← The evidence ledger
Evidence row 51088
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://action402.vercel.app/api/execute/webhook
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 81199ff4410d03aead23bbcc8cc7c860002943414eb4e7219758230c8ec124c8
- Leaf
- 0x1f563b9f6d08ea2246ea7aa34ab979a138945b4d4ff12e2be18d31188f0c1b82
What was observed
{
"endpoints": [
[
"x402",
"https://action402.vercel.app/api/execute/webhook"
]
],
"name": "action402.vercel.app/api/execute/webhook",
"owner_address": "0x75113dcf8ce34f0338440d40270e420f8c1762b8",
"raw": {
"accepts": [
{
"amount": "3000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x75113dcF8Ce34f0338440D40270e420f8C1762b8",
"scheme": "exact"
}
],
"description": "Paid webhook/API execution for autonomous agents. Executes one public HTTPS action after x402 payment, applies retries and idempotency, then returns a signed receipt with request hash, response hash, target, status, and attempt count.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"body": {
"event": "agent.test",
"message": "hello from an x402 buyer"
},
"headers": {
"content-type": "application/json"
},
"idempotencyKey": "agent-test-001",
"method": "POST",
"retry": {
"attempts": 2,
"backoffMs": 300
},
"timeoutMs": 10000,
"url": "https://httpbin.org/anything"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"idempotentReplay": false,
"job": {
"attempts": 1,
"id": "job_...",
"status": "succeeded"
},
"links": {
"job": "/api/jobs/job_...",
"receipt": "/api/receipts/rcpt_..."
},
"mode": "x402",
"receipt": {
"id": "rcpt_...",
"signature": "hmac-sha256:..."
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"body": {
"description": "JSON body forwarded to the target endpoint."
},
"headers": {
"additionalProperties": {
"type": [
"string",
"number",
"boolean"
]
},
"type": "object"
},
"idempotencyKey": {
"maxLength": 160,
"minLength": 1,
"type": "string"
},
"method": {
"default": "POST",
"enum": [
"POST",
"PUT",
"PATCH",
"DELETE"
],
"type": "string"
},
"retry": {
"additionalProperties": false,
"properties": {
"attempts": {
"default": 1,
"maximum": 3,
"minimum": 1,
"type": "integer"
},
"backoffMs": {
"default": 250,
"maximum": 5000,
"minimum": 0,
"type": "integer"
}
},
"type": "object"
},
"timeoutMs": {
"default": 12000,
"maximum": 12000,
"minimum": 1000,
"type": "integer"
},
"url": {
"description": "Absolute public HTTPS URL to call.",
"type": "string"
}
},
"required": [
"url"
],
"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": {
"properties": {
"idempotentReplay": {
"type": "boolean"
},
"job": {
"properties": {
"attempts": {
"type": "integer"
},
"id": {
"type": "string"
},
"status": {
"enum": [
"succeeded",
"failed"
],
"type": "string"
}
},
"required": [
"id",
"status",
"attempts"
],
"type": "object"
},
"links": {
"properties": {
"job": {
"type": "string"
},
"receipt": {
"type": "string"
}
},
"required": [
"job",
"receipt"
],
"type": "object"
},
"mode": {
"enum": [
"demo",
"x402"
],
"type": "string"
},
"receipt": {
"properties": {
"id": {
"type": "string"
},
"replay": {
"type": "boolean"
},
"signature": {
"type": "string"
}
},
"type": "object"
}
},
"required": [
"mode",
"idempotentReplay",
"job",
"receipt",
"links"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-26T12:02:28.364Z",
"quality": {
"l30DaysTotalCalls": 12,
"l30DaysUniquePayers": 9,
"lastCalledAt": "2026-10-26T12:02:28.227Z"
},
"resource": "https://action402.vercel.app/api/execute/webhook",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Paid webhook/API execution for autonomous agents. Executes one public HTTPS action after x402 payment, applies retries and idempotency, then returns a signed receipt with request hash, response hash, target, status, and attempt count."
}What the leaf hashes
{"body":"81199ff4410d03aead23bbcc8cc7c860002943414eb4e7219758230c8ec124c8","id":51088,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025416904736,"prev":null,"subject":"x402_bazaar:https://action402.vercel.app/api/execute/webhook","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).
- 0x1f563dff63fd2fb746282fc2a57db40a5f14e7ffd086dc96b4027d409886903d
- 0xcdc078296c5184985a6bb76ecb153175b2fdf0cb454db458ccc4b72e3bf02442
- 0x6aa73723221d03a305b71e1097c944465aa32c7ff86516b2c75a84f666d5c1a7
- 0xb766a088218a8c38736b1927399545d69f57ecc542d2f3da8c50006a88d14118
- 0x8ae69af4bdca7da32de90b100da065d4c880372de931c37c6eba4d58741cef86
- 0x2b992c1b733c0c2ecf60fbed242a4f66ca4bbcaa9151f14f52f14c0a3086036c
- 0x01cd9e23201d40dc016ffca6f10af7f8658dd78f25c7a8a6c293e1fa9ed2e913
- 0x3854b0c10376cd7f637b1cd7aeb43625e9120ff2986d646d36c9b2b1331531e1
- 0x40d2f539386cb41d47f2fb6582b8c51cafc4c2d23e692c1ee01aa3eee6a3d77c
- 0x95d4f13dc77f1ba3eb78d20352c758152498641438c50e44cef664ea99f9747c
- 0xbfd7c325ad90588d62856113d1c0ad99de5d67958ff0f672c892809fd668fffe
- 0xbd94b9d1458901cf513783d5d2bc701e3babbcdf9219e07ee2be8fb2c897060f
- 0x42b0d9d5b53af5b0fe99cee10ce29fe484db78b92ce49f97190cc6d098651d47
- 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae