← The evidence ledger
Evidence row 17667
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://presign-guard.fizzl.eu/v1/check
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- ebf7ab26edcaff4b44c84a02d163c08cdd6db3a3234dcef97ff402b528dda41f
- Leaf
- 0x3947f0f634c8a89d89e8db07ed4c462f49b0fd381e2330efa99da5d66f086c11
What was observed
{
"endpoints": [
[
"x402",
"https://presign-guard.fizzl.eu/v1/check"
]
],
"name": "presign-guard",
"owner_address": "0x6b0f4651ed42893ab58139938175e4a69f175f25",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x6B0F4651eD42893ab58139938175E4a69f175F25",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "ATWJ82T8nRdQwZnaysB68N5EpaSvLRsQP4h6eWmaJBH9",
"scheme": "exact"
},
{
"amount": "0.01",
"asset": "524C555344000000000000000000000000000000",
"extra": {
"areFeesSponsored": false,
"invoiceId": "presign-guard.fizzl.eu POST /v1/check",
"issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
"sourceTag": 804681468
},
"maxTimeoutSeconds": 300,
"network": "xrpl:0",
"payTo": "r9xmBsRr8Ao7jRgjjxreMiAwGiCK2FGwqw",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "31566704",
"extra": {
"feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
},
"maxTimeoutSeconds": 300,
"network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
"payTo": "LOYVFSQ6ZTS2YWUW4GQ5L6VPP2TPIOXWYDACK53CPOHQQHLDMEMKJDXAX4",
"scheme": "exact"
},
{
"amount": "100000",
"asset": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
"extra": {
"areFeesSponsored": true
},
"maxTimeoutSeconds": 300,
"network": "stellar:pubnet",
"payTo": "GCH2J5UAY24YNKA65MPAATVKWRCZZRZNF3JZKYYS5MIBZPG6U7WJ6CDQ",
"scheme": "exact"
}
],
"description": "Is this transaction, approval or signature safe to sign? Check it before your AI agent or wallet signs it: pre-sign verdict (green/orange/red + reason codes) for EVM and Solana transactions, token approvals and Permit/Permit2/EIP-3009/Seaport signatures. Screens the spender or recipient wallet for OFAC sanctions and scam, phishing or theft reports, and flags unlimited allowances, plain-wallet spenders and risky tokens. Bulk: 100 checks for $0.80 via /v1/credits.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"amount": "1000000",
"chainId": 8453,
"spender": "0x000000000022D473030F116dDEE9F6B43aC78BA3",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"type": "approval"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"reasons": [
{
"code": "UNLIMITED_APPROVAL",
"details": {
"token": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913"
},
"severity": "orange",
"subject": "0x000000000022d473030f116ddee9f6b43ac78ba3"
}
],
"verdict": "orange"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"address": {
"description": "authorization: the contract the EIP-7702 authorization delegates the wallet to (",
"type": "string"
},
"amount": {
"description": "approval: amount in base units (0 = revoke)",
"type": "string"
},
"authorizationChainId": {
"description": "authorization, optional: the chain id inside the authorization, chainId (default",
"type": "integer"
},
"chainId": {
"description": "EVM chain; required for approval, transaction and signature",
"enum": [
1,
10,
56,
137,
8453,
42161
],
"type": "integer"
},
"data": {
"description": "transaction: 0x-prefixed calldata",
"type": "string"
},
"from": {
"description": "optional: your wallet; an EVM transaction is then simulated",
"type": "string"
},
"intent": {
"description": "optional: what the agent means to do, in one sentence",
"maxLength": 500,
"type": "string"
},
"lang": {
"description": "explain only: en or nl",
"enum": [
"en",
"nl"
],
"type": "string"
},
"mandate": {
"description": "optional, EIP-3009 payments: the spending mandate paid under",
"type": "object"
},
"message": {
"description": "message: the text or 0x-hex to be signed",
"maxLength": 16384,
"type": "string"
},
"method": {
"description": "message: personal_sign (default) or eth_sign",
"enum": [
"personal_sign",
"eth_sign"
],
"type": "string"
},
"network": {
"description": "xrpl: xrpl:0 (default) or xrpl:1",
"enum": [
"xrpl:0",
"xrpl:1"
],
"type": "string"
},
"nonce": {
"description": "authorization, optional: the authorization nonce",
"type": "string"
},
"origin": {
"description": "optional: the site asking (URL or hostname)",
"type": "string"
},
"spender": {
"description": "approval: who gets the allowance",
"type": "string"
},
"to": {
"description": "transaction: target contract",
"type": "string"
},
"token": {
"description": "approval: token contract",
