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Evidence row 119761

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/evm/ethereum/block/latest
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
50b873c8cda5af76166655011da5ae3053feea439d6948f83fa2cf1c7adadd95
Leaf
0x70728d7a7bfb0563cd47ab129691cbf0d9db68ebffdaa3644f30ccade1160e3e

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/evm/ethereum/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:ethereum/block/",
          "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:ethereum/block/",
          "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:ethereum/block/",
          "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:ethereum/block/",
          "reference": "9CKC8pgajcLpx4XeCovCXkYQbCQDGLStskc3MXB7HZvc",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6ZXRoZXJldW0vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiOUNLQzhwZ2FqY0xweDRYZUNvdkNYa1lRYkNRREdMU3Rza2MzTVhCN0hadmMiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjUwNzcyNjkxMn0.nMczr67gMca_mQMoTGxRZuCqCUeYhfpisWjMnsE3g_g"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:evm:block:ethereum/block/",
          "reference": "8gGvn6PP7vHkpWcWy59KHwoyNYkgkW6fvASLN3wBwuci",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6ZXRoZXJldW0vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiOGdHdm42UFA3dkhrcFdjV3k1OUtId295TllrZ2tXNmZ2QVNMTjN3Qnd1Y2kiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjUwNzcyNjkxMn0.WUrq7lFs3FqpjGKoSFbJpxYbbyoKRH_7bXlNwB3yQlA"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "90282",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:evm:block:ethereum/block/",
          "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": "6Yve2EeUkfYYCLoQg6cuMuMwmW167Agp3WPSbrWXQPeK",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6ZXRoZXJldW0vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiNll2ZTJFZVVrZllZQ0xvUWc2Y3VNdU13bVcxNjdBZ3AzV1BTYnJXWFFQZUsiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTAyODIsImV4cCI6MTc5MjUwNzcyNjkxMn0.3dK_ZXS2VhgISMj_q2hlCRlQgxKHmZIq5PH-FuF8Ecw",
          "solUsdPrice": 107.44
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Ethereum 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": "2026-10-20T14:46:46.968Z",
    "quality": {
      "l30DaysTotalCalls": 7,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-20T14:46:46.753Z"
    },
    "resource": "https://saylorinnovations.com/api/evm/ethereum/block/latest",
    "serviceName": "Saylor Innovations On-Chain Data",
    "tags": [
      "evm",
      "ethereum",
      "block",
      "onchain"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Ethereum block by number or latest - hash, time, transaction count, gas used, base fee and miner"
}

What the leaf hashes

{"body":"50b873c8cda5af76166655011da5ae3053feea439d6948f83fa2cf1c7adadd95","id":119761,"kind":"listing","method":"baseline/1","observed_us":1793025616458731,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/evm/ethereum/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. 0x7073ac71eed067c110bbc50937c5d224f3b9dc5a4b9ad984a1bd2d058e3c662f
  2. 0x79fa4e18820e1bf9b0d2c3952bff92f6d2afc8e250c83ea2817d1e39f4dfabe4
  3. 0xf8c45c97091a06ae36b8d33506d46a2f38f893f3a48383a8402b23226f999c70
  4. 0x9d479c75b99d8c61658954f772827c946930cb10d7528352d1fa25b6ab676798
  5. 0x60be76ef0ea58fb0a971a6bcd69798250fa4e32a6979e42004dea2fbf37cec49
  6. 0x0cbe3cb9cc54b2803c39ba0a8425d7ef6d03efd8ba47a7a696576d492b8f413e
  7. 0x637423e9baf79fb8f5983c80c19614507ae9642236e34d8899d2b0b180b438ef
  8. 0x03eba2f0befde58c94c66f2e768df4a8aa0568408d9b518b5856cdc863ed4bde
  9. 0x32d4c61247489d4bffcd3bb78f5797a4c184b5cf7bd748c7188058b762f346c0
  10. 0x3801dc224ee69349c6fe3a8804f83a6392c51dbf385196ccaca4e1bc01124391
  11. 0x85ea4bbb5113622e4aa66d1805aad88594922ba95c70691ba980547dd9edd2b2
  12. 0x5be1d69fd9353c3a75685caffea8c98e8f079f5072011c82517cc5f365ba32f8
  13. 0x14b83e3bc6587240f31cd033d09d131e0775b7b00aada9042597008a70399013
  14. 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
  15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
  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