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Evidence row 68381

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://api.seerium.xyz/v1/prediction/cross-venue-disagreement
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
6a9ea9e3bf64f4fb949339ec21c00fe746a048507f023899a4eb81deb093ad76
Leaf
0x5e256671b3915e7bbd80affebd7755db1ff9fc93c0f06e47d8bc49405e9c660b

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.seerium.xyz/v1/prediction/cross-venue-disagreement"
    ]
  ],
  "name": "api.seerium.xyz/v1/prediction/cross-venue-disagreement",
  "owner_address": "0x81832eede3a4ad96cb3d7ca09977636d912fd3d5",
  "raw": {
    "accepts": [
      {
        "amount": "100000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x81832eEDe3a4ad96CB3D7cA09977636D912fd3D5",
        "scheme": "exact"
      },
      {
        "amount": "100000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "2h752kAbb9z1jpdSzqMEYg9JHv6TPJ6T2BfAJMyjLFtZ",
        "scheme": "exact"
      }
    ],
    "description": "Cross-venue prediction market disagreement API for Polymarket, Kalshi, and Gemini. Finds active related markets where venues price the same YES or NO outcome differently, with match confidence, price gap, liquidity, volume, and market identifiers.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "includeIndicative": true,
              "limit": 25,
              "minGap": 0.01,
              "minMatchConfidence": 0.7,
              "sources": "polymarket,kalshi,gemini"
            },
            "type": "http"
          },
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              "data": {
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                  "limit": 25,
                  "minGap": 0.01,
                  "minMatchConfidence": 0.7,
                  "sources": [
                    "polymarket",
                    "kalshi",
                    "gemini"
                  ]
                },
                "groups": 42,
                "returned": 1,
                "rows": [
                  {
                    "gap": 0.1,
                    "gapPct": 10,
                    "higher": {
                      "conditionId": "KXBTC-26MAY31-B100000",
                      "endDateIso": "2026-05-31T20:00:00.000Z",
                      "eventSlug": "bitcoin-price-may-31-2026",
                      "eventTitle": "Bitcoin price on May 31, 2026",
                      "indicative": true,
                      "lastPrice": 0.5,
                      "liquidity": 12800,
                      "marketSlug": "kxbtc-26may31-b100000",
                      "marketTicker": "KXBTC-26MAY31-B100000",
                      "noAsk": 0.51,
                      "noBid": 0.49,
                      "noPrice": 0.5,
                      "price": 0.5,
                      "question": "Will Bitcoin be above $100,000 on May 31, 2026?",
                      "seriesSlug": "bitcoin",
                      "seriesTicker": "KXBTC",
                      "source": "kalshi",
                      "sourceUpdatedAt": "2026-05-31T15:56:00.000Z",
                      "volume": 193200,
                      "volume24h": 28450,
                      "yesAsk": 0.51,
                      "yesBid": 0.49,
                      "yesPrice": 0.5
                    },
                    "id": "disagreement_example",
                    "lower": {
                      "conditionId": "0xexample-poly",
                      "endDateIso": "2026-05-31T20:00:00.000Z",
                      "eventSlug": "bitcoin-price-may-31-2026",
                      "eventTitle": "Bitcoin price on May 31, 2026",
                      "indicative": false,
                      "lastPrice": 0.4,
                      "liquidity": 9400,
                      "marketSlug": "will-bitcoin-be-above-100000-on-may-31-2026",
                      "marketTicker": null,
                      "noAsk": 0.61,
                      "noBid": 0.59,
                      "noPrice": 0.6,
                      "price": 0.4,
                      "question": "Will Bitcoin be above $100,000 on May 31, 2026?",
                      "seriesSlug": "bitcoin",
                      "seriesTicker": null,
                      "source": "polymarket",
                      "sourceUpdatedAt": "2026-05-31T15:55:00.000Z",
                      "volume": 129300,
                      "volume24h": 18450,
                      "yesAsk": 0.41,
                      "yesBid": 0.39,
                      "yesPrice": 0.4
                    },
                    "markets": [
                      {
                        "conditionId": "0xexample-poly",
                        "endDateIso": "2026-05-31T20:00:00.000Z",
                        "eventSlug": "bitcoin-price-may-31-2026",
                        "eventTitle": "Bitcoin price on May 31, 2026",
                        "indicative": false,
                        "lastPrice": 0.4,
                        "liquidity": 9400,
                        "marketSlug": "will-bitcoin-be-above-100000-on-may-31-2026",
                        "marketTicker": null,
                        "noAsk": 0.61,
                        "noBid": 0.59,
                        "noPrice": 0.6,
                        "price": 0.4,
                        "question": "Will Bitcoin be above $100,000 on May 31, 2026?",
                        "seriesSlug": "bitcoin",
                        "seriesTicker": null,
                        "source": "polymarket",
                        "sourceUpdatedAt": "2026-05-31T15:55:00.000Z",
                        "volume": 129300,
                        "volume24h": 18450,
                        "yesAsk": 0.41,
                        "yesBid": 0.39,
                        "yesPrice": 0.4
                      },
                      {
                        "conditionId": "KXBTC-26MAY31-B100000",
                        "endDateIso": "2026-05-31T20:00:00.000Z",
                        "eventSlug": "bitcoin-price-may-31-2026",
                        "eventTitle": "Bitcoin price on May 31, 2026",
                        "indicative": true,
                        "lastPrice": 0.5,
                        "liquidity": 12800,
                        "marketSlug": "kxbtc-26may31-b100000",
                        "marketTicker": "KXBTC-26MAY31-B100000",
                        "noAsk": 0.51,
                        "noBid": 0.49,
                        "noPrice": 0.5,
                        "price": 0.5,
                        "question": "Will Bitcoin be above $100,000 on May 31, 2026?",
                        "seriesSlug": "bitcoin",
                        "seriesTicker": "KXBTC",
                        "source": "kalshi",
                        "sourceUpdatedAt": "2026-05-31T15:56:00.000Z",
                        "volume": 193200,
                        "volume24h": 28450,
                        "yesAsk": 0.51,
                        "yesBid": 0.49,
                        "yesPrice": 0.5
                      }
                    ],
                    "matchConfidence": 0.9,
                    "matchType": "strong",
                    "matchedOn": {
                      "dateKey": "2026-05-31",
                      "directionKey": "above",
                      "eventKey": "bitcoin price on may 31 2026",
                      "numericKey": "100000|31|2026",
                      "subjectKey": "will bitcoin be above 100000 on may 31 2026",
                      "type": "strong"
                    },
                    "minutesUntilEnd": 240,
                    "outcome": "yes",
                    "rationale": "kalshi prices YES 10 points above polymarket on a strong cross-venue match.",
                    "sources": [
                      "polymarket",
                      "kalshi"
                    ],
                    "topic": "Bitcoin price on May 31, 2026: Will Bitcoin be above $100,000 on May 31, 2026?",
                    "totalLiquidity": 22200,
                    "totalVolume24h": 46900
                  }
                ],
                "sourceCounts": {
                  "gemini": 3,
                  "kalshi": 4,
                  "polymarket": 5
                },
                "sourceUpdatedAt": {
                  "gemini": "2026-05-31T15:54:30.000Z",
                  "kalshi": "2026-05-31T15:56:00.000Z",
                  "polymarket": "2026-05-31T15:55:00.000Z"
                },
                "timestamp": 1760000000000,
                "totalCandidates": 14,
                "warnings": []
              },
              "meta": {
                "freshnessMs": 30000,
                "generatedAt": "2026-03-25T12:00:00.000Z",
                "requestId": "req_example_123",
                "updatedAt": "2026-03-25T11:59:30.000Z"
              },
              "product": {
                "accepts": [
                  {
                    "network": "eip155:8453",
                    "payTo": "0x81832eEDe3a4ad96CB3D7cA09977636D912fd3D5",
                    "price": "$0.1000",
                    "scheme": "exact"
                  },
                  {
                    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
                    "payTo": "2h752kAbb9z1jpdSzqMEYg9JHv6TPJ6T2BfAJMyjLFtZ",
                    "price": "$0.1000",
                    "scheme": "exact"
                  }
                ],
                "id": "prediction-cross-venue-disagreement",
                "method": "GET",
                "name": "Cross-Venue Prediction Market Disagreement API",
                "networks": [
                  "eip155:8453",
                  "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
                ],
                "path": "/v1/prediction/cross-venue-disagreement",
                "price": "$0.1000"
              },
              "service": "seerium-x402-api"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "includeIndicative": {
                      "description": "Optional flag to include indicative price-only markets. Defaults to true.",
                      "type": "boolean"
                    },
                    "limit": {
                      "description": "Optional maximum disagreement rows to return. Defaults to 25.",
                      "maximum": 100,
                      "minimum": 1,
                      "type": "number"
                    },
                    "minGap": {
                      "description": "Optional minimum price gap. Use 0.01 or 1 for one percentage point. Defaults to 0.01.",
                      "maximum": 1,
                      "minimum": 0,
                      "type": "number"
                    },
                    "minMatchConfidence": {
                      "description": "Optional minimum market match confidence. Use 0-1 or 0-100. Defaults to 0.7.",
                      "maximum": 1,
                      "minimum": 0,
                      "type": "number"
                    },
                    "sources": {
                      "description": "Optional comma-separated venue filter: polymarket, kalshi, gemini. Defaults to all.",
                      "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": "2026-10-08T06:09:39.593Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-08T06:09:39.465Z"
    },
    "resource": "https://api.seerium.xyz/v1/prediction/cross-venue-disagreement",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Cross-venue prediction market disagreement API for Polymarket, Kalshi, and Gemini. Finds active related markets where venues price the same YES or NO outcome differently, with match confidence, price gap, liquidity, volume, and market identifiers."
}

What the leaf hashes

{"body":"6a9ea9e3bf64f4fb949339ec21c00fe746a048507f023899a4eb81deb093ad76","id":68381,"kind":"listing","method":"baseline/1","observed_us":1793025466484298,"prev":null,"subject":"x402_bazaar:https://api.seerium.xyz/v1/prediction/cross-venue-disagreement","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. 0x5e25ae07f1ae6ad663d9cead6a511d63d018287018684c4cf27997e63a2c2054
  2. 0xc94577320459099dff3b62820b2eb0f68ff227f553910225b55a424567d1a839
  3. 0xc28a2e453ea9eb3405e55aa03052b30a874298c67e67cccb07cb44b462e07cf9
  4. 0xb25beff682a07d2e4d9659c197ccd1322b7cc68e8a80816db9476f4eeece0100
  5. 0xc4d2cabcd5873998a1012c8582fdc15e53989a7aec78b430dda619d61beb7fa4
  6. 0xf42193a65c08cda49d32fe82e8f8a2450c50fcd8c09f7f69b1de4fad344e027a
  7. 0x318eed04f107d4596fc88d2aca5ee0629785c1295402408e4a8804feb970160c
  8. 0x896dfd173b0926175477f68a49e00dc936ab99093abbf90dfb3bd383ffeba991
  9. 0xc504c0f24b307b02539f1467182646fd1beff10c4bc239f6f8ec47f9ae7ba153
  10. 0xe78ab134303979f2a6edb2decbe995dc0bb11a3e542ac7007d6833ae50028729
  11. 0x49cc8f2035ca48165d187499d4442647d0afe9d3c61547728b03e4a0494752eb
  12. 0x5ab25c2fdf4695beeefb0726a5fc73e189b68f8d9fb2a3f6321ff7223b166fdd
  13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
  14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
  15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
  16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON