Evidence row 426849

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-niche-briefs.fly.dev/v1/hazmat-sds-16section-validator"
    ]
  ],
  "name": "SDS 16-section validator",
  "owner_address": "0x847f54ae8ddfd71ed7bc930c1f7a73576fab03a9",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x847f54ae8dDFD71ed7bC930C1f7a73576FAb03A9",
        "scheme": "exact"
      }
    ],
    "description": "GHS SDS section order and signal-word consistency check.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "ghs_revision": "osha_hazcom_2024_rev7",
              "signal_word": "Warning"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-10-25",
              "disclaimer": "Educational reference and automated checklist only; not legal advice.",
              "flags": [],
              "input": {
                "ghs_revision": "osha_hazcom_2024_rev7",
                "signal_word": "Warning"
              },
              "regulations": [
                "29 CFR 1910.1200 (HazCom 2024, GHS Rev.7)"
              ],
              "required_elements": [
                "1 Identification",
                "2 Hazard(s)"
              ],
              "risk_level": "low"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "ghs_revision": {
                      "description": "Framework",
                      "enum": [
                        "osha_hazcom_2024_rev7",
                        "eu_clp",
                        "whmis_2015"
                      ],
                      "type": "string"
                    },
                    "signal_word": {
                      "description": "Signal word",
                      "enum": [
                        "Warning",
                        "Danger",
                        "None"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "ghs_revision",
                    "signal_word"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "properties": {
                    "as_of": {
                      "type": "string"
                    },
                    "disclaimer": {
                      "type": "string"
                    },
                    "flags": {
                      "type": "array"
                    },
                    "input": {
                      "properties": {
                        "ghs_revision": {
                          "type": "string"
                        },
                        "signal_word": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "ghs_revision",
                        "signal_word"
                      ],
                      "type": "object"
                    },
                    "regulations": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "required_elements": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "risk_level": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "input",
                    "risk_level",
                    "regulations",
                    "required_elements",
                    "flags",
                    "disclaimer",
                    "as_of"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T02:38:21.796Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-27T02:38:21.587Z"
    },
    "resource": "https://x402-niche-briefs.fly.dev/v1/hazmat-sds-16section-validator",
    "serviceName": "SDS 16-section validator",
    "tags": [
      "compliance",
      "sds",
      "ghs"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "GHS SDS section order and signal-word consistency check."
}

What the leaf hashes

{"body":"cc3a6b748d0047aca330a1da93f016f41c4330e8e50902e88338d41f088cb898","id":426849,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793086313278206,"prev":409311,"subject":"x402_bazaar:https://x402-niche-briefs.fly.dev/v1/hazmat-sds-16section-validator","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. 0x88a74feebe6a521bd070736f7a131d739f773c1716179edce05527ed9aafecbf
2. 0x5484977291a5d3838893ff37868d96b9735f5df73af043b73a34c239a867ccd0
3. 0x75a2600719e84728bb26910e6c6da46e0b2377aa3cf32e17f2696cf7652d2056
4. 0xf84770acf229415a3cc3c131ffbc23584e01d6747c5c190f0a3bc814f69a8e8b
5. 0x0dd1cbfb6d825b7ce66a067ac69b766b1e8c915a59f92e78f6dfb4949f9f4804
6. 0x9e50882d2c8b86589cfb6e3af795f63548989def156ffc4ac9f8968d92b7ae70
7. 0x5674069a6387c85fc59721bc197e43432793fb8380b25f77e1c77c6416db2572
8. 0xeb8561b39cc85c49c3f25077e991cc2efeedf785f0e4ae0326c3129a2f8bc6fa
9. 0x5d0afcffd566e38395acbff3e0f80f7c0188b8af375239b643d4c38141d5763e
10. 0xc0915d85db6e7cf8815f890e81c32f1f10c778d9b6e2b605a71e893d27ed1efa
11. 0xe661124afe6da658d35cc39e5dfcb10ff9056b0c88a42fc174890e77d2c26ca5
12. 0x470f6acef0d823e6f9e5fa35684563c8f27c3d338b165b457171afc3d44d4d86
13. 0x6251e2be57e8d16b82579481d181c265d75096882014489550b74a728741f2f1
14. 0x4964f0806efde5ed25f60da2b45d78cd2e0f07d67e64aad2822f6016ad973c47
15. 0x3c500ec3d3edf0c74b87a6ca8fcd77656bfbe03db3d478bd0c184d0c88839c6b
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4