Evidence row 119595

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/crypto/unit-convert"
    ]
  ],
  "name": "Saylor Innovations Data Desk",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:crypto-unit-conv",
          "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:crypto-unit-conv",
          "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:crypto-unit-conv",
          "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:datadesk:crypto-unit-conv",
          "reference": "5Pxq81mX58crHH5AJBzktgCkdRqtNV3Jhv5pt5Zf56Hk",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjcnlwdG8tdW5pdC1jb252ZXJ0IiwicmVmZXJlbmNlIjoiNVB4cTgxbVg1OGNySEg1QUpCemt0Z0NrZFJxdE5WM0podjVwdDVaZjU2SGsiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjU1MTU3MDY2OH0.tQMK5p8pxOIL0mGdAm19kKJv_jjAwvRLuqmlEoPp0WA"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:datadesk:crypto-unit-conv",
          "reference": "ET2xE4zANu2M75SnWaBpUqefyr2r1ovkWpYtxPQazY1U",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjcnlwdG8tdW5pdC1jb252ZXJ0IiwicmVmZXJlbmNlIjoiRVQyeEU0ekFOdTJNNzVTbldhQnBVcWVmeXIycjFvdmtXcFl0eFBRYXpZMVUiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjU1MTU3MDY2OH0.UBs7sQZV5HJa68_q7rNbnPtguxoCi4TH8RztdNcvUc0"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "91310",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:datadesk:crypto-unit-conv",
          "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": "94135",
          "reference": "AsT9YKYjkPrDhd5SW8Cpadc5TxBgCH3Wx5H8svwjiMfD",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjcnlwdG8tdW5pdC1jb252ZXJ0IiwicmVmZXJlbmNlIjoiQXNUOVlLWWprUHJEaGQ1U1c4Q3BhZGM1VHhCZ0NIM1d4NUg4c3Z3amlNZkQiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTEzMTAsImV4cCI6MTc5MjU1MTU3MDY2OX0.2muGjDXGio3P5TF6pF8OJaSHjzLT6LnQiH8A0PYiSlc",
          "solUsdPrice": 106.23
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Convert crypto units exactly: wei, gwei, ether, lamports, SOL, satoshis, BTC and any token decimals, using integer math with no floating-point rounding errors.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "amount": "1.5",
              "from": "ether",
              "to": "gwei"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "amount": "1.5",
              "exact": true,
              "from": "ether",
              "from_decimals": 18,
              "note": "Exact integer arithmetic on strings, no floating point. Each unit is one named denomination relative to its own smallest unit (wei = 1e-18 ether, gwei = 1e-9 ether, lamport = 1e-9 SOL, satoshi = 1e-8 BTC). Converting between different assets (ether to SOL) changes only the denomination, not the price: use a price route for that.",
              "result": "1500000000",
              "result_smallest_unit": "1500000000000000000",
              "source": "Computed locally (BigInt)",
              "to": "gwei",
              "to_decimals": 9
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "amount": {
                      "description": "non-negative decimal string, for example 1.5",
                      "type": "string"
                    },
                    "from": {
                      "description": "unit name (wei, gwei, ether, lamport, sol, satoshi, btc, usdc, ...) or decimals:N",
                      "type": "string"
                    },
                    "to": {
                      "description": "unit name or decimals:N",
                      "type": "string"
                    }
                  },
                  "required": [
                    "amount",
                    "from",
                    "to"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "amount": {
                      "description": "Amount",
                      "type": "string"
                    },
                    "exact": {
                      "type": "boolean"
                    },
                    "from": {
                      "description": "Start of the range",
                      "type": "string"
                    },
                    "from_decimals": {
                      "description": "From decimals",
                      "type": "number"
                    },
                    "note": {
                      "description": "Caveat or context for reading the result",
                      "type": "string"
                    },
                    "result": {
                      "description": "Result of the operation",
                      "type": "string"
                    },
                    "result_smallest_unit": {
                      "description": "Result smallest unit",
                      "type": "string"
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": "string"
                    },
                    "to": {
                      "description": "End of the range",
                      "type": "string"
                    },
                    "to_decimals": {
                      "description": "To decimals",
                      "type": "number"
                    }
                  },
                  "required": [
                    "amount",
                    "from",
                    "from_decimals",
                    "to",
                    "to_decimals",
                    "result",
                    "result_smallest_unit",
                    "exact",
                    "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/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-21T02:57:30.703Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-21T02:57:30.388Z"
    },
    "resource": "https://saylorinnovations.com/api/crypto/unit-convert",
    "serviceName": "Saylor Innovations Data Desk",
    "tags": [
      "wei to gwei converter",
      "ether unit conversion",
      "lamports to sol",
      "satoshi to btc",
      "token decimals converter"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Convert crypto units exactly: wei, gwei, ether, lamports, SOL, satoshis, BTC and any token decimals, using integer math with no floating-point rounding errors."
}

What the leaf hashes

{"body":"dba5fd6243cefcb45b1ae181f1e350b13a6efc8b6b36bcfbc28cbc441d6fce2e","id":119595,"kind":"listing","method":"baseline/1","observed_us":1793025616049711,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/crypto/unit-convert","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. 0xcdb83c42b174bf32dfdd7eab297c07e4b135454fd509b9a17045cc91494d773b
2. 0x35baf0acc66541384e68e5672488988a604775d715743c6f0f36d6876eb73515
3. 0xf16f2f5c29effa8d966b7b247eb65ae8cd10d709b723ad11e2b3565ed695a631
4. 0x5ebe00f90fa5ab35c18a5166468af0bfb7853bc6dc157956180728a3eaeed04e
5. 0xac82ed65d964a32fd344668eeccfdf0d36f0db6d0438e2e10992a00d1016eec7
6. 0xa73d02f99924622ed006d70e77bf00419663e0d352ffdab35de566eccb4d3ab5
7. 0x18b2d668cf77e471acb04fbe686f98d3fbc523940e72344dd15760874a3ea766
8. 0x3ca23140692ba2be421636debade5acabdb117720eb8a31f76955627e5c4fc59
9. 0xd57248e7a9b46d0cbcdcf06aaeaa397c60ee5442e50645c62cf5b1976aedba5d
10. 0x9a73546a7d103d7486a891fe9f96753919be6696ccb5a70a4044405c08bca716
11. 0xbee3c0dbc9149e89a214e95afe49b5d8a825aaaf7aa1721b2d66bbb287d6fd4d
12. 0xa45f4438c9296b0ba586fc2eec9f0202e5d3c61a1d3adc975b80f6a1f4a5ca57
13. 0xe43762a621da83c0b4b63f549cd2e19c428ac702bfc1038d70233867b06c447f
14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae