← The evidence ledger
Evidence row 1790972
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://guard.facts402.com/v1/guard/exit
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 9bc0a39e6605597291ca7273e08b940d911298736e3eda86569e41c4ba210a6f
- Leaf
- 0xb6b6c804f23daa4b8abe21a8d88ed824fab12abf5fdeed02fa24954d80f0bf52
What was observed
{
"endpoints": [
[
"x402",
"https://guard.facts402.com/v1/guard/exit"
]
],
"name": "Base Launch Guard",
"owner_address": "0x5498b0aa90cd56f8962cbd136df3d3769c85f149",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x5498b0Aa90cd56F8962CBd136DF3D3769C85f149",
"scheme": "exact"
}
],
"description": "Exit liquidity check for an open Base token position: simulates selling your position (USD size or raw token amount) on the deepest pool and returns net received, price impact / slippage, the largest position that exits under 3% impact, the measured sell tax and an EXIT_TRAP flag (> 15% impact). For trading agents monitoring memecoin positions; cheap enough to poll.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"position_usd": 2500,
"token": "0x4ed4e862860bed51a9570b96d89af5e1b0efefed"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"amount_tokens": null,
"block": 53330000,
"chain": "base",
"chain_id": 8453,
"data_sources": [
"Base mainnet JSON-RPC (block-pinned eth_call / eth_getCode / eth_getStorageAt, state-override trade simulation)"
],
"disclaimer": "Automated on-chain facts and rules-based flags. Not investment advice.",
"exit": {
"data": {
"amount_tokens": "574780000000000000000000",
"exit_trap": false,
"max_position_usd_for_3pct_impact": 3620,
"net_received_quote": "216250000000000000",
"net_received_usd": 2434.92,
"pool": {
"address": "0xc9034c3e7f58003e6ae0c8438e7c8f4598d5acaa",
"fee": 3000,
"kind": "uniswap_v3",
"quote_reserve_usd": 119650.42,
"quote_token": "0x4200000000000000000000000000000000000006",
"stable": null
},
"position_usd": 2500,
"price_impact_pct": 2.31,
"sims_used": 4,
"trade_simulation_reverted": false,
"untaxed": false
},
"detail": null,
"reason": null,
"status": "ok"
},
"generated_at": "2026-10-31T12:00:00+00:00",
"position_usd": 2500,
"simulation": {
"data": {
"approve_ok": true,
"buy_ok": true,
"buy_tax_pct": 0,
"content_origin": "third_party_untrusted",
"gas_buy": 118402,
"gas_sell": 126930,
"gas_transfer": 34811,
"honeypot": false,
"pool": {
"address": "0xc9034c3e7f58003e6ae0c8438e7c8f4598d5acaa",
"fee": 3000,
"kind": "uniswap_v3",
"quote_reserve_usd": 119650.42,
"quote_token": "0x4200000000000000000000000000000000000006",
"stable": null
},
"revert_reason_untrusted": null,
"sell_ok": true,
"sell_tax_pct": 0,
"transfer_ok": true,
"transfer_tax_pct": 0
},
"detail": null,
"reason": null,
"status": "ok"
},
"token": "0x4ed4e862860bed51a9570b96d89af5e1b0efefed"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"description": "Exactly one of `position_usd` / `amount_tokens`.",
"oneOf": [
{
"required": [
"position_usd"
]
},
{
"required": [
"amount_tokens"
]
}
],
"properties": {
"amount_tokens": {
"description": "Token amount in RAW units (the token's smallest unit, i.e. amount * 10^decimals) as a decimal string",
"pattern": "^[1-9][0-9]{0,77}$",
"type": "string"
},
"position_usd": {
"description": "Position size in USD for the exit-liquidity simulation (default 500)",
"maximum": 10000000,
"minimum": 1,
"type": "number"
},
"token": {
"description": "Base mainnet (chain id 8453) ERC-20 token contract address",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
}
},
"required": [
"token"
],
"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": {
"additionalProperties": false,
"properties": {
"amount_tokens": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
]
},
"block": {
"type": "integer"
},
"chain": {
"const": "base",
"default": "base",
"type": "string"
},
"chain_id": {
"const": 8453,
"default": 8453,
"type": "integer"
},
"data_sources": {
"items": {
"type": "string"
},
"type": "array"
},
"disclaimer": {
"const": "Automated on-chain facts and rules-based flags. Not investment advice.",
"default": "Automated on-chain facts and rules-based flags. Not investment advice.",
