Evidence row 119776

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/evm/gas"
    ]
  ],
  "name": "Saylor Innovations On-Chain Data",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:evm:gas:gas",
          "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:gas:gas",
          "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:gas:gas",
          "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:gas:gas",
          "reference": "BLF7RrpZ98DEqmiFYACrb1fVBpPCwMD7CCc7gYHRbytU",
          "session": "eyJhcnRpY2xlSWQiOiJldm06Z2FzOmdhcyIsInJlZmVyZW5jZSI6IkJMRjdScnBaOThERXFtaUZZQUNyYjFmVkJwUEN3TUQ3Q0NjN2dZSFJieXRVIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0NzE5NzA1ODh9.vmDCwN9DrdiGu66QofTamG_s9ElVe_QpfxhLBYOwFxU"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:evm:gas:gas",
          "reference": "9UnYX26GkotjnVFf7KsZyKYdAMGY24oHsLc6F3T18Wq1",
          "session": "eyJhcnRpY2xlSWQiOiJldm06Z2FzOmdhcyIsInJlZmVyZW5jZSI6IjlVbllYMjZHa290am5WRmY3S3NaeUtZZEFNR1kyNG9Ic0xjNkYzVDE4V3ExIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0NzE5NzA1ODh9.ldGrdRwf-btBDqhLvWaDKEep2xUqt-zq4cysKVkzDhY"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92292",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:evm:gas:gas",
          "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": "95147",
          "reference": "DWoKhMvvuSpBVM9tPPcJZ4vrockmWDvEsspatyDeL4dU",
          "session": "eyJhcnRpY2xlSWQiOiJldm06Z2FzOmdhcyIsInJlZmVyZW5jZSI6IkRXb0toTXZ2dVNwQlZNOXRQUGNKWjR2cm9ja21XRHZFc3NwYXR5RGVMNGRVIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkyMjkyLCJleHAiOjE3OTI0NzE5NzA1ODh9.FRNNGo3OZQDnvT4u_QqCuAbq4qFlheNzBn0gG059FmY",
          "solUsdPrice": 105.1
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Ethereum gas price now, compared across Base, Arbitrum, Optimism and Polygon with slow, standard and fast tiers",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "chains": [
                {
                  "block": 51738756,
                  "chain": "base",
                  "fast_gwei": 0.01,
                  "slow_gwei": 0.005,
                  "standard_gwei": 0.006,
                  "transfer_cost_usd": 0.0004
                }
              ],
              "cheapest": "base",
              "generated_at": "2026-09-24T17:00:00.000Z"
            },
            "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": {
                    "chains": {
                      "description": "Chains covered",
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "cheapest": {
                      "description": "Cheapest option",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "generated_at": {
                      "description": "Time this response was generated (UTC)",
                      "type": "string"
                    },
                    "note": {
                      "description": "Caveat or context for reading the result",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "prices_usd": {
                      "description": "Prices, in US dollars"
                    }
                  },
                  "required": [
                    "generated_at",
                    "chains"
                  ],
                  "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": "2026-10-20T04:50:50.631Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-20T04:50:50.422Z"
    },
    "resource": "https://saylorinnovations.com/api/evm/gas",
    "serviceName": "Saylor Innovations On-Chain Data",
    "tags": [
      "evm",
      "multichain",
      "gas",
      "onchain"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Ethereum gas price now, compared across Base, Arbitrum, Optimism and Polygon with slow, standard and fast tiers"
}

What the leaf hashes

{"body":"09e9e1c55a387fd528f4b35f01f0d511422ba0c503391965da78b450c1047645","id":119776,"kind":"listing","method":"baseline/1","observed_us":1793025616477632,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/evm/gas","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. 0xda3a64af7f49aaabd14bc590611d9c3179ef28ad2d0ad289b775e26182b98a64
2. 0x72263a819b9a852c0b00444c6fbd18e8a69ad69fec771f9add17d5a8940d3e76
3. 0xf6fea4fe0d406be9b53821c679f53dc728c6415f8bcaee3810368ba60fc073ce
4. 0xf569a6ec6930f0fbfd21985f7a75a2ad3481ab978a21bd3c0fcbe818e5c8a84f
5. 0x173e7a118bf565260c513c44a4bfb425262b675c51151ba63cc317bed4d35190
6. 0x299313021e0b961d60892371e2ee6cdd21c69b8db29309412938e04f61aae9f8
7. 0x4ac55120e71bf805c86edcf8b8a3d126c2cb9319b8e874c8e248d6c38e715a2f
8. 0x2dfeebb3f9c00334384ea015f4975b2cd8382e344274449ee7278a48e3976ac6
9. 0x439cf446b6655a1c9af5ca75dadbc6e0a732ed6f01bd40ee0b683ca22ba33285
10. 0xddb1d558f250f3c7af2a9114478d2e8fd2c1ccf13c41a7367d80c929b4a5e0c6
11. 0xc65997d4cbe46cfb99054bd5df6a660823432d48a8d7d21b0c1bed1df236af25
12. 0x3704bc5ad033a79977899a5ead894cf50c0b8c8432c020959cefe2af561eb5ee
13. 0xcd9e3af1fa905ec61b99ee9442716d7c7a439aecacd018ec229a24def1cabf6b
14. 0x6b927d53caa5125cdba9255612d524976c691f8672796c3f0885ba2c5b3af1ad
15. 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae