Evidence row 2201946

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://electronics-calc.x402tookit.com/battery-runtime"
    ]
  ],
  "name": "Electronics Calculators",
  "owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "transactionVersions": [
            0
          ]
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      }
    ],
    "description": "Battery runtime estimate from capacity (mAh and volts, or Wh) and load (mA or W), with efficiency and usable depth of discharge.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "capacityMah": 2000,
              "loadMa": 150,
              "voltage": 3.7
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T08:33:10.939Z",
              "capacityWh": 7.4,
              "degraded": false,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "efficiency": 0.9,
              "estimatedDays": 0.4,
              "estimatedHours": 9.6,
              "estimatedMinutes": 576,
              "idealHours": 13.3333,
              "loadW": 0.555,
              "notChecked": [
                "Peukert effect (heavy loads drain lead-acid and some Li cells faster than capacity suggests)",
                "temperature (cold cuts capacity a lot)",
                "…2 more"
              ],
              "reasons": [
                "Runtime = usable energy / load power. This is an estimate: real runtime is often 10 to 30% lower for heavy loads or in the cold.",
                "Keeping lithium cells between 20% and 100% (about 80% usable) extends their life."
              ],
              "source": "computed locally",
              "summary": "About 9.6 hours (0.4 days) of runtime: 7.4 Wh x 80% usable x 90% efficiency over a 0.555 W load; 13.3 h in the ideal case.",
              "usableFraction": 0.8,
              "verdict": "ESTIMATED"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "capacityMah": {
                      "description": "Capacity in mAh (with voltage)",
                      "type": "number"
                    },
                    "capacityWh": {
                      "description": "Capacity in watt-hours (instead of mAh)",
                      "type": "number"
                    },
                    "efficiencyPct": {
                      "description": "Converter efficiency, default 90",
                      "type": "number"
                    },
                    "loadMa": {
                      "description": "Load in mA at the battery voltage",
                      "type": "number"
                    },
                    "loadW": {
                      "description": "Load in watts (instead of mA)",
                      "type": "number"
                    },
                    "usablePct": {
                      "description": "Usable capacity, default 80 (protects battery life)",
                      "type": "number"
                    },
                    "voltage": {
                      "description": "Battery nominal volts (with mAh)",
                      "type": "number"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "capacityWh": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "efficiency": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "estimatedDays": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "estimatedHours": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "estimatedMinutes": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "idealHours": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "loadW": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "usableFraction": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:51:32.776Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:51:32.495Z"
    },
    "resource": "https://electronics-calc.x402tookit.com/battery-runtime",
    "serviceName": "Electronics Calculators",
    "tags": [
      "electronics",
      "battery",
      "runtime",
      "maker"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Battery runtime estimate from capacity (mAh and volts, or Wh) and load (mA or W), with efficiency and usable depth of discharge."
}

What the leaf hashes

{"body":"f78dead5ae76a0dac00bb49732be500dc88aa3135020aa7f5332fa7599eec64c","id":2201946,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646810965240,"prev":null,"subject":"x402_bazaar:https://electronics-calc.x402tookit.com/battery-runtime","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0xe76761aac1a28aa872af2b22bdcfff29dcabb6906c34ea4a0baa0f9e88cc0ce3
2. 0x7af329774d2a34990938d9b6205b10bea68e76229aef6afaf05e18593d5ce425
3. 0x12fff482713518d68690a2d9bcbd78e3e250572919c6a03d62c2fd3d822bc766
4. 0xd26e5b1a28094b7e11af939977c32abe586a89be70c73acc4cad6f9b1f689fd1
5. 0x0d19b579438607d41ee6b61cfa662eb40bad6e138df29b424410d2088910357b
6. 0xf4342506632af3539e6fea00f3e074ca841dd70d840f4ba100c1f740c35dea7b
7. 0x9841e6056d07463211f1ba3003f8bc8d5ee50c7c6919d8cf47bb2c99286cbb14
8. 0xfd90f2257d5a6c098a1b396deb4b2b0f7a81a7bd90d3f2b3675e118c2959206d
9. 0x23dbb4cd8cfa7c0a6eee568db43a55f7248d29d4f4c41b5c99cabd92f3d5a74c
10. 0xeb77175545832079032c6c1b6217d919a2a08eb82b937b9a9171a0399c7c30c0
11. 0xefa8d9243871e2979fc6ddf8cb136359d9a8b6444343cc009a1cd50af6f690af
12. 0x841ad4eaef71169e03e95d2082a5c83db1b3a56a9753b17df04fe34aa579b749
13. 0x0418958fa118b0a6a70d8e336a1073213853f5a3502b9ffc66202cc82d3dd472
14. 0xf02baa2f8f9b385919b2f698b2e9351b84bd44118a8d5a72f2d1303df2c329b4
15. 0xd643f764eee39146411d4bff8903a327f4f8f55616e14e57281a245206d6ed2b
16. 0x6dd7e4db65395e8670c7c2747d44fec79e03305934ef4746bf5dbca04ec6ec49
17. 0xec5d643575d83c9e07e65deeef71943b53cbf3007e7e2b9a6ef414081509b0cc
18. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af