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Evidence row 119780

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/evm/optimism/block/latest
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
e03474e884c279db33388aeea43d59927773d196c6d0d38acef230662b2654f4
Leaf
0x0d009c43b1acfbaa2fa22b7eb835fa521fb2105b32ac65a9940e8fbd6b232386

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/evm/optimism/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:optimism/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:optimism/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:optimism/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": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:evm:block:optimism/block/",
          "reference": "BuRhMZwbkFbHpSkNGy6onuuYbaYL1r1nLM1Xvgsxh1ey",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6b3B0aW1pc20vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiQnVSaE1ad2JrRmJIcFNrTkd5Nm9udXVZYmFZTDFyMW5MTTFYdmdzeGgxZXkiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjUwNzc0MTYxNX0.60nOiqITa0XHdi4lQJONx26pk7pLCcFGRXfj9FhLOuI"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:evm:block:optimism/block/",
          "reference": "77kB2XuKgSamW96EqHK9W77tUBMkyLnm3yECA9PnwXUD",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6b3B0aW1pc20vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiNzdrQjJYdUtnU2FtVzk2RXFISzlXNzd0VUJNa3lMbm0zeUVDQTlQbndYVUQiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjUwNzc0MTYxNX0.WM2piZiMyr6ASftPGLbR9Aas5Hon2l5pY9V2hoiK6KI"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "90282",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:evm:block:optimism/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": "Bz9iBYZ2oyNMZ8Gcs1HdfZojtKefsbR6BgVfChP7wBs6",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6b3B0aW1pc20vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiQno5aUJZWjJveU5NWjhHY3MxSGRmWm9qdEtlZnNiUjZCZ1ZmQ2hQN3dCczYiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTAyODIsImV4cCI6MTc5MjUwNzc0MTYxNX0.hrnvJJ_Ae2rZ0vm2rY4EPTWXl280IipIbjEozwQw-mw",
          "solUsdPrice": 107.44
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Optimism 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": "2026-10-20T14:47:01.672Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-20T14:47:01.473Z"
    },
    "resource": "https://saylorinnovations.com/api/evm/optimism/block/latest",
    "serviceName": "Saylor Innovations On-Chain Data",
    "tags": [
      "evm",
      "optimism",
      "block",
      "onchain"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Optimism block by number or latest - hash, time, transaction count, gas used, base fee and miner"
}

What the leaf hashes

{"body":"e03474e884c279db33388aeea43d59927773d196c6d0d38acef230662b2654f4","id":119780,"kind":"listing","method":"baseline/1","observed_us":1793025616483303,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/evm/optimism/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. 0x0d00b5c7d3679a455eae22ccf2b3608dd59c219bd8b833233109ac7b21974a84
  2. 0xc76024d1e69202550aff164a299adbaab3325f6ba5038efa08b583d9fbf22d42
  3. 0xcdd3f17747e26ee72689bfb73fd24267b0a463edb87d56c7bbfb7d802bacdb8b
  4. 0x70cffccf4745a3067dca86f98d823affa536f8c6952bc3598d693c8dc86f0062
  5. 0xa61871f8a526c9c9aa2e19d7a1d62b071938833a62ab3ee38f63283ed8bcf827
  6. 0xa4f773732fda74624fdaf18d80d398f613476419fea6101598c3b6da29c14584
  7. 0xceded72aa791cbe066442546b492c34e17e2a05bb63da639cd8c0a47646fd8b9
  8. 0xff763a7641551f6ddb28957b2ee5aae704665f36ab85a1da6db3ac9903f8ab92
  9. 0x5e1a3aef10dac9eae11675ae26e350165e9c6aa5619c1cd34dcab2a806ec5785
  10. 0x7df9268e3c799b09f6f61ac8a493750625b19546a343d4f6c00812722a4e4de6
  11. 0x1dd760089997f06dc5264f791d622a6e7eaf78f6daa715333a752d033cdb2e03
  12. 0x362683225b724b8d2d652a95968c57a6f4199ed4f2ad60900fc3603492f17520
  13. 0x5aefcf9e3d86e125861c0d490079969110eea8fc901ec61531bba10bb58258a1
  14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
  15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
  16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
  17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON