← The evidence ledger
Evidence row 123842
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://verifylite.hydratinghealingtouch.workers.dev/ping
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- e5c83fd75c21ddeb291f7732c434a7dab6e709c7d08061e1171462afafbbc8e5
- Leaf
- 0x51d65da177ee610847e5c7dbca3d5f09e2572cd1a393b5d83b7ce93665a78ced
What was observed
{
"endpoints": [
[
"x402",
"https://verifylite.hydratinghealingtouch.workers.dev/ping"
]
],
"name": "VerifyLite",
"owner_address": "0xb33134504393140cfd963d76f62907d660880932",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb33134504393140cfd963d76f62907d660880932",
"scheme": "exact"
}
],
"description": "Returns pong with the server time and an optional echo string, after a real x402 USDC payment on Base. Useful for testing that an agent's x402 payment client, wallet, and budget limits work end to end before using costlier services, and for monitoring. The cheapest paid call VerifyLite offers.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"echo": "hello"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"echo": "hello",
"paid": true,
"pong": true,
"serverTime": "2026-10-21T17:00:00.000Z",
"tool": "ping"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"echo": {
"description": "Optional text to echo back (up to 256 characters).",
"type": "string"
}
},
"required": [],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"s": [
"cdp_sdk_server"
]
},
"schema": {
"$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": "2026-10-23T22:08:15.732Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-23T22:08:15.55Z"
},
"resource": "https://verifylite.hydratinghealingtouch.workers.dev/ping",
"serviceName": "VerifyLite",
"tags": [
"ping",
"x402",
"test",
"payments",
"utility"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Returns pong with the server time and an optional echo string, after a real x402 USDC payment on Base. Useful for testing that an agent's x402 payment client, wallet, and budget limits work end to end before using costlier services, and for monitoring. The cheapest paid call VerifyLite offers."
}What the leaf hashes
{"body":"e5c83fd75c21ddeb291f7732c434a7dab6e709c7d08061e1171462afafbbc8e5","id":123842,"kind":"listing","method":"baseline/1","observed_us":1793025623777182,"prev":null,"subject":"x402_bazaar:https://verifylite.hydratinghealingtouch.workers.dev/ping","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0x51d6792520a9ecc14b11eecd2c0f3b522b8a89829fd3ef3fdced4a92813f1bd7
- 0x30939c0e230e905d30aa312eb4bae4cd064bd27e0d9710acdc49686cb707f86b
- 0x0955d95c27bf1c07c9428e371726cf4ef91424ec0a683e3a671b72096e4d1467
- 0x9d410b568b8dcea96f7a25f94936228de83112ed05f7bc618fbd508c52fa14c8
- 0xe67b293e95c0247001b4ec9a9e7c2379272ab1e0cdca0695a7c0a631c9fefedc
- 0xf8cccd45b95e8ca4cb1c3877a0e5f80702146fd2cc16b5815cafeeadf0f439af
- 0x7a76189b1ed4c64a3a16b8acdeb61a318434c8868e4c770468c6445ab7e7a8fb
- 0x691ab812669d4fbacbfa4c2be2269232de22687068b345eb1fe8ac1d5fdd4590
- 0x73d07b953afcdab9a96ff7540ac7a2cd9dfbbb3b041d6ad864c055e7276f1e75
- 0xfca9ff78b92c71fdaab1acd2d14980882031b639cac9549f1cb05364a670b1da
- 0xa5ad1076807e948ee46c6ef88026aa55418c25a28faa967ff0fc965aa97c5a48
- 0x94dd4ed7cf198df741ccda83eacc422aadb31119fc6e84c4a6d2f023453b7960
- 0xd830c52e1e8095e014510110592485afcb02b9c9a36f85653e4891a8de941246
- 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
- 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae