Evidence row 70224

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.wsystem.dev/einvoice/validate"
    ]
  ],
  "name": "api.wsystem.dev/einvoice/validate",
  "owner_address": "0xfbbe4924a9d36e1de2b90cf4f8ee6e03f978714c",
  "raw": {
    "accepts": [
      {
        "amount": "30000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xfbbe4924a9d36e1de2b90cf4f8ee6e03f978714c",
        "scheme": "exact"
      }
    ],
    "description": "Validate an EU e-invoice (UBL, CII or ZUGFeRD/Factur-X PDF) against official EN 16931 and XRechnung rules; errors with rule IDs and plain-English fixes",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "xml": "<Invoice xmlns=\"urn:oasis:names:specification:ubl:schema:xsd:Invoice-2\">...</Invoice>"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "error_count": 1,
              "errors": [
                {
                  "fix": "XRechnung needs a Buyer reference (Leitweg-ID for German public buyers).",
                  "message": "The element Buyer reference (BT-10) must be provided.",
                  "rule_id": "BR-DE-15"
                }
              ],
              "profile": "XRechnung",
              "valid": false
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "base64": {
                      "description": "XML or ZUGFeRD/Factur-X PDF, base64",
                      "type": "string"
                    },
                    "xml": {
                      "description": "Invoice XML (UBL or CII)",
                      "type": "string"
                    }
                  }
                },
                "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": "2026-10-20T13:19:40.223Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-20T13:19:39.735Z"
    },
    "resource": "https://api.wsystem.dev/einvoice/validate",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Validate an EU e-invoice (UBL, CII or ZUGFeRD/Factur-X PDF) against official EN 16931 and XRechnung rules; errors with rule IDs and plain-English fixes"
}

What the leaf hashes

{"body":"4749a323a82fb26aad8c7eb9f1573010ba54a8fd03fcd66fce4a0b375677332b","id":70224,"kind":"listing","method":"baseline/1","observed_us":1793025480023742,"prev":null,"subject":"x402_bazaar:https://api.wsystem.dev/einvoice/validate","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. 0x3fb151a4cb8229ca60e859180c4d9b70fd49412b325a1a19a48d8f7b7575356d
2. 0x2d39591eeaff02622daf0d1371f56000c2d05f1ce91a9935ffd97a9776e2e09f
3. 0x723d1968c3b57d2d7eb8cff25a4732d8c84a2a4389fcbdcb0433ee734d28ba4f
4. 0x8f8368e3b92c41669b23d3e4790a40a45b64ce0fa17b68f5d2f95a5194016ae7
5. 0xdb4712b0fcbb0da561e48abec50f6290164801d2afd78782fa2444f6d4f672e3
6. 0xacdf5a2e25d692406fa00ffa7ef4b7464e33053930d3efab9fe751c036e6fac0
7. 0x50f0dd742d71d8aa2d561c9b68946bc37cda0bf009f0c2d58a639ccbdc9014c8
8. 0x3e0d01cd0d70ff798ef95e3822928136ddea9d0804ff417bc5e97dee2834a560
9. 0xedc286c7d2fbededbeafd67ccbb189a587dfcede01b6f29077581f911149d0eb
10. 0x3aa1f01bbb88cb01a9628a415794e8a8fba10d2a03d54c08d2e3a38ce00d02cf
11. 0xa4d1745f134661a77f8f2bfd58422252c41790ede9f0de54979c915510f5d550
12. 0x1afc0318a98c6dbb5a80e5cb86eba22b844e3f3b185a16f17290e29ab7410f55
13. 0x215f432600b78f2e7c9629cd10ce6ce4b7f3351b0b71f3f2c7dcb8e650f6cd63
14. 0x7f594f5609f388d64d3cda87b5631d393ee8300bb09bad71f150113a5886ee33
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae