Evidence row 1260834

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": 3,
      "l30DaysUniquePayers": 3,
      "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":"3aeba6e00ed9d49550bf6d86aa11cc7c2b67a336cb1051e1a8f7af5e8e859bd7","id":1260834,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385487183899,"prev":118624,"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 2026-10-30 (243099 rows).

1. 0xbfe147e259330cfaa2b7f330786ff69c11ff84859e3f471c57eadd57b0cc0591
2. 0x31adbc5e087d49a024e7168dab796236620a13ffd8b8f54cb21a2826f595013f
3. 0xeb65025d96df285dc29dcd81293f462c99836f1adf17593f9730763f6cc38e84
4. 0x9cd3be9e1d7525651f43c3814741bbaafb09e56cdc756e68c71bf97138cefcf7
5. 0x6c3ba42d680eb260f98a499e492e5f6e7ed8ad0b0fe798496446fd26f18cc5fc
6. 0x3202d5a22059853905408ffed8c1d30b29e815a62fa0658d5112afdc7d8fd740
7. 0x1ad5ab2600d5638a4c4e0fcd93d3fd7ac17b74bdca94875b924f48ef3d898314
8. 0xa7971d68d323053ce13313d8a4ca9f62edd2df0fd3cf35f4f77e6073431d2807
9. 0x64569aba5a707abd5ba1db6e941bcfdefc6eda7591613f7e6e1c4642207fb6ff
10. 0x720a215e87900ab4242674870d9bae521f5d174cf40024165151a986986849fd
11. 0x4e111a231c94cd6132b734106858f8fd64ae1b632649e951400168586b5ed0a2
12. 0xc9fcf715890e0959e9a1e2a6200b4188895afcdbc3ba411bcc0423fc7c484b45
13. 0x0fe1386407f8ba162c04ac3fa7c25f73252796af4cb5a8f2d8f2ec65dc450f79
14. 0x342f35813d736e85ba1881bcb69ecc7b4b96d68e557b8417f1f4ec705ab16ab6
15. 0x9fb4eebd924fd42d4eb61d55691812de0db9242fc9c0dabb65c4054447246797
16. 0x0c59b8770d2782eb535aefbb9b2f6810bab4757f51b37e00f5147713a1de9481
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861