Evidence row 71499

Observed 26 Oct 2026, 14:38 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://bess-x402.onrender.com/v1/crypto/chain
Recorded: 26 Oct 2026, 14:38 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 99c440aa7de550755fae5d0cf0caf1cefd6901be6823d46d8db3b7bfbedce85e
Leaf: 0x0d97839052ac8ad24b9bc8ea623537fd7d1009cfd07e643bf75be5a8b9fa7910

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://bess-x402.onrender.com/v1/crypto/chain"
    ]
  ],
  "name": "EVM Chain Lookup",
  "owner_address": "0x1129a6bb9c6165ff07fdc509c107b522ca0e1871",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1129A6BB9C6165FF07fdC509c107B522CA0e1871",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x1129A6BB9C6165FF07fdC509c107B522CA0e1871",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0x1129A6BB9C6165FF07fdC509c107B522CA0e1871",
        "scheme": "exact"
      }
    ],
    "description": "Look up any EVM chain by chain ID or name (8453, base, arbitrum): chain ID in decimal and hex, native currency, public RPC URLs, block explorers and testnet flag. Use to configure wallets, RPCs or cross-chain apps.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "q": "8453"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "chains": [
                {
                  "chain_id": 8453,
                  "chain_id_hex": "0x2105",
                  "deprecated": false,
                  "explorers": [
                    "https://basescan.org",
                    "https://base.blockscout.com"
                  ],
                  "info_url": "https://base.org",
                  "name": "Base",
                  "native_currency": {
                    "decimals": 18,
                    "name": "Ether",
                    "symbol": "ETH"
                  },
                  "rpc": [
                    "https://mainnet.base.org/",
                    "https://developer-access-mainnet.base.org/"
                  ],
                  "short_name": "base",
                  "testnet": false
                }
              ],
              "count": 1,
              "query": "8453",
              "source": "chainid.network"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "q": {
                      "description": "Chain ID or name",
                      "type": "string"
                    }
                  },
                  "required": [
                    "q"
                  ],
                  "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": "2026-10-25T14:42:41.623Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-25T14:42:41.414Z"
    },
    "resource": "https://bess-x402.onrender.com/v1/crypto/chain",
    "serviceName": "EVM Chain Lookup",
    "tags": [
      "evm",
      "chains",
      "rpc",
      "chain-id",
      "developer"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Look up any EVM chain by chain ID or name (8453, base, arbitrum): chain ID in decimal and hex, native currency, public RPC URLs, block explorers and testnet flag. Use to configure wallets, RPCs or cross-chain apps."
}

What the leaf hashes

{"body":"99c440aa7de550755fae5d0cf0caf1cefd6901be6823d46d8db3b7bfbedce85e","id":71499,"kind":"listing","method":"baseline/1","observed_us":1793025482432016,"prev":null,"subject":"x402_bazaar:https://bess-x402.onrender.com/v1/crypto/chain","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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON