Evidence row 2199481

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://energy.halowerk.com/research/quick"
    ]
  ],
  "name": "HALOWERK Energy",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "decimals": 6,
          "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",
        "scheme": "exact"
      }
    ],
    "description": "Research and market-monitoring agents buy this endpoint to answer a focused question with a compact live market snapshot.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "query": "Summarize the German electricity market for the next 24 hours."
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "current_price": {
                "end": "2026-07-13T23:00:00.000Z",
                "price_ct_kwh": "13.96",
                "price_eur_mwh": 139.64,
                "start": "2026-07-13T22:00:00.000Z"
              },
              "query": "Summarize the German electricity market for the next 24 hours.",
              "source": "EPEX (aWATTar)",
              "timestamp": "2026-07-13T22:51:16.972Z"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "query": {
                      "minLength": 1,
                      "type": "string"
                    },
                    "sources": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "query"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-02T14:53:28.936Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T14:53:28.625Z"
    },
    "resource": "https://energy.halowerk.com/research/quick",
    "serviceName": "HALOWERK Energy",
    "tags": [
      "compute-scheduling",
      "depin-workloads",
      "carbon-aware-compute",
      "battery-dispatch",
      "power-trading"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Research and market-monitoring agents buy this endpoint to answer a focused question with a compact live market snapshot."
}

What the leaf hashes

{"body":"0c408429421cac744e5c9834344b33c64830dd82cf0ce043f85e236cbb9c50d6","id":2199481,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646771663181,"prev":null,"subject":"x402_bazaar:https://energy.halowerk.com/research/quick","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. 0xb43449a23c014825f9fd5b2b9797e6b09b7545d2e94db0a6c34498afdc4e5101
2. 0x66badda3d712c457fb9447e8608f432bf6d38c67b7486c00da93009b7435bf3a
3. 0x4a4afcd22ac16eb800b4a784d984a53a493392c493adbf950a980693dd393a36
4. 0x996f87f6259ac8c9815a57bd742dd121387d6ab33bc8cfb3a65c74497abda14c
5. 0x883c4b57b18fdda1b3cda7370fe9d8b7411fb8892718c0ff7b834c19d255838b
6. 0xa405501f6c4ae1c5f48553e68c93ef8b9286f0ad5225ec48e406beb99c1fbb90
7. 0x2426f846c2aaea78beda2bb359396156c3b17dc8c9cac76db563adc2245a725b
8. 0x1d52be750fefe03cb93d8bfad474e0486daf366a736ffca5d07f28a41ccfa180
9. 0x777153037f08492e395a617afb074ba5be3fafb0998c754ec11e5369c7f7fb00
10. 0x74da005d328a1fc0d3e212efba48a8af218648b31ea47c886eba2d2523ab1fa0
11. 0x4b73edf36be1455061b42d181bf1261a1a1aab171bf37e6107e4dae40d9756e1
12. 0x21e290c87b8dfbee1c890c9b97a09ed0f5503884eaeabff86472db1c091c14cd
13. 0x8f3b097427a1bfae26e9231cb5b00552011a27ad93aa4c0d3e267190fcbbb962
14. 0x08da04eef748b7ac08271324db18913501d72c52afa240bf3f08b6da46e3b97f
15. 0x834b6b9a36b42da183e2542785e8d2d7548ace455268a81922edbe6020cef644
16. 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af