"type": "string"
},
"transaction": {
"description": "solana: the base64 wire transaction; algorand: one base64 msgpack transaction",
"maxLength": 12000,
"type": "string"
},
"transactions": {
"description": "algorand: an atomic group, each base64 msgpack",
"items": {
"type": "string"
},
"maxItems": 16,
"type": "array"
},
"tx": {
"description": "xrpl: the unsigned transaction JSON",
"type": "object"
},
"type": {
"description": "What is about to be signed",
"enum": [
"approval",
"transaction",
"signature",
"authorization",
"message",
"solana",
"xrpl",
"algorand"
],
"type": "string"
},
"typedData": {
"description": "signature: the eth_signTypedData_v4 payload",
"type": [
"object",
"string"
]
},
"value": {
"description": "transaction: native value in wei",
"type": "string"
},
"x402": {
"description": "optional, EIP-3009 payments: the x402 accepts entry being paid",
"type": "object"
}
},
"required": [
"type"
],
"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": {
"explanation": {
"properties": {
"lang": {
"type": "string"
},
"text": {
"type": "string"
}
},
"type": "object"
},
"reasons": {
"items": {
"properties": {
"code": {
"type": "string"
},
"details": {},
"severity": {
"enum": [
"red",
"orange",
"info"
],
"type": "string"
},
"subject": {
"type": "string"
}
},
"required": [
"code",
"severity"
],
"type": "object"
},
"type": "array"
},
"receipt": {
"description": "Signed receipt binding this verdict to your request; see openapi.json",
"type": "object"
},
"subject": {
"type": "object"
},
"verdict": {
"enum": [
"green",
"orange",
"red"
],
"type": "string"
}
},
"required": [
"verdict",
"reasons"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"a": "bc_pzrclpac"
},
"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"
}
},
"x402-merchant": {
"info": {
"categories": [
"ai-agents",
"security",
"trading-signals",
"developer-tools",
"x402",
"algorand"
],
"logo": "https://fizzl.eu/logo-512.png",
"name": "Fizzl",
"website": "https://fizzl.eu"
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"categories": {
"items": {
"type": "string"
},
"type": "array"
},
"logo": {
"type": "string"
},
"name": {
"type": "string"
},
"website": {
"type": "string"
}
},
"required": [
"name"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791125199/bazaar-icons/dae343325dc2ef3d.png",
"lastUpdated": "2026-10-26T08:54:03.391Z",
"quality": {
"l30DaysTotalCalls": 13,
"l30DaysUniquePayers": 7,
"lastCalledAt": "2026-10-26T08:54:02.863Z"
},
"resource": "https://presign-guard.fizzl.eu/v1/check",
"serviceName": "presign-guard",
"tags": [
"wallet-security",
"pre-sign",
"approvals",
"sanctions",
"agents"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Is this transaction, approval or signature safe to sign? Check it before your AI agent or wallet signs it: pre-sign verdict (green/orange/red + reason codes) for EVM and Solana transactions, token approvals and Permit/Permit2/EIP-3009/Seaport signatures. Screens the spender or recipient wallet for OFAC sanctions and scam, phishing or theft reports, and flags unlimited allowances, plain-wallet spenders and risky tokens. Bulk: 100 checks for $0.80 via /v1/credits."
}What the leaf hashes
{"body":"ebf7ab26edcaff4b44c84a02d163c08cdd6db3a3234dcef97ff402b528dda41f","id":17667,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025327146789,"prev":null,"subject":"x402_bazaar:https://presign-guard.fizzl.eu/v1/check","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).
- 0x3948470ade7119afa1cab6187206a63bda874cdcbad4ec807818b3d55bacfed8
- 0x57a9fd18d401c16bbc457c0ea13f4e691826ea865fa0b6cc27fdd9694944e382
- 0xdf57710382385e263e68355039fcf1223aa4473b5f5494ed83d9b266029b18f6
- 0x6906fab4be2d288ddbdd583613193246559fdb5baddcb539dd00f3a776e00723
- 0xd377591be4f5cc28bc8a0a4eb278ae07a1db8a34a3ea86b1c85fca3dcfd503d1
- 0x999cb1c6c2c9c228ba84c4d5f998af1b5478790b8d5409c69bec16d7590d16a3
- 0x9b0c1eb8906db9d03b59a080d3a5e3d486404bda8051ceb5c4a9822e8ffabb14
- 0x4a8fd1c3dd83b2edc3c7b391a9077b03739cf4e699e6680bec83db0a5724f57d
- 0xd80d4eae73bbd3fdccb88b8241b520b340e41387dbe44d61dd6bbef84d1347f3
- 0x523b8ac4b1e261a073661101852ada4310c46af0ed03f362d2ef83a301a47101
- 0x04a1aa6c1d916326b08791d1568a512f10ac6aaee806ec4073570b0a6b1b64af
- 0x18cc4431e4bbe45ee72defb9bb3318434364bf71c883055c6197fa7102ec601a
- 0xe2214b3d6a48396930d1739b02ea366de2aac5337c9b9ff2aff28cecf6518139
- 0x7f594f5609f388d64d3cda87b5631d393ee8300bb09bad71f150113a5886ee33
- 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae