Evidence row 119837

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/explorer/hedera/network"
    ]
  ],
  "name": "Saylor Innovations Data Desk",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:explorer-hedera-",
          "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:explorer-hedera-",
          "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:explorer-hedera-",
          "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": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
          "memo": "saylor:datadesk:explorer-hedera-",
          "reference": "8pdXTNedskTKJP8wMvyTsHMXnMsbzNBXPzer5FNmL2YL",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleHBsb3Jlci1oZWRlcmEtbmV0d29yayIsInJlZmVyZW5jZSI6IjhwZFhUTmVkc2tUS0pQOHdNdnlUc0hNWG5Nc2J6TkJYUHplcjVGTm1MMllMIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI3NTg1MzI0MDZ9.K2tVCkd4T4mqSeWP4pcnZCqr0Cja138SWex6uDfZ5f4"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
          "memo": "saylor:datadesk:explorer-hedera-",
          "reference": "4bgwXKpPwzwqtrom3Jm3JrpaptZmNKgWW598Q1KRPP1x",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleHBsb3Jlci1oZWRlcmEtbmV0d29yayIsInJlZmVyZW5jZSI6IjRiZ3dYS3BQd3p3cXRyb20zSm0zSnJwYXB0Wm1OS2dXVzU5OFExS1JQUDF4IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI3NTg1MzI0MDd9.Pbtj98PLO3lydWNj9-1uxhlA9eYesfEcKV0iSay2-5U"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92875",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:datadesk:explorer-hedera-",
          "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": "95748",
          "reference": "5pQEFvTRjCYrPZ6sqBRcGtWSeBSL9DYGGVdJXJG8eJE3",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleHBsb3Jlci1oZWRlcmEtbmV0d29yayIsInJlZmVyZW5jZSI6IjVwUUVGdlRSakNZclBaNnNxQlJjR3RXU2VCU0w5RFlHR1ZkSlhKRzhlSkUzIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkyODc1LCJleHAiOjE3OTI3NTg1MzI0MDd9.Z88yfb8zL8w4ocIdqny6TiGzr6t_JDr7BXyswFU9cJU",
          "solUsdPrice": 104.44
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Hedera network status: latest block and age, total and released HBAR supply with the released share, and the gas prices for contract calls.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "block_age_seconds": 6,
              "block_number": 101374915,
              "block_time": "2026-10-21T02:38:00.000Z",
              "chain": "hedera",
              "contract_call_gas_tinybars": 101,
              "contract_create_gas_tinybars": 101,
              "ethereum_transaction_gas_tinybars": 101,
              "note": "Supply is in whole HBAR (the fixed total is 50 billion); the gas figures are the network's price per gas unit in tinybars (1 HBAR = 100,000,000 tinybars). Read from the chain's public node API at request time.",
              "released_pct": 88.05,
              "released_supply_hbar": 44027157626,
              "source": "Hedera mirror node REST API (public endpoint)",
              "total_supply_hbar": 50000000000
            },
            "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": {
                    "block_age_seconds": {
                      "description": "seconds since that block",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "block_number": {
                      "description": "latest block",
                      "type": "number"
                    },
                    "block_time": {
                      "description": "time of that block",
                      "type": "string"
                    },
                    "chain": {
                      "description": "the chain this describes",
                      "type": "string"
                    },
                    "contract_call_gas_tinybars": {
                      "description": "price per gas for a contract call",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "contract_create_gas_tinybars": {
                      "description": "price per gas for contract creation",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "ethereum_transaction_gas_tinybars": {
                      "description": "price per gas for an Ethereum-format transaction",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "note": {
                      "description": "plain-language reading of the result, including units",
                      "type": "string"
                    },
                    "released_pct": {
                      "description": "released share of total supply",
                      "type": "number"
                    },
                    "released_supply_hbar": {
                      "description": "released supply in HBAR",
                      "type": "number"
                    },
                    "source": {
                      "description": "where the data was read from",
                      "type": "string"
                    },
                    "total_supply_hbar": {
                      "description": "fixed total supply in HBAR",
                      "type": "number"
                    }
                  },
                  "required": [
                    "chain",
                    "block_number",
                    "block_time",
                    "total_supply_hbar",
                    "released_supply_hbar",
                    "note",
                    "source"
                  ],
                  "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/v1792548358/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-23T12:26:52.438Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-23T12:26:52.173Z"
    },
    "resource": "https://saylorinnovations.com/api/explorer/hedera/network",
    "serviceName": "Saylor Innovations Data Desk",
    "tags": [
      "hedera network status",
      "hbar circulating supply",
      "hedera gas fee",
      "hedera latest block",
      "hbar total supply"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Hedera network status: latest block and age, total and released HBAR supply with the released share, and the gas prices for contract calls."
}

What the leaf hashes

{"body":"488bdf7bd6e80268e6161f7bd5dabf9617cfe2833055a549ab14238d896d46ac","id":119837,"kind":"listing","method":"baseline/1","observed_us":1793025616561952,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/explorer/hedera/network","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x2d0ad6885a6d78b1a0f829dfa8b542018f680e7d4e2b18e9be779441658e05a7
2. 0x858948ab4af9bf169c3d60e515312819e9b8ae6911245dc506aa2aea6e91431e
3. 0x654f02feccc55e36ba2e6d7a77940105d1d2416be1fd1ef1a642269ff77a1b48
4. 0x518ea84dcc62e08458153565b03653d4a2fc88d60e0bbe5919b5a12769635fa9
5. 0x23b7a33d26897a244890415283c905dd4a82685d830fd66fa62f6a7a39e23b7d
6. 0x1cbd96b21d2ddb0c50201bca0ff3116160bce872b810af5498ba275f296fcceb
7. 0x3d4fdf03c41fd2fba45befee3e5f3d62e568ce8fc2796f5c6657eb9b862517aa
8. 0x2266ed9691091e6883d0b97eae8b46a087100736b1d9c57655dbfc09f10b336f
9. 0xb3e9c882a3a01287b75c562c686462ce39f95beff552606a5177db859d21f55e
10. 0xfedb774859091fc826985613a3b2a7fe561fdca554ffa5217a3e9ddf9fa88e9c
11. 0x9f7d3cc11f13fc54c5221c4babc2273f69d77c4b805c79df41df74cfb0975d6c
12. 0xf89d9951e0a8e08b9cf11177a1f4e0fd86d9facc5dfecaabbfe564675ebefef7
13. 0xb87e8b32cda179c9e632e227bbd8a6d1f6f61d9d81bb92dbd4dd835d2b3b5caa
14. 0x683955a5b2250ad50568d022a6580d8739b6aff1356779d72a773b088e7c289c
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae