Evidence row 525684

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.halowerk.com/facilitator/health"
    ]
  ],
  "name": "HALOWERK x402werk",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "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",
        "scheme": "exact"
      }
    ],
    "description": "Asks every known facilitator what it supports and measures how long that answer takes. Reachability, supported chains, supported assets, supported schemes and the current response time are measured live on every call. Limits, and they are the important part: error rate over 24 hours, uptime over 7 days and latency percentiles CANNOT be delivered. They require a series of own measurements every few minutes, and this service keeps no such series - a single call cannot produce a p95. Those fields s",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "chain": "eip155:8453",
              "facilitators": [
                "cdp"
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "age_ms": 0,
              "cache": "miss",
              "checked": 1,
              "facilitators": [
                {
                  "endpoint": "https://api.cdp.coinbase.com/platform/v2/x402/supported",
                  "error": "Name nicht auflösbar: api.cdp.coinbase.com",
                  "error_rate_24h": null,
                  "fee_bps": null,
                  "is_own": false,
                  "key": "cdp",
                  "kinds_count": null,
                  "last_failure": null,
                  "name": "Coinbase Developer Platform",
                  "reachable": false,
                  "response_time_ms": 1,
                  "settle_latency_ms": null,
                  "status": "nicht_erreichbar",
                  "supported_assets": null,
                  "supported_chains": null,
                  "supported_schemes": null,
                  "supports_requested_chain": null,
                  "uptime_7d": null,
                  "verify_latency_ms": null,
                  "version": null
                }
              ],
              "healthy": 0,
              "measurement": "Eine Messung je Aufruf gegen den oeffentlichen Faehigkeits-Endpunkt. Keine Zahlung, kein /verify mit gebastelter Zahlung, kein /settle.",
              "note": "Eigene Facilitators sind mit is_own true gekennzeichnet.",
              "quellen": [
                {
                  "art": "oeffentlicher Faehigkeits-Endpunkt",
                  "quelle": "facilitator-cdp",
                  "url": "https://api.cdp.coinbase.com/platform/v2/x402/supported"
                }
              ],
              "stand": "2026-10-22T23:51:23.946Z",
              "thresholds_used": {
                "gesund": "erreichbar und darunter",
                "langsam": "Antwortzeit ueber 2000 ms"
              },
              "ts_fetched": 1792713083946,
              "unavailable_fields": [
                "error_rate_24h",
                "uptime_7d",
                "verify_latency_ms (p50/p95)",
                "settle_latency_ms (p50/p95)",
                "last_failure",
                "fee_bps"
              ],
              "unavailable_reason": "Diese Felder brauchen eine eigene Messreihe ueber Tage. Dieser Dienst fuehrt keine, und aus einer einzelnen Messung laesst sich weder eine Fehlerquote noch ein p95 gewinnen. Sie hier zu berechnen hiesse, eine Verteilung aus einem Punkt zu erfinden.",
              "unreachable": 1
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "chain": {
                      "description": "Optional: report whether this chain is supported, as a CAIP-2 identifier such as eip155:8453.",
                      "type": "string"
                    },
                    "facilitators": {
                      "description": "Which facilitators to check by key: cdp, xpay, x402org. Default: all known.",
                      "items": {
                        "type": "string"
                      },
                      "maxItems": 6,
                      "type": "array"
                    }
                  },
                  "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": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T10:17:17.948Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-27T10:17:17.431Z"
    },
    "resource": "https://x402.halowerk.com/facilitator/health",
    "serviceName": "HALOWERK x402werk",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Asks every known facilitator what it supports and measures how long that answer takes. Reachability, supported chains, supported assets, supported schemes and the current response time are measured live on every call. Limits, and they are the important part: error rate over 24 hours, uptime over 7 days and latency percentiles CANNOT be delivered. They require a series of own measurements every few minutes, and this service keeps no such series - a single call cannot produce a p95. Those fields s"
}

What the leaf hashes

{"body":"ea38b54eaf18aced2d5fd271ddcf4c45ac6224e11503b7472e2ab7ddd47435c9","id":525684,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124763790977,"prev":453393,"subject":"x402_bazaar:https://x402.halowerk.com/facilitator/health","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x83b86b13237e5a7a52d046893358c42c1548db087d9c37bb9d7f7f48331558b2
2. 0x1b527e227773a5edfc491944229edd5aeab60d6fcb44f9276ad36e2e38c31182
3. 0x463d9d63886717c7fe33509f8b5ead4933f9947272a415f02346ca05d10cadc2
4. 0xb5ee96e4a832096744c401623c1a18f47fc979be9a63184bc963d8541d813861
5. 0xf1073c9ac2eebfcddd55caa1a515e992562d1fa4c35106986558a465bc0db4cc
6. 0x187d84f5178409e76c6d968eb4f51d96d5b7d55fef7f2e79e682df5198a18a37
7. 0x90bc50dc29866ddfe91a47ebc5c532013784b18e66dc1e63952ed13c083245f1
8. 0x121b08209d11edca547bb73d639ded87b7e5cfd5a3d0393b2c2e397d1fff49e0
9. 0xd8c261019a96069dc1c17173a782e027b253613aa1e5cf94b4623bd7c83d6eab
10. 0xcd8ebc31a4970d231d9ce2d1cb1373a6e375df5d9f74c42470cffde84210b3da
11. 0x69ad1309fe9bbc24d7bdbeeaf4d207a05f7951e907da0dcd9dfb83b3df0c6253
12. 0xfe1f74bbe32292598f931fa103e4afbd12a8e628c1b49eb8ec0da417a917061f
13. 0x07d414626f116f3edc6ddb34183ed02538c3a805fec6db00f9d764f8fd595d04
14. 0x4964f0806efde5ed25f60da2b45d78cd2e0f07d67e64aad2822f6016ad973c47
15. 0x3c500ec3d3edf0c74b87a6ca8fcd77656bfbe03db3d478bd0c184d0c88839c6b
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4