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Evidence row 751568

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/brazil/central-bank
Recorded
Previous row
#548188
Body SHA-256
baae417aca2b8b2dcf5f88388a4c15ab357319a45d54ccbab53b1caf5a70df26
Leaf
0x4fc817c08a2fa004a6e2c4376bce47a67ac0b76c849dc79d996da796882362f7

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/brazil/central-bank"
    ]
  ],
  "name": "Saylor Innovations Data Desk",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:brazil-bcb",
          "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:datadesk:brazil-bcb",
          "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:datadesk:brazil-bcb",
          "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": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:datadesk:brazil-bcb",
          "reference": "9VparJhmwEMPZ1UsZeWxMYLcXwshYRKPh8v5Y3TVoFi",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpicmF6aWwtYmNiIiwicmVmZXJlbmNlIjoiOVZwYXJKaG13RU1QWjFVc1plV3hNWUxjWHdzaFlSS1BoOHY1WTNUVm9GaSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkzMTMyMDI4NDg3fQ.U3cvLAfJyD4XkxN-cIqmTlnqE4MG0eolPELwmglPGI8"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:datadesk:brazil-bcb",
          "reference": "7X865EJTSYqsMUm9HWTtwop3WC66wW1JMr7siLu4nknM",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpicmF6aWwtYmNiIiwicmVmZXJlbmNlIjoiN1g4NjVFSlRTWXFzTVVtOUhXVHR3b3AzV0M2NndXMUpNcjdzaUx1NG5rbk0iLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MzEzMjAyODQ4OH0.fFcFIFsWGLGtrhEj4J7PS8FaMdOVQlKdMhJFQDmFZp4"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "95943",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:datadesk:brazil-bcb",
          "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": "98911",
          "reference": "8QpaaEDQ5UwD9d8X4VWtPAs5DTRSsgLJdD8ykMLAp4ze",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpicmF6aWwtYmNiIiwicmVmZXJlbmNlIjoiOFFwYWFFRFE1VXdEOWQ4WDRWV3RQQXM1RFRSU3NnTEpkRDh5a01MQXA0emUiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTU5NDMsImV4cCI6MTc5MzEzMjAyODQ4OH0.9dlV5mkxgooQKXLUMC9tnt4Qs-yJuV2CKiCJMvMNH3k",
          "solUsdPrice": 101.1
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Brazil central bank time series - Selic rate, IPCA and IGP-M inflation, USD/BRL, EUR/BRL, CDI and unemployment from Banco Central SGS",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "count": "5",
              "series": "selic"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "description": "Selic target rate",
              "latest": {
                "date": "2026-11-04",
                "value": 13.75
              },
              "points": [
                {
                  "date": "2026-10-31",
                  "value": 13.75
                },
                {
                  "date": "2026-11-01",
                  "value": 13.75
                },
                {
                  "date": "2026-11-02",
                  "value": 13.75
                },
                {
                  "date": "2026-11-03",
                  "value": 13.75
                },
                {
                  "date": "2026-11-04",
                  "value": 13.75
                }
              ],
              "series": "selic",
              "sgs_code": 432,
              "source": "Banco Central do Brasil, SGS time series",
              "unit": "% per year"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "count": {
                      "description": "optional latest observations 1-60 (default 10)",
                      "type": "string"
                    },
                    "series": {
                      "description": "selic (default), selic-daily, ipca, igpm, usd-brl, eur-brl, cdi or unemployment",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "description": {
                      "description": "Short description",
                      "type": "string"
                    },
                    "latest": {
                      "description": "Most recent value or version",
                      "type": "object"
                    },
                    "points": {
                      "type": "array"
                    },
                    "series": {
                      "description": "Time series of values",
                      "type": "string"
                    },
                    "sgs_code": {
                      "description": "Sgs code",
                      "type": "number"
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": "string"
                    },
                    "unit": {
                      "description": "Unit of measure",
                      "type": "string"
                    }
                  },
                  "required": [
                    "series",
                    "latest"
                  ],
                  "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/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-27T20:11:48.518Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-27T20:11:47.787Z"
    },
    "resource": "https://saylorinnovations.com/api/brazil/central-bank",
    "serviceName": "Saylor Innovations Data Desk",
    "tags": [
      "selic rate brazil",
      "ipca inflation brazil",
      "usd brl exchange rate",
      "banco central do brasil api",
      "brazil interest rate"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Brazil central bank time series - Selic rate, IPCA and IGP-M inflation, USD/BRL, EUR/BRL, CDI and unemployment from Banco Central SGS"
}

What the leaf hashes

{"body":"baae417aca2b8b2dcf5f88388a4c15ab357319a45d54ccbab53b1caf5a70df26","id":751568,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178758001836,"prev":548188,"subject":"x402_bazaar:https://saylorinnovations.com/api/brazil/central-bank","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (231336 rows).

  1. 0x4fc7f0ab800480793ce79dbcb5f9783d1f4485b6d2fef6893c0323ec0b48349c
  2. 0xd9a147d14fc5c96603f26e238bffebedb0b6f8c8f3715055ad6c699a897f14dc
  3. 0x018e51e748939eebe63293fe6d1ea829870a849772a1ba3abd73ba86b6701edd
  4. 0xafe521310a3819d1c88d85d7f02bca28dc62810edf9d4de7e4eb9821cf43a41d
  5. 0xa4b756c8d983c3840c6f24db807de868695106978d6105a4c29ca2e1c3b44602
  6. 0x2b0ed319318c1f3aab4d5663186bb7a01a3adb2e3a582482840fc7b26978f4ce
  7. 0x5c68be525371aa820cc8576adf72c03e7781914adb87ece3072105386e9eb435
  8. 0x32d44990fbf0d64a5633fa011e7d5575546422d6c2d4ff0834c0df6c99059606
  9. 0x80bd887a9275b9fdebd58360df61d09eb8490f0de2fcc2046ee5a56a227f838c
  10. 0xb0c91442ec56139a8ed289ee68a2e4b3e9e8aec3cb5a0ff9b5e459c156eb63c6
  11. 0x9f17d22c3df9d51d59e532673e9619bfbeacdb015b48cce75c57dfdae7b37116
  12. 0x662c7e71e8ba4e546062900a226f33f4ce7ef3171d00ac2fa46d87dc7702d462
  13. 0x902a2dbf47c33b77a0326d8eee14fb4f6ce8a9c74f1c79c2695723137f2064af
  14. 0x8dce5117e7908d42b8abe04939e957eaffbae76d0f0a9d9ca7bb199e561aecf3
  15. 0xd12637e9c035a4c3a66d0f0436dfc7bf3f13da4d17ea045b647d9e9beef1ef11
  16. 0xa99a40fe210d675bb6ab72d4bb72ab40eb44ac345773c457fbe58e67a47b03df
  17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
  18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f
Day root
0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e
Chained
0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be
Published
On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae

How to check it · This row as JSON