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Evidence row 548188

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/brazil/central-bank
Recorded
Previous row
#119417
Body SHA-256
99131454fd10c642e68fe26e54e374a87950299add4459e7563c31c7bf8629f4
Leaf
0x89524bcae6856a18a15114d688f58a4873956b39d7b120253f58b0b6a59a6f6e

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": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-20T05:46:22.763Z"
    },
    "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":"99131454fd10c642e68fe26e54e374a87950299add4459e7563c31c7bf8629f4","id":548188,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133281507065,"prev":119417,"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 (273461 rows).

  1. 0x895262ed38aa4fb7542bcb2a2ee2900d27aa4d9984f48a640b384c0823d56d02
  2. 0xf8150f5a2194fc34791d3a86191a0fb2ace094aa732d5117c248cd1f73a4e567
  3. 0x5bf9947a5dcc80e3b028561acb273fbb4c346c2e88e7a10f1f1b02ffda99e509
  4. 0x19f6c099ac9c6bceebbc720ec1da5c66da780873385b51778c191270f4b38bf2
  5. 0x4dbcc0f62be881455fc1b719419c46594d68c207248dbd9fd372ad8b444173fb
  6. 0xe2de171dcce2fa6635ec6478243be185137a62e693341c50998a5e6f30d019a9
  7. 0x6a67f0de5b64ad5a0ba525ae4baab006fa193c65e0b424af7065b150db620308
  8. 0x41c5644e00a8e5ea9faefbf4ef309c31ffbff2849fd02cc16100e691b6ef61b2
  9. 0xe4858aba1a4e044dc3b2a1021d162c4504031d7908c535efb975c385f5394d19
  10. 0x74b456622b05e6bd0b4cc5e19d26f3a5df384097a0fcf42f4c8fc6f450f93956
  11. 0xdd2d5eb9439a8e113d9cd2e4e8f0db73acb9a788d06262344864a0cbb291f3ae
  12. 0x30c799f301803795a41119ff9181a1ecb65705ab464b7ef061de2b33772eca73
  13. 0x6251e2be57e8d16b82579481d181c265d75096882014489550b74a728741f2f1
  14. 0x4964f0806efde5ed25f60da2b45d78cd2e0f07d67e64aad2822f6016ad973c47
  15. 0x3c500ec3d3edf0c74b87a6ca8fcd77656bfbe03db3d478bd0c184d0c88839c6b
  16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
  17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
  18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
  19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
Day root
0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
Chained
0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
Published
On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4

How to check it · This row as JSON