Evidence row 125513

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-tools-production-2755.up.railway.app/tools/qr"
    ]
  ],
  "name": "x402 tools",
  "owner_address": "0xef7674f50f84e9b9a89af9dc40ffea56edf67d6c",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xef7674f50f84e9b9a89af9dc40ffea56edf67d6c",
        "scheme": "exact"
      }
    ],
    "description": "Generate QR codes for text, URLs, or Web3 payment requests (EIP-681 / Solana Pay). Supports PNG, SVG, JSON output with dataUri, custom colors, and batching. Flat $0.002 per call.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "data": "https://example.com",
              "format": "png",
              "size": "512"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "body": "<binary PNG bytes>",
              "contentType": "image/png"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "amount": {
                      "description": "Payment amount in token/coin units (e.g. 5 or 0.1)",
                      "type": "string"
                    },
                    "chain": {
                      "description": "Chain for payment request. Default: base for usdc/eth, solana for sol",
                      "enum": [
                        "base",
                        "ethereum",
                        "arbitrum",
                        "optimism",
                        "polygon",
                        "solana"
                      ],
                      "type": "string"
                    },
                    "dark": {
                      "description": "Hex color for dark modules, e.g. #000000 or 000000",
                      "type": "string"
                    },
                    "data": {
                      "description": "Text or URL to encode (max 2000 chars)",
                      "type": "string"
                    },
                    "datas": {
                      "description": "Batch: up to 10 comma-separated strings to encode (returns JSON with dataUris)",
                      "type": "string"
                    },
                    "ecc": {
                      "description": "Error correction level, default M",
                      "enum": [
                        "L",
                        "M",
                        "Q",
                        "H"
                      ],
                      "type": "string"
                    },
                    "format": {
                      "description": "Default: png",
                      "enum": [
                        "png",
                        "svg"
                      ],
                      "type": "string"
                    },
                    "light": {
                      "description": "Hex color for background, e.g. #ffffff or ffffff",
                      "type": "string"
                    },
                    "margin": {
                      "description": "Quiet zone in modules, 0-10, default 2",
                      "type": "string"
                    },
                    "output": {
                      "description": "Default: raw for single data, json for batch or when requested",
                      "enum": [
                        "raw",
                        "json"
                      ],
                      "type": "string"
                    },
                    "pay": {
                      "description": "Generate a Web3 payment-request QR code",
                      "enum": [
                        "usdc",
                        "eth",
                        "sol"
                      ],
                      "type": "string"
                    },
                    "size": {
                      "description": "Width in px, 64-2048, default 512",
                      "type": "string"
                    },
                    "to": {
                      "description": "Payment recipient address (0x for EVM, base58 for Solana)",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-22T21:35:38.003Z",
    "quality": {
      "l30DaysTotalCalls": 11,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-22T21:35:37.802Z"
    },
    "resource": "https://x402-tools-production-2755.up.railway.app/tools/qr",
    "serviceName": "x402 tools",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Generate QR codes for text, URLs, or Web3 payment requests (EIP-681 / Solana Pay). Supports PNG, SVG, JSON output with dataUri, custom colors, and batching. Flat $0.002 per call."
}

What the leaf hashes

{"body":"2fe97e1ecbbc04c5a256cc27f24e953eb439b95c18a0c1a865b56cc7f52459a1","id":125513,"kind":"listing","method":"baseline/1","observed_us":1793025626411328,"prev":null,"subject":"x402_bazaar:https://x402-tools-production-2755.up.railway.app/tools/qr","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xfcc6cd89b4ea8dd89e76e2206a886231d5017da562905dd793f455de7c776583
2. 0x766e026c1a5e77719bfd3f10bee30f893c9688c7643a5abfa32fd478e8ab0cd6
3. 0xd664102107794f957860d8b960c11e92fd99a9d98ab23aa90b4b75033358c89e
4. 0x3c9863e3105149d49aa4422ee4bf01a70a2b7c30073c3de0c576da32ad10b70c
5. 0x0efcf091dec9341134c9ba68b3bc20839ef66867688720509b535fc0cca44a61
6. 0xb56f97439d31acff05ce67968156989af26e99c38742630a1601611a7ca2e1d7
7. 0x628f45af5babba27297d4bec499613884f63ab861993f8f6250cdb0e78edfa6f
8. 0x3d77794f2471fd4c50d69df05e98266f5fe958cfe75dc5afce353bb2dab11def
9. 0x881216f8ea13569077ce68c3640681e030b3b6afc60317de87cf1c1c7d2f3851
10. 0xf060241fb56836c62d3feefbc60d9401bb5e9f24893c10a5f67e7eab0a959c8a
11. 0x2e09594bba0b7c90654eee0c9a8e6b9ed83ead47a7e7c90e73414beaf0ad4088
12. 0xa1d268c111b09550fdb70b6d9d0b58c94dc828b083baa8f1360300aab6230a9c
13. 0xbee644d57738676bfb20eb90d6021f364bf883a8d54f8d17e9dc4749b4074c3d
14. 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae