Evidence row 120678

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/tax/sales"
    ]
  ],
  "name": "Saylor Innovations  Sales-Tax Ca",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:tax:sales",
          "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:tax:sales",
          "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:tax:sales",
          "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:tax:sales",
          "reference": "5JStNmLQjtsePeYcoJ9yzkQcdt4YmyPn2BnktkqEmQTY",
          "session": "eyJhcnRpY2xlSWQiOiJ0YXg6c2FsZXMiLCJyZWZlcmVuY2UiOiI1SlN0Tm1MUWp0c2VQZVljb0o5eXprUWNkdDRZbXlQbjJCbmt0a3FFbVFUWSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyMzc3MTcyMjIzfQ.fPykq3RiAsqVugNrSpsNkKkVi3M3sGKvgrk5OrtfrXw"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:tax:sales",
          "reference": "GDLgb6WLXfn3rNdmoc1mMpimhLe3fsMA9hUBCP2BSyaq",
          "session": "eyJhcnRpY2xlSWQiOiJ0YXg6c2FsZXMiLCJyZWZlcmVuY2UiOiJHRExnYjZXTFhmbjNyTmRtb2MxbU1waW1oTGUzZnNNQTloVUJDUDJCU3lhcSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyMzc3MTcyMjIzfQ.e_5UtRMAwEGGsn-V9Whz4mdDdg0urc8Q89d3v9h1Fyc"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92495",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:tax:sales",
          "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": "95356",
          "reference": "CHxa2T3UAAp8D8dSsktdiL5N76rTeppjx1zDYZTMPSpZ",
          "session": "eyJhcnRpY2xlSWQiOiJ0YXg6c2FsZXMiLCJyZWZlcmVuY2UiOiJDSHhhMlQzVUFBcDhEOGRTc2t0ZGlMNU43NnJUZXBwangxekRZWlRNUFNwWiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5MjQ5NSwiZXhwIjoxNzkyMzc3MTcyMjIzfQ.NEj1me4jMDju-LtqjG6_d0p33180mXMOX-9VgcVYOPg",
          "solUsdPrice": 104.87
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Sales tax calculator from subtotal and rate - tax and total",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "rate": "8.25",
              "subtotal": "100"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "rate_percent": 8.25,
              "scope_note": "Estimate only; exemptions and jurisdiction rules vary.",
              "subtotal": 100,
              "tax_amount": 8.25,
              "total": 108.25
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "rate": {
                      "description": "required non-negative tax rate percentage (query)",
                      "type": "string"
                    },
                    "subtotal": {
                      "description": "required non-negative subtotal (query)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "subtotal",
                    "rate"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "formula": {
                      "description": "Formula used for the calculation",
                      "type": "string"
                    },
                    "rate_percent": {
                      "description": "Rate, as a percentage",
                      "type": "number"
                    },
                    "scope_note": {
                      "description": "What this data covers and what it leaves out",
                      "type": "string"
                    },
                    "subtotal": {
                      "description": "Subtotal before adjustments",
                      "type": "number"
                    },
                    "tax_amount": {
                      "description": "Tax amount",
                      "type": "number"
                    },
                    "total": {
                      "description": "Total number of matching items",
                      "type": "number"
                    }
                  },
                  "required": [
                    "subtotal",
                    "rate_percent",
                    "tax_amount",
                    "total",
                    "scope_note"
                  ],
                  "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": "2026-10-19T02:30:52.276Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T02:30:52.003Z"
    },
    "resource": "https://saylorinnovations.com/api/tax/sales",
    "serviceName": "Saylor Innovations  Sales-Tax Ca",
    "tags": [
      "tax",
      "sales-tax",
      "included-tax",
      "tip",
      "calculator"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Sales tax calculator from subtotal and rate - tax and total"
}

What the leaf hashes

{"body":"c75db09736fcf20f30f650189b9bffc07e67e40d94a7bc69530d478ec12219f0","id":120678,"kind":"listing","method":"baseline/1","observed_us":1793025618459365,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/tax/sales","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. 0x304d31773a371b566ebfab28897a39f0814c62af0c8bb83abef8b00db028b2c4
2. 0xd704fc808c979ebbabfd18b875a9262433e9ed7cad5e7e8f011b6f70de9ee697
3. 0xd37b7503401c6dc1d9abf7406b05cdf45c7a1ad537316f13aca60fcf6599c102
4. 0xaa15005f196038d146e0f1750a30489d41719cc8dff4463201db4a9ad9df226f
5. 0x6767e91e800d2bb549beef4ffafbf8add8c9a2ba69be5a0e4a8eb692b1744c5c
6. 0x3b335694255f30ce203ba1ef006ad3ab9df7cbce3a5503208f45f851a645133a
7. 0x9640c8a912fb0f006a7ab9eefa2287a1cfa5d6f25f9cd819a7dfa22714c5afda
8. 0x585ebdaeb483d926fb43a2c7314287d3cb20bb9bc8ece4320305aeb4efe50e66
9. 0x4c3f3c54cb86f615c8f89498ef5aa0197e36f3c3340d5b27d8cc5216ae000be0
10. 0xfc41c6565c167c5fee646cb3779bde7c2fc51d01a9e07093c87ead9e962c2976
11. 0x66b4d790d6ae725a0af009d5a6edacaec5a6147d597bc8410a97be11d56a00d1
12. 0xd85c7204d76d26255c94ef4caa12c05addd08238caa5cdc3888ea60b74e6b940
13. 0x36a44931b230976c04691d90bf3a25ed4111d74c78b672850d8025a911ca88dd
14. 0x683955a5b2250ad50568d022a6580d8739b6aff1356779d72a773b088e7c289c
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae