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Evidence row 120502

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/predictions/trending
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
e9695f253f34f7b8ee153d00d33570188ab5e93752ac39065a31a8be979c9e25
Leaf
0x8874788c05495906e3386998d867b1250cf69650b8eb5b15be625dbd4fcda4f0

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/predictions/trending"
    ]
  ],
  "name": "Saylor Innovations Prediction Ma",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:predictions:trending:tren",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:predictions:trending:tren",
          "name": "USD Coin",
          "note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:137",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:predictions:trending:tren",
          "name": "USD Coin",
          "note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:42161",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
          "memo": "saylor:predictions:trending:tren",
          "reference": "FWLBBFJ3ovVbbiYfjtJS6enBjvfUgQKPkf4jkWbBkt4i",
          "session": "eyJhcnRpY2xlSWQiOiJwcmVkaWN0aW9uczp0cmVuZGluZzp0cmVuZGluZyIsInJlZmVyZW5jZSI6IkZXTEJCRkozb3ZWYmJpWWZqdEpTNmVuQmp2ZlVnUUtQa2Y0amtXYkJrdDRpIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0Nzc0MDc3MTh9.u0DlWvunKorTYwl6qUEP3BF8IA3Lefv4F7k1_JClsU4"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
          "memo": "saylor:predictions:trending:tren",
          "reference": "EV1cxt8S1LTmj2YMb96qPqfJigTaoQeRoErJpx4h5npZ",
          "session": "eyJhcnRpY2xlSWQiOiJwcmVkaWN0aW9uczp0cmVuZGluZzp0cmVuZGluZyIsInJlZmVyZW5jZSI6IkVWMWN4dDhTMUxUbWoyWU1iOTZxUHFmSmlnVGFvUWVSb0VySnB4NGg1bnBaIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0Nzc0MDc3MTh9.WuWPKXfzk2NtJKSh7WLb9Pxa8G-UxR2g9kvRVgUPw5Y"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92937",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:predictions:trending:tren",
          "native": true,
          "note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
          "quotedLamports": "95812",
          "reference": "8toA8i9gAzA6WTkF8vveHKi9pAJj3VpZGZzPRjdEwVSq",
          "session": "eyJhcnRpY2xlSWQiOiJwcmVkaWN0aW9uczp0cmVuZGluZzp0cmVuZGluZyIsInJlZmVyZW5jZSI6Ijh0b0E4aTlnQXpBNldUa0Y4dnZlSEtpOXBBSmozVnBaR1p6UFJqZEV3VlNxIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkyOTM3LCJleHAiOjE3OTI0Nzc0MDc3MTh9.Ol0c92-wWILFT9F7ZScgXwjDm6s7ETyplZF39VAV1nc",
          "solUsdPrice": 104.37
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Trending Polymarket and Kalshi prediction markets now - odds, 24h volume and liquidity",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": "10"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 1,
              "events": [
                {
                  "category": null,
                  "closes_at": "2026-09-30T23:59:00Z",
                  "id": "what-price-will-bitcoin-hit-in-september-2026",
                  "markets": [
                    {
                      "best_ask": 0.08,
                      "best_bid": 0.06,
                      "liquidity_usd": 45000,
                      "outcomes": [
                        {
                          "name": "Yes",
                          "probability": 0.07
                        },
                        {
                          "name": "No",
                          "probability": 0.93
                        }
                      ],
                      "question": "Will Bitcoin reach $100,000 in September?",
                      "volume_24h_usd": 120000
                    }
                  ],
                  "platform": "polymarket",
                  "title": "What price will Bitcoin hit in September?",
                  "url": "https://polymarket.com/event/what-price-will-bitcoin-hit-in-september-2026",
                  "volume_24h_usd": 891236
                }
              ],
              "generated_at": "2026-09-24T19:30:00.000Z"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "limit": {
                      "description": "optional 1-25 events, default 10 (query)",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "count": {
                      "description": "Number of items returned",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "events": {
                      "description": "List of events",
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "generated_at": {
                      "description": "Time this response was generated (UTC)",
                      "type": "string"
                    },
                    "platform": {
                      "description": "Platform name",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "sources_failed": {
                      "description": "Data sources that did not answer; empty when all answered",
                      "type": [
                        "array",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "generated_at",
                    "events"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1790235422/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-20T06:21:27.763Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-20T06:21:27.411Z"
    },
    "resource": "https://saylorinnovations.com/api/predictions/trending",
    "serviceName": "Saylor Innovations Prediction Ma",
    "tags": [
      "prediction-markets",
      "polymarket",
      "kalshi",
      "trending"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Trending Polymarket and Kalshi prediction markets now - odds, 24h volume and liquidity"
}

What the leaf hashes

{"body":"e9695f253f34f7b8ee153d00d33570188ab5e93752ac39065a31a8be979c9e25","id":120502,"kind":"listing","method":"baseline/1","observed_us":1793025618157676,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/predictions/trending","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. 0x8873fcd92f1f5e3ec9f96ed43fd5149afcc3777fae522c0291872cce14806317
  2. 0xb719758075105fa6cd34e8669d27f2db0da158ee85e3988db166120227cb48d9
  3. 0x006329657d7ccae72154a78ed422e787a1bb770fa78a51f19d5240dc432ecdca
  4. 0x616e64f03f5db99837be100e363af797395903593212316dbd2b481bf59af164
  5. 0xa6731cfb1a7c0885b403af0e195c3e1a266674ae8323225e9f03d367f3540f63
  6. 0xc93ba775783f458cf1777786a370c205cdebdce0d929f1ba4e416ae8bcf3e075
  7. 0xb8cf217a4d9153b52839d79e2ae1e8d9c04c208b07701216b5c65516402487a8
  8. 0x608f9eb3ff9331c6286b7ec283ea452c9ef2899fd54b904e8ca1eec0959c09e6
  9. 0x14c6f091b2b6d3e423db7bdf1dd24bedab7abb68b4deade5ed6b4cad54a8d8cf
  10. 0xb7586af46bfddb2ee3fc0eb75ae3d787275fe8ca92d7e23797abbeb88c292ae9
  11. 0x8c20bf7d4b3dd52508d554a379143f96b80b2bc0af227c0b1ce2e34d99c6430b
  12. 0x7bf2d426bb827b94d7608055662cf2e3f09791e1a4c2c6bd606c0a9e89b18e59
  13. 0x49d11be052a4c069b10250aaba214f566b3f2e5aaa7a98e82ccc6a71c0e801a0
  14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
  15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
  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