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Evidence row 2201942

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://electronics-calc.x402tookit.com/ohms-law
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
25e69cc6972b4e12b0d25208aace236da284f87c69ec6c5c09952c56f2d86342
Leaf
0x4caf3e702295c582f955cee332ffc1867e099515172e6e007237676d1ed4b487

What was observed

{
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    [
      "x402",
      "https://electronics-calc.x402tookit.com/ohms-law"
    ]
  ],
  "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": "Ohm's law and power: give any two of voltage, current, resistance and power and get all four, with engineering units.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "current": 0.5,
              "voltage": 12
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T08:33:11.991Z",
              "currentA": 0.5,
              "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.",
              "formatted": {
                "current": "500 mA",
                "power": "6 W",
                "resistance": "24 ohm",
                "voltage": "12 V"
              },
              "notChecked": [
                "AC circuits (this is DC or resistive RMS only: reactance and power factor are ignored)",
                "component ratings, heat and tolerance",
                "…1 more"
              ],
              "powerW": 6,
              "reasons": [
                "V = I x R, P = V x I. Resistors are rated for power: choose a part rated at least twice the dissipation.",
                "Resistive DC or RMS values only."
              ],
              "resistanceOhm": 24,
              "source": "computed locally",
              "summary": "12 V, 500 mA, 24 ohm, 6 W.",
              "verdict": "SOLVED",
              "voltageV": 12
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
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                    "current": {
                      "description": "Amps",
                      "type": "number"
                    },
                    "power": {
                      "description": "Watts",
                      "type": "number"
                    },
                    "resistance": {
                      "description": "Ohms",
                      "type": "number"
                    },
                    "voltage": {
                      "description": "Volts",
                      "type": "number"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
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                  "properties": {
                    "asOf": {
                      "type": [
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                    },
                    "currentA": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "formatted": {
                      "properties": {
                        "current": {
                          "type": [
                            "null",
                            "string"
                          ]
                        },
                        "power": {
                          "type": [
                            "null",
                            "string"
                          ]
                        },
                        "resistance": {
                          "type": [
                            "null",
                            "string"
                          ]
                        },
                        "voltage": {
                          "type": [
                            "null",
                            "string"
                          ]
                        }
                      },
                      "type": [
                        "null",
                        "object"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "powerW": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "resistanceOhm": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "voltageV": {
                      "type": [
                        "null",
                        "number"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:51:43.92Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:51:43.754Z"
    },
    "resource": "https://electronics-calc.x402tookit.com/ohms-law",
    "serviceName": "Electronics Calculators",
    "tags": [
      "electronics",
      "ohms-law",
      "power",
      "calculator"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Ohm's law and power: give any two of voltage, current, resistance and power and get all four, with engineering units."
}

What the leaf hashes

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Proof

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

  1. 0x4caede41147283bdd12f7efef53bc41dac5c346c1c0b51bef13cd20b879dd79a
  2. 0xa2af2ae206a77885ec3f9e7d76397b4aa1a6d2a27bfcc955a622de1b58314aa5
  3. 0x13d9614d3c6c58b947b76607a00af09a13c7139d0d5e685b191ee4b318e6430a
  4. 0x315460992276223678772b3949f72dfc73e122c66927ef3502662460fad5f3da
  5. 0xdd1d6204d69e95790c3c0da5acb2974ca0009a7c0d1585a2735be6110b0f227d
  6. 0x73117b9cb0eed8628e8805cb9d8912253b45783c031f1d796b534b7bff944f60
  7. 0x79adc2b3f9bb9702a48e7f59a74020d476f0deebfbdea1a4c1406b9f688694b9
  8. 0x10de04b9dba776b2f2a4777ae57499cc31937f9aa0b81c90a3ffa8bf8aa2dbd9
  9. 0xe7e9e683f1772d7eb377b5f8660adbd169e2a0480688557dcf82dd447fee5c00
  10. 0xd0910c161ee3210f22a96d10e77dd46ebf3c06f561aeb5a66fadce489ef4cd62
  11. 0xa7f63fc52aa867079bccf41e1c316b83669bdc729aefcd02142cda6d20ee0f97
  12. 0x61b34ad045e6450b81b7a4502b2d97d0cc31cbac450cec30794ecaf30d1a78e3
  13. 0xc2ea6f7cdcf0c6904201c0d186a72f2a6fa2d355f41deec0e55aad057d5b8897
  14. 0xf01d425f0c05ac504062d9b471f06fbf10480b3526efb1ee77bb71aebd05f0de
  15. 0x67c99d356de30f9cfab88af48fbaa18909ef230dd09947e84da060bc03aca929
  16. 0x1068659ec8f2bcf26e4ad39786557a8c45d60e5ebba4fce2fb9962b2c9c59920
  17. 0xf9973981f80219d4f00fa9186b40a8144accc0c9875572fb79eaea312a21a187
  18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
  19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
Day root
0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
Chained
0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
Published
On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af

How to check it · This row as JSON