Evidence row 409320

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-niche-briefs.fly.dev/v1/eu-reach-svhc-scip-check"
    ]
  ],
  "name": "EU REACH SVHC / SCIP check",
  "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": "REACH Art. 33 communication and SCIP notification above 0.1% w/w.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "article_type": "electronic_assembly",
              "svhc_w_w_pct": "0.05"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-10-25",
              "disclaimer": "Educational reference and automated checklist only; not legal advice.",
              "flags": [],
              "input": {
                "article_type": "electronic_assembly",
                "svhc_w_w_pct": 0.05
              },
              "regulations": [
                "REACH Art. 33 (below threshold)"
              ],
              "required_elements": [
                "keep supplier declarations current vs Candidate List"
              ],
              "risk_level": "low"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "article_type": {
                      "description": "Article type",
                      "enum": [
                        "electronic_assembly",
                        "coated_textile",
                        "molded_polymer"
                      ],
                      "type": "string"
                    },
                    "svhc_w_w_pct": {
                      "description": "Highest SVHC % w/w in article",
                      "type": "string"
                    }
                  },
                  "required": [
                    "article_type",
                    "svhc_w_w_pct"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "properties": {
                    "as_of": {
                      "type": "string"
                    },
                    "disclaimer": {
                      "type": "string"
                    },
                    "flags": {
                      "type": "array"
                    },
                    "input": {
                      "properties": {
                        "article_type": {
                          "type": "string"
                        },
                        "svhc_w_w_pct": {
                          "type": "number"
                        }
                      },
                      "required": [
                        "article_type",
                        "svhc_w_w_pct"
                      ],
                      "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": "2026-10-27T02:23:23.626Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-26T11:00:36.157Z"
    },
    "resource": "https://x402-niche-briefs.fly.dev/v1/eu-reach-svhc-scip-check",
    "serviceName": "EU REACH SVHC / SCIP check",
    "tags": [
      "compliance",
      "eu",
      "reach"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "REACH Art. 33 communication and SCIP notification above 0.1% w/w."
}

What the leaf hashes

{"body":"37ed1718b38ac9a7cc5b77dd24fe647d51168d09987fc782714474a0a9ffdd2d","id":409320,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080369477783,"prev":81181,"subject":"x402_bazaar:https://x402-niche-briefs.fly.dev/v1/eu-reach-svhc-scip-check","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. 0x1861b1b86a95ba32017cf0d9cf5a68964b7ea51ace59d5037d039545cf7023e2
2. 0xac8aa24aa3337a19c1b8e66f8115d0d6242f56859fbae9aee2229c64d64e36f9
3. 0x698a84a1bb7f0a287fed39c157813e4e3375ba3466ad61267dc4009d4f4678d6
4. 0x6052e29f147599995eaf7111dea0e61269acf54c187cbe2ccb3786df92ba5c01
5. 0x3a2653608cc5424baf9f5c8c567a106085841de47b4a8a1ba0011a0718a71f18
6. 0x3fa12da696218bc67b8a5cce01539be4956bd1f3625d73bec7d6c40abbc847d1
7. 0x9b8b54f2c6617ba0ed74828d3eb05ed26524fc9ce0306dca1f3be22317edef44
8. 0x6e380d9d62250edad692bb1859de2fd86ffeff3cf3588fc4b64ce93dfc2929a0
9. 0xca12b24621fe168cf48385f22d0eda26a617e9f06d16dac78cf4e37fc26185ba
10. 0xb2c61af36f4e381bd25df0021429da8b6682607f7465069a85856784ca9840ba
11. 0x3a308d481ae12b05ff4d5f5a64f87b375db92eb3a8ef3972c9ec3311eb3e6ae7
12. 0x7afa806e5533c63e57a18fda23b38702b370e8b298a35edc0c1de641c8ffcaec
13. 0xca0b37bb3b043ccf0f24c50fccd9c2f22b7e5290df49886008fc2ff55380fdd1
14. 0x2064e3a2b01d0d12d5079bf720a0d0125e9703c55e92de54ad40c302469ec047
15. 0x6913cb48392acb8dc5c940dcdb6e6fc889d544f85dff11da249551a5f027e688
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4