← The evidence ledger
Evidence row 457374
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://apexfaucet.xyz/api/x402/arc-hook-risk
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- d48daa2fea40086156e350aad1dbdb3c31de6786fab77cb020027a4c0a525c7b
- Leaf
- 0x77b8741ac97d201eadb55f8f03e129dd83ece9941a7df8dd3ce1cfd8a4a2f670
What was observed
{
"endpoints": [
[
"x402",
"https://apexfaucet.xyz/api/x402/arc-hook-risk"
]
],
"name": "Arc Uniswap v4 hook risk",
"owner_address": "0xd334ab5151c624cada654854e2879903dc4217ed",
"raw": {
"accepts": [
{
"amount": "3000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"credentialTypes": [
"authorization"
],
"name": "USD Coin",
"note": "Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.",
"replayHeader": "X-PAYMENT-BASE",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
"scheme": "exact"
},
{
"amount": "3000",
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"credentialTypes": [
"authorization"
],
"name": "USDC",
"note": "Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.",
"replayHeader": "X-PAYMENT-ARC",
"rpc": "https://rpc.mainnet.arc.io",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:5042",
"payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
"scheme": "exact"
},
{
"amount": "3000",
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"name": "GatewayWalletBatched",
"note": "Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"version": "1"
},
"maxTimeoutSeconds": 604900,
"network": "eip155:5042",
"payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
"scheme": "exact"
},
{
"amount": "3000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "GatewayWalletBatched",
"note": "Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"version": "1"
},
"maxTimeoutSeconds": 604900,
"network": "eip155:8453",
"payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
"scheme": "exact"
},
{
"amount": "3000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
"scheme": "exact"
},
{
"amount": "10000000000000000",
"asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
"extra": {
"credentialTypes": [
"authorization"
],
"decimals": 18,
"minUsd": 0.01,
"name": "World Liberty Financial USD",
"note": "BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.",
"symbol": "USD1",
"version": "1"
},
"maxTimeoutSeconds": 300,
"network": "eip155:56",
"payTo": "0xd334AB5151C624cAdA654854E2879903Dc4217eD",
"scheme": "exact"
},
{
"amount": "10000000000000000",
"asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
"extra": {
"credentialTypes": [
"authorization"
],
"decimals": 18,
"minUsd": 0.01,
"name": "United Stables",
"note": "BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.",
"symbol": "U",
"version": "1"
},
"maxTimeoutSeconds": 300,
"network": "eip155:56",
"payTo": "0xd334AB5151C624cAdA654854E2879903Dc4217eD",
"scheme": "exact"
}
],
"description": "Arc pre-trade risk in microseconds, no chain call: pass ?hook=0x… and get the verdict read straight out of the Uniswap v4 permission bits encoded in the hook address. It tells you what the hook is ALLOWED to do (run on every swap, rewrite the amounts, touch liquidity), not what it does: permission is not behaviour. No trap rate is quoted - the 83.7% we used to state came from a pre-buy sell quote and was withdrawn on 2026-09-22 after a real round trip sold 10 of 10 pools with that signature.",
"extensions": {
"bazaar": {
"info": {
"input": {
"discoverable": true,
"method": "GET",
"queryParams": {
"hook": "0xB780642659b782b672f20516fC267d5069252044"
},
"type": "http"
},
"output": {
"example": {
"data": {
"historicalTrapRate": null,
"hook": "0xb780642659b782b672f20516fc267d5069252044",
"method": "Uniswap v4 permission bits read from the hook address. No base rate is given: the 2026-09-17 rates were measured with a …",
"note": "Instant (no chain call). For a definitive answer on one pool use the exit check, which actually attempts the round trip.",
"ok": true,
"permissionBits": "10000001000100",
"permissions": [
"beforeInitialize",
"afterSwap"
],
"verdict": "can rewrite swaps",
"why": "This hook runs on every swap AND may rewrite the amounts, which is the machinery that can block or tax a sell. Permissio…"
},
"ok": true,
"paid": 0.003
},
"schema": {
"properties": {
"data": {
"type": "object"
},
"ok": {
"type": "boolean"
},
"paid": {
"type": "number"
}
},
"type": "object"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"hook": {
"description": "The 0x hook address from a Uniswap v4 pool key.",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
}
},
"required": [
"hook"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"queryParams"
],
"type": "object"
},
"output": {
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791909159/bazaar-icons/f4adc3a60c4cd07b.png",
"lastUpdated": "2026-10-27T09:07:22.475Z",
"quality": {
"lastCalledAt": "2026-10-27T09:07:22.475Z"
},
"resource": "https://apexfaucet.xyz/api/x402/arc-hook-risk",
"serviceName": "Arc Uniswap v4 hook risk",
"tags": [
"uniswap v4",
"hooks",
"arc",
"token safety",
"honeypot"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Arc pre-trade risk in microseconds, no chain call: pass ?hook=0x… and get the verdict read straight out of the Uniswap v4 permission bits encoded in the hook address. It tells you what the hook is ALLOWED to do (run on every swap, rewrite the amounts, touch liquidity), not what it does: permission is not behaviour. No trap rate is quoted - the 83.7% we used to state came from a pre-buy sell quote and was withdrawn on 2026-09-22 after a real round trip sold 10 of 10 pools with that signature."
}What the leaf hashes
{"body":"d48daa2fea40086156e350aad1dbdb3c31de6786fab77cb020027a4c0a525c7b","id":457374,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100973710310,"prev":null,"subject":"x402_bazaar:https://apexfaucet.xyz/api/x402/arc-hook-risk","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (273461 rows).
- 0x77b86fddf1bb6ee2e37fe76cecd2e27876f236438972534ebfb06e8bd59dcc6a
- 0xd88e924150e3592d40d611129fbbaaa187283885353c33ca9eddd0daa911d56e
- 0xe0e2abcec414b0e09cfb8acca7802578b63ef7beb334013ee93a3c6709d4f5e3
- 0x7341c9e3557f32b906c83dfa7a068011a9c99ec75af1f3b9a17aaafca7cb79e9
- 0x143f9256f2d3b210e52c7b5935c0af36c8fa752987eb6de952b01160994a8792
- 0xccf76c718ba8c054657ab02d151ab19e37730b8fd083db155b408f389866930c
- 0x9c8501943cc91babe366fe2b54808970af27a109305d272f5068bc05170529f7
- 0xceebe9073adf9f2890f42ab7b08d84751f9304f361a63cd865ebe56ff47b06fa
- 0xd5913625e97b662dd4236a406dd2ad2e3fc25035d0fb612f0128118fa7279a62
- 0xdca7be968b847f07be720f9ef981d9dd268c59dc5459d336797e4bf9be51192c
- 0x5c178a60ac8a8b1697e714e16bb750246722a6136f279e1719bdab90c149fd7b
- 0x30b0c1fa0ae50435d58b5b7f993dde40a8bcc3f5956d7e3d31946f1a957684b4
- 0x8f2d125f5fe55a24b5da16577766eeaa13f24a272bb4c1c016f423ae917da681
- 0x9848c068b1371232529d2b5738fdc45b854c57da041b69ea7c9e112b14e2d9d1
- 0x275720ecabb68df33eee92ae4fd70572a8d952d6c61c061c2869cfc3217aa5c5
- 0x23cf9bb4337ee8be7fcae368fd69d24c62c11fb45882127b4cd919bb96a19996
- 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
- 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
- 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4