Evidence row 76794

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://iot.halowerk.com/v1/battery-degradation"
    ]
  ],
  "name": "iotwerk_battery_degradation",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "eip712Domain": {
            "chainId": 8453,
            "name": "USD Coin",
            "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "version": "2"
          },
          "name": "USD Coin",
          "network_name": "Base Mainnet",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "recipient": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Applies a transparent heuristic: cycle fade scales with equivalent full cycles and depth-of-discharge exponent; calendar fade scales with square-root time and a temperature factor. Coefficients are caller supplied or declared defaults. This is not cell-chemistry validation, warranty advice or a safety prognosis.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "bodyType": "json",
            "exampleUrl": "https://iot.halowerk.com/v1/battery-degradation/schema#/requestExample",
            "method": "POST",
            "schemaUrl": "https://iot.halowerk.com/v1/battery-degradation/schema#/inputSchema",
            "type": "http"
          },
          "output": {
            "example": {
              "calendar_fade_percent": 3.133982,
              "coefficients_used": {
                "calendar_fade_per_sqrt_year_percent": 1.8,
                "cycle_fade_per_full_cycle_percent": 0.012,
                "depth_exponent": 1.3,
                "temperature_doubling_c": 10
              },
              "cycle_fade_percent": 4.181482,
              "estimated_remaining_capacity_ah": 92.684536,
              "estimated_total_fade_percent": 7.315464,
              "method": "transparent cycle-plus-calendar capacity fade heuristic"
            },
            "exampleUrl": "https://iot.halowerk.com/v1/battery-degradation/schema#/outputExample",
            "schemaUrl": "https://iot.halowerk.com/v1/battery-degradation/schema#/outputSchema",
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": true,
          "properties": {
            "input": {
              "additionalProperties": true,
              "properties": {
                "bodyType": {
                  "const": "json"
                },
                "exampleUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "method": {
                  "const": "POST"
                },
                "schemaUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "type": {
                  "const": "http"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType"
              ],
              "type": "object"
            },
            "output": {
              "additionalProperties": true,
              "properties": {
                "exampleUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "schemaUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "type": {
                  "const": "json"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T00:14:25.799Z",
    "quality": {
      "l30DaysTotalCalls": 13,
      "l30DaysUniquePayers": 7,
      "lastCalledAt": "2026-10-26T00:14:25.374Z"
    },
    "resource": "https://iot.halowerk.com/v1/battery-degradation",
    "serviceName": "iotwerk_battery_degradation",
    "tags": [
      "iot",
      "battery",
      "degradation"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Applies a transparent heuristic: cycle fade scales with equivalent full cycles and depth-of-discharge exponent; calendar fade scales with square-root time and a temperature factor. Coefficients are caller supplied or declared defaults. This is not cell-chemistry validation, warranty advice or a safety prognosis."
}

What the leaf hashes

{"body":"60ea45c225c977f14b5f93519476fd99af7deb0877bc2a1bb92622e7cb2800c3","id":76794,"kind":"listing","method":"baseline/1","observed_us":1793025492947936,"prev":null,"subject":"x402_bazaar:https://iot.halowerk.com/v1/battery-degradation","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. 0xb91ed0bf82df9ed1decc7045c6f3fc4091112e01f228ee897dfda6c30ff4ff46
2. 0xfc5a58250fa2890553bb0c3d7aff1adc1be7938b6e4da9417c5dbdb5595614ea
3. 0xf03de9e5c91377840da60f70d38f9939537d0442c045dd44fd48aa8ce9e7e432
4. 0xaa4531b3a4a5d1651aa14662e52c40883274c79095630a5978309f57703eb3a2
5. 0x223737de366d2b4f4289e67cbf3b792a72ae249ffd3a2bee9baf6dff69d82a43
6. 0xac61dc82efb1799bcb079421e39715974632b92b6fcad81390e7b83fa5f4e8f2
7. 0xba71c853a31195546c8a978df29d4a6a9ab5b5cc1557b71ac3720b881ebac5ad
8. 0x65cc943f202f3250a30462031380fe446298ee92f6f8127fdfebd3ee8134dc42
9. 0x2690027586151aef25bffaaa23dbe6062fb829109685064346cf0542b92a73ec
10. 0x2a5c6878834071db08774384e91dbce1a180bcb1f079fcc809e29d3efca761f5
11. 0xcf50b54d8921f0c22877e0b8d6b8393a1954218f000f7cac374e9f40a024f700
12. 0xb6efd79902cac6d5a402ebecb8069402f00961ab80cd71b4d647fbc686d975ec
13. 0x2f43fe2b2533a5f40c107c114e458e226102f5f8ae91f097e964345880e30928
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae