Evidence row 3968165

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/chemicalElementLookup"
    ]
  ],
  "name": "Sindri",
  "owner_address": "0x548efd4f4d4a5c3669dbb4cbb2b1a637feeec5f6",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x548eFd4f4d4A5C3669dbb4CBB2B1A637FeeEc5F6",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "APer2AbhckyMWyJanW2MZ2eRLcpL9Lmhks8rkmXfqjRG",
        "scheme": "exact"
      }
    ],
    "description": "Periodic table element lookup by symbol or atomic number, returning name, atomic mass, and category. Covers the most commonly referenced elements.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "symbol": "Au"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "atomicMass": 196.97,
                "atomicNumber": 79,
                "category": "transition metal",
                "name": "Gold",
                "params": {
                  "symbol": "Au"
                },
                "symbol": "Au"
              },
              "ok": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "atomicNumber": {
                      "description": "Atomic number, e.g. 79. Provide this or symbol.",
                      "type": "number"
                    },
                    "symbol": {
                      "description": "Element symbol, e.g. \"Au\" (case-insensitive). Provide this or atomicNumber.",
                      "type": "string"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "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"
        }
      },
      "builder-code": {
        "info": {
          "a": "x402_api_vendor",
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "maxItems": 11,
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "lastUpdated": "2026-10-19T11:32:10.751Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-19T11:32:10.592Z"
    },
    "resource": "https://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/chemicalElementLookup",
    "serviceName": "Sindri",
    "tags": [
      "periodic table",
      "chemical elements",
      "chemistry reference"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Periodic table element lookup by symbol or atomic number, returning name, atomic mass, and category. Covers the most commonly referenced elements."
}

What the leaf hashes

{"body":"b0061f2e6a876c48b6fd1f34fc984c0ed9926feb03dccabab40636b81fa7325b","id":3968165,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1794083487580237,"prev":1507345,"subject":"x402_bazaar:https://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/chemicalElementLookup","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-07 (195826 rows).

1. 0xd0e42b7ea2aebc3d6333320fc3f7a3f23d2ae5939c9e3190e252c3b21985ee7a
2. 0x4fcba83f1290aadb790bcef81333e2b207d085a900aa15f1046698114ddfed4a
3. 0xdc035eb4aa3df3533026483954e1d0cc45a1a6f44b103ff0277df7c85b11fe3e
4. 0xc0162feb7c07f95213f62691527fdeca29d6f9834ad06781862f0e826d8726a5
5. 0xe82675c7c319be9167efcad570a532e992afc9dc751f8d0749b8c3f1ce9ffab4
6. 0xfd5dabe16c5ce299e47a2af1f2d5d6ff30412d8e85fc4b4f8aced3739c3ab08e
7. 0x6b788f8485c190b5983a91cecab275fab9abe171424ce7c6731289c859e5c110
8. 0xaf556bb465a61c8d2f9db5ee5afebdeb205f9c7c0938018be0139cad47ae0e02
9. 0x03633f9a4c52ffab0980d0445c663837b220b995cab12e8896f87d2dd02379a0
10. 0xfc15b46400109cdd73d4f60888b6b42622c64899fa59ada04f42c5a85033121e
11. 0xbd05de35fe983f31c17301a61ad64e2add3b07208f0d840686769673561f99ee
12. 0x545539d5020efafe565795aa9195835738d76b9d2a3697d796a6eef68f6b5620
13. 0xa10d60ff982a97344d5fa585644f4cb22119ab8b4ecb385c2e4e5957c1e34829
14. 0x7bd88dbcdea7b744679f2ef6bbd4a71cd8814c46cc02d4ab11745e97813ff9cf
15. 0x8d59bf422a3db88dd24fca3b92cb99d28bd5632a71eaf94e51b925600c735b27
16. 0x3235c8a33ac14441f1a12a6515f670286d48b48fa98eb1dce45d902e053abe01
17. 0x9ea7c2ecc6985da4b761b0f9096b7858b3ac8e3e47717c3840537fb2ff31c6df

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa