Evidence row 1507345

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": 2,
      "l30DaysUniquePayers": 2,
      "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":"116773fae662f348b925543067d5d7a94a19f644b8b3d323ff5526d6eae672fa","id":1507345,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793472686748779,"prev":1260834,"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 2026-10-31 (246033 rows).

1. 0x634ac2bbcce7e4fba18dda4862c2c877905e0f7cf692b95ff4867803078b312f
2. 0xcf517ea42dfe84d994b2b04d453ca62ea6a0bb7677e1ad584b1b718f910b5c21
3. 0x9c875c64373dddc18c3a197468303c83a0fff1c82ed0eefc8708c4332361c6e7
4. 0x1e83aecbc5dfcc313e54c7145064416561349277b8253a5246890d139d3b6d89
5. 0x9a216a664228635f64ef8def341183c65763d816243e228889c05855c360b25e
6. 0x355717c73058d7d2f6cfca9f7cd8f89af16d9da1b7695a9c7ed1325152f5e3b8
7. 0x6ab53ce8e55c4113a8268b2c9c2dc5149b75915d7a9a6a5165a635e4b54d4d18
8. 0xe3c20d55dec31da60fcea0dacd7a6b1709df56ab63d08804608bac9f0560c4d0
9. 0x61c8a459e9cdd7a73037a0b9c308a6d27a5adc6d7d2088bede0b1bd67ecb8f80
10. 0xba5f13c2f88ca323b43a0a762822af9797e7e3f011de95016481986bc67efbbf
11. 0xe93904fc8171b4d06c03fda9c0d529a59373a855e339ebece8a6c4526487ce37
12. 0x0803749a6c0457ef88083c9fb661fd656a5d91b0f931b526b99d4ceab19a2410
13. 0x0727ef0f630aa87a16f1f0e27c3aac747bb64d1d660c56d561e3babc1dfd3085
14. 0xe765fc7bdfb534be348bf6984775b8261507431e58900f7a1ab269c53c5b1e8b
15. 0xb9a00c724331b305deaa876d5d2baf53b847ff3c7ce37abb0ae1653b2534aad5
16. 0xad4540f06e3fdfe46524d8592f8d854d4849e16217bc047eaf024f0abebe34b0
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0