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Evidence row 119735

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/evm/base/block/latest
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
a57e7b6f730960bfedef266802373d41aee148134149b16abf1e460678c29efc
Leaf
0x5015c308644f0624fc532c3bc05479eafd212f420313c948cbfb34f4c22c0d36

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/evm/base/block/latest"
    ]
  ],
  "name": "Saylor Innovations On-Chain Data",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:evm:block:base/block/late",
          "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:evm:block:base/block/late",
          "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:evm:block:base/block/late",
          "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": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:evm:block:base/block/late",
          "reference": "8SiJG2sxKpLZ79MY4zXFBGjMVBGGtHYH8YBH8SKqzmhJ",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6YmFzZS9ibG9jay9sYXRlc3QiLCJyZWZlcmVuY2UiOiI4U2lKRzJzeEtwTFo3OU1ZNHpYRkJHak1WQkdHdEhZSDhZQkg4U0txem1oSiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNTA3NzIxODI1fQ.IixQHBx6MIGWoMu1DfHzgGezpPLowSEsaRMzyQK79rM"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:evm:block:base/block/late",
          "reference": "Er5D3Wvb1m5CakcwN1JncKVaXf3hqvQoNfgEf1FJG5ke",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6YmFzZS9ibG9jay9sYXRlc3QiLCJyZWZlcmVuY2UiOiJFcjVEM1d2YjFtNUNha2N3TjFKbmNLVmFYZjNocXZRb05mZ0VmMUZKRzVrZSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNTA3NzIxODI1fQ.IpKmwY-1xiPC-BYj9nbVwUi-Suneq1RQqLKhqoOZ22U"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "90282",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:evm:block:base/block/late",
          "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": "93075",
          "reference": "G7t4jDWUv1PfCxsinqZD8hrRkSDCWBA2ZBBjfQJ9CPSg",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6YmFzZS9ibG9jay9sYXRlc3QiLCJyZWZlcmVuY2UiOiJHN3Q0akRXVXYxUGZDeHNpbnFaRDhoclJrU0RDV0JBMlpCQmpmUUo5Q1BTZyIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5MDI4MiwiZXhwIjoxNzkyNTA3NzIxODI1fQ.pu-XSsNlehVSFLKdzMVOI1cq6vbTr00U5oAfzCwR6oY",
          "solUsdPrice": 107.44
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Base block by number or latest - hash, time, transaction count, gas used, base fee and miner",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "base_fee_gwei": 0.005,
              "chain": "base",
              "gas_limit": 150000000,
              "gas_used": 41000000,
              "hash": "0xcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd",
              "miner": "0x4200000000000000000000000000000000000011",
              "number": 51738756,
              "time": "2026-09-24T16:53:20.000Z",
              "timestamp": 1790240000,
              "tx_count": 212
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "base_fee_gwei": {
                      "description": "Base fee per gas in gwei",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "chain": {
                      "description": "Blockchain the data is for",
                      "type": "string"
                    },
                    "gas_limit": {
                      "description": "Gas limit",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "gas_used": {
                      "description": "Gas consumed",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "hash": {
                      "description": "Hash of the item",
                      "type": "string"
                    },
                    "miner": {
                      "description": "Address of the block producer",
                      "type": "string"
                    },
                    "number": {
                      "description": "Number that was looked up",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "parent_hash": {
                      "description": "Hash of the parent block",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "time": {
                      "description": "Time",
                      "type": "string"
                    },
                    "timestamp": {
                      "description": "Time of the record",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "tx_count": {
                      "description": "Number of tx",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "tx_hashes": {
                      "description": "Transaction hashes in the block",
                      "type": [
                        "array",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "chain",
                    "number",
                    "hash"
                  ],
                  "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": "2026-10-20T14:46:41.882Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-20T14:46:41.682Z"
    },
    "resource": "https://saylorinnovations.com/api/evm/base/block/latest",
    "serviceName": "Saylor Innovations On-Chain Data",
    "tags": [
      "evm",
      "base",
      "block",
      "onchain"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Base block by number or latest - hash, time, transaction count, gas used, base fee and miner"
}

What the leaf hashes

{"body":"a57e7b6f730960bfedef266802373d41aee148134149b16abf1e460678c29efc","id":119735,"kind":"listing","method":"baseline/1","observed_us":1793025616428004,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/evm/base/block/latest","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. 0x50160c084888e1666f9dc3f3c0e2706a53833eeb1049c9094a08343dfef2a00e
  2. 0x8395380ef47a6fd837bb441539eee8602330d506c4320b5fb5d5502706fcdcf3
  3. 0xbdf336882521b76e27f20c3effd3edf5112799c1f9f39f858416b53d5c5f7ef2
  4. 0xd38981a666faeb97c6841951c3ecb9ae159f7a3fe9aac49ac945386da8fac407
  5. 0x9a0d88f20bc44a69ab800b1971ae240c34d84e078a495d788bc8c647c15dcbd8
  6. 0x59a040be908dc305e02643f4a21119e609e14594ba4b85a3b87cb492a670769a
  7. 0x76e329358968fe82c1751b615c06a5d0113389bac8a2233c3acf162f9217f265
  8. 0x42386d1110de6d881e18308c50441e045d295f2c4e94e9bf2029f7a359e8703f
  9. 0x88c94c22ce2a6c0cd716bfe97ceac651fc60ee0aba40dbb075d713b366b543b1
  10. 0x62c975a2c751182cb374d19834d999a49e29a6df9ba4accfe84ac8b4b21dc54a
  11. 0xe281245a49847bca87f4c96f8da0284eeef688f3f597a62adb2d9089f4385e55
  12. 0xecaf47ba75097c34f2d3c4d62539dace0db8b484bf08941a9259e2d1e8ccea77
  13. 0xf7d2cf278e5d2768b8bdb70730c378877cf7165d8efcbec8bcd3282fdc50d177
  14. 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
  15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
  16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
  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