Evidence row 120680

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/tax/tip"
    ]
  ],
  "name": "Saylor Innovations  Tip, Tax, an",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:tax:tip",
          "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:tip",
          "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:tip",
          "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:tip",
          "reference": "GuBvBHte35JurMfwXxwrRVA3nVpHH8G8SMrsfwXwVW82",
          "session": "eyJhcnRpY2xlSWQiOiJ0YXg6dGlwIiwicmVmZXJlbmNlIjoiR3VCdkJIdGUzNUp1ck1md1h4d3JSVkEzblZwSEg4RzhTTXJzZndYd1ZXODIiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjM3NzE3MzY3Mn0.aUv09PU8x6rM5pvqH0uy-tIwXJ217BTBEFstbswxj3Y"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:tax:tip",
          "reference": "DAatsVtJJ5aGbAtKKmxHjSPxGyz2dk8hXejtTVqKaUqK",
          "session": "eyJhcnRpY2xlSWQiOiJ0YXg6dGlwIiwicmVmZXJlbmNlIjoiREFhdHNWdEpKNWFHYkF0S0tteEhqU1B4R3l6MmRrOGhYZWp0VFZxS2FVcUsiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjM3NzE3MzY3Mn0.i81u3uI7cxfdPpdJE20g1cxLy3R-4ncCxJRhhl1I31k"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92495",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:tax:tip",
          "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": "BXofwCNf6yjSzi39JgP9FbTmnRP9K7K1WkFWGrrp2EBX",
          "session": "eyJhcnRpY2xlSWQiOiJ0YXg6dGlwIiwicmVmZXJlbmNlIjoiQlhvZndDTmY2eWpTemkzOUpnUDlGYlRtblJQOUs3SzFXa0ZXR3JycDJFQlgiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTI0OTUsImV4cCI6MTc5MjM3NzE3MzY3Mn0.FjlGDHs0Jx143rb_r8tyGcXaxCA-DAPqgS3wmlwDggw",
          "solUsdPrice": 104.87
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Tip, tax and total bill calculator from subtotal, tax rate and tip rate",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "subtotal": "100",
              "tax_rate": "8",
              "tip_rate": "20"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "scope_note": "Dining arithmetic only; service and tax rules vary.",
              "subtotal": 100,
              "tax_amount": 8,
              "tax_rate_percent": 8,
              "tip_amount": 20,
              "tip_rate_percent": 20,
              "total": 128
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "subtotal": {
                      "description": "required non-negative bill subtotal before tax and tip (query)",
                      "type": "string"
                    },
                    "tax_rate": {
                      "description": "required non-negative tax rate percentage (query)",
                      "type": "string"
                    },
                    "tip_rate": {
                      "description": "required non-negative tip rate percentage (query)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "subtotal",
                    "tax_rate",
                    "tip_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"
                    },
                    "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"
                    },
                    "tax_rate_percent": {
                      "description": "Tax rate, as a percentage",
                      "type": "number"
                    },
                    "tip_amount": {
                      "description": "Tip amount",
                      "type": "number"
                    },
                    "tip_rate_percent": {
                      "description": "Tip rate, as a percentage",
                      "type": "number"
                    },
                    "total": {
                      "description": "Total number of matching items",
                      "type": "number"
                    }
                  },
                  "required": [
                    "subtotal",
                    "tax_rate_percent",
                    "tip_rate_percent",
                    "tax_amount",
                    "tip_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": "2026-10-19T02:30:53.718Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T02:30:53.415Z"
    },
    "resource": "https://saylorinnovations.com/api/tax/tip",
    "serviceName": "Saylor Innovations  Tip, Tax, an",
    "tags": [
      "tax",
      "sales-tax",
      "included-tax",
      "tip",
      "calculator"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Tip, tax and total bill calculator from subtotal, tax rate and tip rate"
}

What the leaf hashes

{"body":"5fee24d02457f5b73e8079f614120a9cfe8974c5c9b2f9227b28c74d5ab86ee1","id":120680,"kind":"listing","method":"baseline/1","observed_us":1793025618461882,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/tax/tip","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. 0x734e790fe8b035f9fe695ab5ac661006c2aa63c9b8418d9c505689a8327c7b6f
2. 0x739ff9987d3d24b15e1bdc21245f74e9abc4296956c02989f1a344531973e793
3. 0x659fc7d37bd26c2c49e3d6971405ededdb38f053dce4e0662cfa611896d8426f
4. 0x707a01d4dc68df379027b3c1c5ce7b97bfa12daf6630f6068059a5ce7435b47a
5. 0x503c141623bb603cb14c761824fe845c259f98d1f713636a55aef61ac104b1e1
6. 0xdb63d9a94745c39e0bff1fbfc85eaf27ad53aa94e68e41a3e347bc08eedb38d1
7. 0xb015bc4d78519e676c0b611bd117af169a5bc696152b34869c567e38f295b2b2
8. 0xe2fadef6928ac1f9a6cb8c37e4f6a1a4df01160d95ad57a938ade4b8cb99dffd
9. 0x6423b6b4c84704ed195c7ae71a3365d748f95993ce7ce76b600f785d88b9eddd
10. 0xc2fcd11ef5af6a59df481070e310192a7ac0d719b88489223003ed02d68e2c79
11. 0x4ad1cba264cd30b4cce9fb7c52897b51c3d91649c3d00e37d10c56aed923e338
12. 0x3f193b47c78cf4e7b9e4988cd716854b0e1011e5fcbca161f5a885f1aa02857d
13. 0x06064dc1eb2363bec8c2a752e0a28aafc4bf0cb21d1b1b755821c1575bb77a96
14. 0xc4fe2177880ea1b0e82b6fe4c270090fd0fbe5af3a42a8cbf6a6ba2fa35625f6
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae