← The evidence ledger
Evidence row 3768360
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://kette.halowerk.com/security/pre-sign
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- ff3794e0f080468a0165872dd0e6f5170e593669245680dd3ab3e0906252e97a
- Leaf
- 0xc48ca69217268eea5e23d334ca32b79556f2ef5bdbd4575f02e35fa2781f3776
What was observed
{
"endpoints": [
[
"x402",
"https://kette.halowerk.com/security/pre-sign"
]
],
"name": "HALOWERK kettenwerk",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "3000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"asset": "USDC",
"assetTransferMethod": "eip3009",
"eip712Domain": {
"chainId": 8453,
"name": "USD Coin",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"version": "2"
},
"name": "USD Coin",
"network_name": "Base Mainnet",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"scheme": "exact"
}
],
"description": "Check EVM permissions before signing. Decodes bounded standard token calls and EIP-712 encoding, applies exact raw-unit limits and caller address policy, flags unlimited grants and wrong chains. Optional current-chain simulation uses the existing simulation service. Unknown semantics remain orange. No signing or broadcasting; sanctions and complete drainer registries are not covered.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"data": "0x095ea7b30000000000000000000000002222222222222222222222222222222222222222ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
"to": "0x1111111111111111111111111111111111111111",
"type": "transaction",
"value": "0"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"chain": {
"enum": [
"ethereum",
"base",
"arbitrum",
"optimism",
"polygon",
"bsc"
],
"type": "string"
},
"chain_id": {
"maximum": 9007199254740991,
"minimum": 1,
"type": "integer"
},
"data": {
"maxLength": 131074,
"pattern": "^0x([0-9a-fA-F]{2})*$",
"type": "string"
},
"from": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"message": {
"maxLength": 8000,
"type": "string"
},
"method": {
"enum": [
"eth_sign",
"personal_sign"
],
"type": "string"
},
"origin": {
"maxLength": 2000,
"type": "string"
},
"policy": {
"additionalProperties": false,
"properties": {
"allowed_recipients": {
"items": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"maxItems": 100,
"type": "array"
},
"blocked_addresses": {
"items": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"maxItems": 100,
"type": "array"
},
"max_native_wei": {
"maxLength": 78,
"pattern": "^(0|[1-9][0-9]*)$",
"type": "string"
},
"max_token_units": {
"maxLength": 78,
"pattern": "^(0|[1-9][0-9]*)$",
"type": "string"
}
},
"required": [],
"type": "object"
},
"simulate": {
"default": false,
"type": "boolean"
},
"to": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"type": {
"enum": [
"transaction",
"typed_data",
"message"
],
"type": "string"
},
"typed_data": {
"type": "object"
},
"value": {
"maxLength": 78,
"pattern": "^(0|[1-9][0-9]*)$",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-06T11:11:43.29Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-06T11:11:42.893Z"
},
"resource": "https://kette.halowerk.com/security/pre-sign",
"serviceName": "HALOWERK kettenwerk",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Check EVM permissions before signing. Decodes bounded standard token calls and EIP-712 encoding, applies exact raw-unit limits and caller address policy, flags unlimited grants and wrong chains. Optional current-chain simulation uses the existing simulation service. Unknown semantics remain orange. No signing or broadcasting; sanctions and complete drainer registries are not covered."
}What the leaf hashes
{"body":"ff3794e0f080468a0165872dd0e6f5170e593669245680dd3ab3e0906252e97a","id":3768360,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793996823596908,"prev":null,"subject":"x402_bazaar:https://kette.halowerk.com/security/pre-sign","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (303443 rows).
- 0xc48c9a1b4c10d11dbe9f135914a672f890c54830463e970480b25896a6106f95
- 0xe724829a37a46f5f5b9f0d318aad4da04e3c6913197a5f1cdd7fbb7db472440f
- 0x7a9747f644a9eb2a786bbf5bffa8842ddf6122cc6b423569ed8b581ac8309cf2
- 0x4bbb3c716ff3028d38710ff85f71ba807488caac47e8f5346bfe257792ee857e
- 0x8a5f39291c3a499627e3e4a2882df9d6bc5af90c15d2b88927cc810b37cc451f
- 0xb383f28c1bbb3664009d09b21a7f78a98d316e419e53f69d09bb6af85ce2769f
- 0xf6bf07e4123c72ec52ebde71f0b7ed8e6c8608e414d97aa68725f4ca7a655d40
- 0x7d02f5da8cd1bf58857a417dac88d55da4549d777faf368ea1a2a4f94408b3e8
- 0xcf266a3aeb7eef53ad8d4c79f1070391fe1c89aa7598d1ca232384df9ba923ae
- 0xa25047492aa331f5625597a38fe0db35cd8a3a9f9642ec611ddb2ba1fde5132f
- 0x8d583524833a2cc448020852a1c6343bfded9dae06b700f0ccf71ef0179126c9
- 0xd9122a2ede3214c4738cf4073668e7c76c5be40020d6213d3d8a10b902a18bd1
- 0x924241b8420d4d4319e17028e9b8589ddddc47fe0266839c1519510a8c3ae3ca
- 0xf2bbeea848b333047f129c8686a1cb6572f51a517261b7356309c2239f36fcaa
- 0xa1718cabb225bcfa7e8d30571095a3947ec7e2f279fac8d2d2530d955a7def96
- 0xd47209ac9b2ac71257b5162800ce4482f8cf7ea04f074033847ad335ca758d32
- 0xf19d501fdbc28e10c3244253daf0c37c4752659eae14a7cba585a18c7df9ce0d
- 0xd422a75f6c3780ed53eca52b50bf40b8f17dc14cffb804142e44fc9f2672029d
- 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948
- Day root
- 0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f
- Chained
- 0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3
- Published
- On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1