Evidence row 2241622

Observed 2 Nov 2026, 19:27 UTC, by sync.x402_bazaar/1.

Kind: listing
About: source_record x402_bazaar:https://medien.halowerk.com/v1/msds-extract
Recorded: 2 Nov 2026, 19:27 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 69505a2d749516679272781bae2dd0213b2a4e1415cd76c049f34059de4ff4a2
Leaf: 0x378b6a0582ab9b34526b53d943b12614d4470483d1624c403a62fb7a4670e43f

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://medien.halowerk.com/v1/msds-extract"
    ]
  ],
  "name": "HALOWERK Medien",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "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": "Downloads one public PDF up to 5 MiB through SSRF-safe redirect checks or accepts extracted text, runs pdftotext in a private temporary directory, and deterministically extracts the requested codes with their source lines. Temporary PDF and text files are deleted before the response. It does not OCR scans, identify symbols from images, translate legal wording or certify regulatory completeness.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "text": "Danger. H225 Highly flammable liquid and vapour. P210 Keep away from heat. Transport: UN 1090. GHS02."
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "oneOf": [
                    {
                      "required": [
                        "pdf_url"
                      ]
                    },
                    {
                      "required": [
                        "text"
                      ]
                    }
                  ],
                  "properties": {
                    "pdf_url": {
                      "description": "Public HTTPS URL of a text-layer PDF, maximum 5 MiB.",
                      "format": "uri",
                      "type": "string"
                    },
                    "text": {
                      "description": "Already extracted SDS text; mutually exclusive with pdf_url.",
                      "maxLength": 500000,
                      "minLength": 20,
                      "type": "string"
                    }
                  },
                  "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"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-02T15:00:24.636Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T15:00:24.213Z"
    },
    "resource": "https://medien.halowerk.com/v1/msds-extract",
    "serviceName": "HALOWERK Medien",
    "tags": [
      "msds",
      "sds",
      "chemistry",
      "pdf",
      "hazard"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Downloads one public PDF up to 5 MiB through SSRF-safe redirect checks or accepts extracted text, runs pdftotext in a private temporary directory, and deterministically extracts the requested codes with their source lines. Temporary PDF and text files are deleted before the response. It does not OCR scans, identify symbols from images, translate legal wording or certify regulatory completeness."
}

What the leaf hashes

{"body":"69505a2d749516679272781bae2dd0213b2a4e1415cd76c049f34059de4ff4a2","id":2241622,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793647628434719,"prev":null,"subject":"x402_bazaar:https://medien.halowerk.com/v1/msds-extract","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).

0x378b432b7693f714a70876d57380881218bd7e03b2d9f566a43d2ed7dae54ab3
0x8294e05b8151f2c3772289584c27c734a6c1eeb77b0a948874d7ceb0159c422c
0x990d38167aa33a159537114163fb7d62e37e2de44983c072553626103c865229
0x7fb66fb3ea69e8b8739afd07572ab67809bee8df7732c910e740d5ebf4d27c00
0xa3ead8f95f71e04108987b9a7159bb9f43cfcd85d035cfb718ad423d23bfa305
0x52460918603e9ff8de87dfe6a12cc7f669e488d3c0012902f8775c6cbb5da4ca
0xc3e3582c03e42ed99c5cf954fd9117b017f9c4e210e8bd9633ec1f295f76ef34
0x5df44e02bea135b9f6f0f605f2ca23a3ce85b31b36057c978ab15bd564e35ca3
0xf931dfb4de6f463e9be04a03061d2a894d2a6fc4cb084e0409029aa25a875aea
0x5e06d602cd18ebf9ce468e278011da5c7f2272442f259919de53dc792dcf4cce
0xf69e5498d61a996c78ff3e70adb2cc8fa90d5760f2afada04d5c046759a9c688
0x4447e402cea61275117ac4e9975eae04626bad327ccc4f13f5d1b453b487c0d6
0xa0e5887b42201f4bffeb4ff69bd41372cabcdfc84eaf669d71bc4550864cf581
0xeda95b8bf6c7d0b27dc5b32d6a6006255f41e0f6bbe80842a49daa792f4de811
0x464ce6fe060d0a6c4e810b71501e55084086148f7daf393caa14462b1a777022
0xd42916b5c6441e9c8d91ff91715af1489cb83dee26d47e7da107caa4d2a68b65
0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root: 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
Chained: 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
Published: On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af

How to check it · This row as JSON