Evidence row 3767461

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://wallet.openverbs.com/v1/eip55"
    ]
  ],
  "name": "EIP-55 checksum",
  "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": "Apply the EIP-55 mixed-case checksum to an Ethereum address, regardless of its input casing. Returns the checksummed address and whether it differed from the input. Non-hex input is rejected before payment.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "address": "0x52908400098527886E0F7030069857D2E4169EE7"
            },
            "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": "A 0x-prefixed 40-hex-digit Ethereum address.",
                      "maxLength": 120,
                      "minLength": 1,
                      "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": "2026-10-08T05:39:53.54Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-08T05:39:53.272Z"
    },
    "resource": "https://wallet.openverbs.com/v1/eip55",
    "serviceName": "EIP-55 checksum",
    "tags": [
      "eip55 checksum api",
      "checksum ethereum address",
      "convert eth address checksum",
      "ethereum mixed case checksum",
      "apply eip55"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Apply the EIP-55 mixed-case checksum to an Ethereum address, regardless of its input casing. Returns the checksummed address and whether it differed from the input. Non-hex input is rejected before payment."
}

What the leaf hashes

{"body":"3ffce6c1f7953fd8a1bf5260331bda69fad6e5a9759b79914fc31ebd3016b0f8","id":3767461,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793996787468022,"prev":123926,"subject":"x402_bazaar:https://wallet.openverbs.com/v1/eip55","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-06 (303443 rows).

1. 0xb9dae20831c1c9c50dee56e625942223f1fe73061e255f6679052338270feba9
2. 0x6bb258000c3f0b4dac1e68438baa33c0e82091710500dd375d7f6a98810dc6ca
3. 0x7f51a6703ed27397512d1520b15dbce27f8f99b91358de6de109508b53bd848f
4. 0xbbd499fd9ea3d56223d46c87de48ce7ad5e021491cfcacbcbc24f71d00eacbc6
5. 0xc4cb5394774548094b9e5280cb812d49d68310800a5da490d1b6cb860d6f180b
6. 0x4e09888039503807c052db0e3a31b37876c160ff65d574ae3643395836986de2
7. 0x8a05b1dac871fe1ba9b901d4cd4b02ae463871809cca2dae657ce745bc769a51
8. 0x559662b7bf981e6533e8aca86420147563c7ed5cd9149fc335dc2d79e43a2c55
9. 0xbe82798a35c2bea444ccb6cd377bf6c65ae86e389cc0d89433cebabfb73e39f5
10. 0xc63682855b4266588da92e8b0e64d8412780bc4a5010975e8f360b27e4bf5fea
11. 0xbeb7057ebc7a734fad05d2906ffcfc07c105411649a52d3a7b28c23bedbd637f
12. 0xc3e5b880594bee1dfd7daa86e85e9656c5a320b3318dda79c6d29235441f7474
13. 0x3578ad950743beacef8bbb561a20e123f91c4aa0d7fe90a6ab21601aa2aaa1cb
14. 0x8d5a032f475d5b910fafd32cb58c0d727d8f470fcc5d6ced065d044bda372ee0
15. 0x4e2c85f79c29b95d6dfb888e9d12396c3d7208dc05aa6a6d68fe77cf5be30da5
16. 0x4a5b4dca6c638b7872bc6485359586bebc62511ba2776f1ea54dfdaa4d1a511b
17. 0xf19d501fdbc28e10c3244253daf0c37c4752659eae14a7cba585a18c7df9ce0d
18. 0xd422a75f6c3780ed53eca52b50bf40b8f17dc14cffb804142e44fc9f2672029d
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1