Evidence row 409311

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": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-26T11:01:16.654Z"
    },
    "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":"4c78414031ff2c0706d7fee1141e251ab74a0cb3e41cbcc4efe48cafbb1c0a30","id":409311,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080369429940,"prev":81165,"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. 0x5d3cc88e8931b59f903ee55b75d5ce4c53564f2a66a40b5c79dd5f3c143493ea
2. 0xa6d9414e8efeccea38d3f9e052bd34909087aff59e96407b90cbaf93a8dd7005
3. 0x7e7bd89b0b877e3e21b433e167d11c7b3ac090bb92d7eb0d931d6c9c84863e33
4. 0x0f78eb3c9e48edb1eceba23bff4d0f6dcd19a287a1daffd591018bacae87be9e
5. 0x592c674c5338075c58536064e7abe98b2b0cfb9a7c3a0c3b2bbcfadf5ad0190c
6. 0x0cf8b9928c71ca56ab9ad75d6e1e1eedd65a63531c0adc06050f92fff3503586
7. 0x2f8e41607c55fc17bbd8642941070ab6abf8bdfdd556c3903f461d139d8d1fcf
8. 0x0dbccaefb386ca7168ccf1a9b10e23866f3dd8cacf6bd561d23a22e4e47a6763
9. 0x748b73e53ac4b81808f7eb6fb897713d40278caa15d3ceda5bae3e2c5565fa6a
10. 0x3d22d634571ba72c183e235f8080fb451105de49426266f015f163e6a5c09b1b
11. 0x2852744b47bc9835dedf6e89aec877e57a0e0ed97b36700cae3173aefff12cb5
12. 0x548136c1e3ccb412bb6e8b0e92df8bd9db651531331fa2a46332b9c2956172f5
13. 0xeaf6b21867367f85a965f982b6593c42eafe4fdf74e94b675523a6478de49a54
14. 0x4277e02be0b5d91d78bc2247e37d402572474ba896c2e8f45765c8dc4e244d36
15. 0x6f00f0da417f4126951ba8ba9b7962c847e91f5c61364ad9ad47e5f979698a60
16. 0x23cf9bb4337ee8be7fcae368fd69d24c62c11fb45882127b4cd919bb96a19996
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4