Evidence row 123928

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://wallet.openverbs.com/v1/validate"
    ]
  ],
  "name": "Address validation",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Validate a blockchain address. Supply `chain` to check against a specific chain, or omit it to auto-detect. Ethereum addresses report their EIP-55 checksum state; Bitcoin covers base58check (P2PKH/P2SH) and bech32/bech32m segwit (P2WPKH/P2WSH/P2TR). A well-formed but invalid address returns `valid:false` — not an error.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "address": "example",
              "chain": "ethereum"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "address": {
                      "description": "The address to validate.",
                      "maxLength": 120,
                      "minLength": 1,
                      "type": "string"
                    },
                    "chain": {
                      "description": "Optional chain to validate against.",
                      "enum": [
                        "ethereum",
                        "bitcoin"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "address"
                  ],
                  "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"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T06:13:48.746Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T06:13:48.48Z"
    },
    "resource": "https://wallet.openverbs.com/v1/validate",
    "serviceName": "Address validation",
    "tags": [
      "validate wallet address",
      "ethereum address validation",
      "bitcoin address validation",
      "crypto address checker",
      "blockchain address validation"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Validate a blockchain address. Supply `chain` to check against a specific chain, or omit it to auto-detect. Ethereum addresses report their EIP-55 checksum state; Bitcoin covers base58check (P2PKH/P2SH) and bech32/bech32m segwit (P2WPKH/P2WSH/P2TR). A well-formed but invalid address returns `valid:false` — not an error."
}

What the leaf hashes

{"body":"fd99d2a76c9c85f2d6dd5954c5a311026c7ff235833f90b7d8fb1eab3e225b46","id":123928,"kind":"listing","method":"baseline/1","observed_us":1793025623883758,"prev":null,"subject":"x402_bazaar:https://wallet.openverbs.com/v1/validate","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. 0x3338e9abf73b1e785c429271e9c4b3d25b6c0dba5f0948b45fbe5ab190849418
2. 0x2f4574a407f03947d38d8ce54c1fb5476437730af7d669a7f5b5cc54f1e893c4
3. 0x94dd9a7ef5df5a718db6b63bcfa76b72877387f5a9a0dcb66327589e05721cdd
4. 0xaf154f8ffe90ee350fc24bde214b2a3a64412069797857a9540b3424948c2488
5. 0x1012273b64b17cbc1268694749d1780b42cbe52095b5b2d75ac4b7b102055958
6. 0xccce23ef16998bb7f71a32c18f9fc4bf8ab9e7fdbbde6392ebdca66313752fca
7. 0x6ef48833756f55026a914184ca3ca03dd5e85b7b077ec9e3ffdd85f9a77ab5ec
8. 0x6eba5e03440b1ec2bdfe672bc51502f078731071a483901564599615c787795f
9. 0xb2bab65867ba7d25c34235548a5a9e41e04bfe9b838908d08d5c38942b76a15d
10. 0x147a93b247f471325988f4856b3ff7043d5e5fa80b374a5deccea90eab3af0fe
11. 0xc99ea26556ddad6b2fde7887de8c0190d3a7c645402227c5a281ba47e02a67e5
12. 0x2f4617d7a962f32849050ad5649d9dc4f962fd8618073cfa8519e6f862dfcef8
13. 0x08de74b7fb265ddb83e4c673da8a94e5f71829b2e6e7464c71c5138e450f2217
14. 0x4338355a835617a26aa0bfcc971e84eb030d84e2aa840e3c8af958921dd080c7
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae