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Evidence row 119723

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/evm/arbitrum/block/latest
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
5a99ec2e5a1a00f0126c7266ae706b9bd3585e9214c1a803ec6f5b11ba2dfbe9
Leaf
0x7999be92120df310ac95f4768cff3c4c7560341f738b9b37db59fe8133e6bc18

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/evm/arbitrum/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:arbitrum/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:arbitrum/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:arbitrum/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:arbitrum/block/",
          "reference": "ESXB6Uw1okRZgrbH2i4n1HcKoaEuvAjZrQnqyeb5Nn8M",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6YXJiaXRydW0vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiRVNYQjZVdzFva1JaZ3JiSDJpNG4xSGNLb2FFdXZBalpyUW5xeWViNU5uOE0iLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjUwNzcxOTI2NH0.CXf2WzOQgtahEtaEyrnVymKMJkavS9abyTei-R-NGDQ"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:evm:block:arbitrum/block/",
          "reference": "DN2h7JSpM1hWRgqq6nMzTDNELG18zZV6BufXy1t4AZXz",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6YXJiaXRydW0vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiRE4yaDdKU3BNMWhXUmdxcTZuTXpURE5FTEcxOHpaVjZCdWZYeTF0NEFaWHoiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjUwNzcxOTI2NH0.8c8-5v1suvwEOJ9wnv_hBs05RkmlCtV8thFV9EPkfX4"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "90282",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:evm:block:arbitrum/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": "1Q71FfxUoiu8XUMw8qqmwTFTTcuHBdYQcmWQM1crPS8",
          "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6YXJiaXRydW0vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiMVE3MUZmeFVvaXU4WFVNdzhxcW13VEZUVGN1SEJkWVFjbVdRTTFjclBTOCIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5MDI4MiwiZXhwIjoxNzkyNTA3NzE5MzAzfQ.-ATyzI_-LqLnltuy7tTWUxA3PhVtkIgoqp4BtuENNG0",
          "solUsdPrice": 107.44
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Arbitrum 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": "2026-10-20T14:46:39.357Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-20T14:46:39.115Z"
    },
    "resource": "https://saylorinnovations.com/api/evm/arbitrum/block/latest",
    "serviceName": "Saylor Innovations On-Chain Data",
    "tags": [
      "evm",
      "arbitrum",
      "block",
      "onchain"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Arbitrum block by number or latest - hash, time, transaction count, gas used, base fee and miner"
}

What the leaf hashes

{"body":"5a99ec2e5a1a00f0126c7266ae706b9bd3585e9214c1a803ec6f5b11ba2dfbe9","id":119723,"kind":"listing","method":"baseline/1","observed_us":1793025616411538,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/evm/arbitrum/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. 0x7999a5b95e838fa752d52fb5edea65973ad0ee2678e70991772f61ab849f5f9d
  2. 0xa805c387dbe90cfd672b8e229cf87fc5e067ac24274aea57926ed0b6bf13f115
  3. 0x26434d081cdb5cf41bf755a4fb756e773dee30daa5dcdc61e64835c7cf9d00c1
  4. 0x62e2597a27cff976283f977cdebc45f6390e50a3413121cef4427e903ef372d7
  5. 0x90ab73a63b3c41bd3d217be78f162e048b6b1b30b967222efefc76ae6f82a07f
  6. 0xab2eb2fce35414d4d6c15194f8d60c574fd59ac5b2e4011dac5f6f0231eb9bf3
  7. 0x4566d217aa21e440115782babdbb6b74a5418bc5f233d66469a5fc8ed540ab61
  8. 0xd0e170f88068ac47264237220b435977fa9aa59c97de41f024f01aa988529c9b
  9. 0x64a3a1de186a30d8267409b69786e3fa58eff3a838fb9284fc759aac4b93cc63
  10. 0x92682b02dffe9c4da40541e03d18e0abcecdbee29ff9216ce70bbff0b1fec2a1
  11. 0x78977732f6810276b475c7ba4995e269c53c1218a49bb3951e04ede6049b4c08
  12. 0xdcba35a3346e9c4b9ae1267cc5995998c2c33da9ef658e955eaae1589ebbdcad
  13. 0x01c95624b1f2385ef774ee258a9ae58a4df07a1bdaa829de84e1d5201f3f39c2
  14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
  15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
  16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
  17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON