef904fc1b6aeb666b2a2762de18ed12ac42d5938eb28dc2
15. 0xe722b5213af778d8f1621b8b0b61f957ac8d8bb43a780aed8989bfc357e5bc58
16. 0x835211170e79bdce1a823ec914e3532e128f77751e9074286da35091b0200284
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861