"type": "string"
},
"exit": {
"additionalProperties": false,
"properties": {
"data": {
"anyOf": [
{
"additionalProperties": false,
"properties": {
"amount_tokens": {
"type": "string"
},
"exit_trap": {
"type": "boolean"
},
"max_position_usd_for_3pct_impact": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
},
"net_received_quote": {
"type": "string"
},
"net_received_usd": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
},
"pool": {
"additionalProperties": false,
"properties": {
"address": {
"type": "string"
},
"fee": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
]
},
"kind": {
"type": "string"
},
"quote_reserve_usd": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
},
"quote_token": {
"type": "string"
},
"stable": {
"anyOf": [
{
"type": "boolean"
},
{
"type": "null"
}
]
}
},
"required": [
"kind",
"address",
"quote_token",
"fee",
"stable",
"quote_reserve_usd"
],
"type": "object"
},
"position_usd": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
},
"price_impact_pct": {
"type": "number"
},
"sims_used": {
"type": "integer"
},
"trade_simulation_reverted": {
"default": false,
"type": "boolean"
},
"untaxed": {
"default": false,
"type": "boolean"
}
},
"required": [
"pool",
"position_usd",
"amount_tokens",
"net_received_quote",
"net_received_usd",
"price_impact_pct",
"max_position_usd_for_3pct_impact",
"exit_trap",
"sims_used"
],
"type": "object"
},
{
"type": "null"
}
],
"default": null
},
"detail": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null
},
"reason": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null
},
"status": {
"enum": [
"ok",
"unavailable"
],
"type": "string"
}
},
"required": [
"status"
],
"type": "object"
},
"generated_at": {
"type": "string"
},
"position_usd": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
},
"simulation": {
"additionalProperties": false,
"properties": {
"data": {
"anyOf": [
{
"additionalProperties": false,
"properties": {
"approve_ok": {
"type": "boolean"
},
"buy_ok": {
"type": "boolean"
},
"buy_tax_pct": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
},
"content_origin": {
"const": "third_party_untrusted",
"default": "third_party_untrusted",
"type": "string"
},
"gas_buy": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
]
},
"gas_sell": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
]
},
"gas_transfer": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
]
},
"honeypot": {
"type": "boolean"
},
"pool": {
"additionalProperties": false,
"properties": {
"address": {
"type": "string"
},
"fee": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
]
},
"kind": {
"type": "string"
},
"quote_reserve_usd": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
},
"quote_token": {
"type": "string"
},
"stable": {
"anyOf": [
{
"type": "boolean"
},
{
"type": "null"
}
]
}
},
"required": [
"kind",
"address",
"quote_token",
"fee",
"stable",
"quote_reserve_usd"
],
"type": "object"
},
"revert_reason_untrusted": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
]
},
"sell_ok": {
"type": "boolean"
},
"sell_tax_pct": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
},
"transfer_ok": {
"type": "boolean"
},
"transfer_tax_pct": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
}
},
"required": [
"pool",
"buy_ok",
"transfer_ok",
"approve_ok",
"sell_ok",
"buy_tax_pct",
"transfer_tax_pct",
"sell_tax_pct",
"honeypot",
"gas_buy",
"gas_transfer",
"gas_sell",
"revert_reason_untrusted"
],
"type": "object"
},
{
"type": "null"
}
],
"default": null
},
"detail": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null
},
"reason": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null
},
"status": {
"enum": [
"ok",
"unavailable"
],
"type": "string"
}
},
"required": [
"status"
],
"type": "object"
},
"token": {
"type": "string"
}
},
"required": [
"token",
"block",
"generated_at",
"data_sources",
"position_usd",
"amount_tokens",
"simulation",
"exit"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-31T23:00:27.209Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-31T23:00:26.444Z"
},
"resource": "https://guard.facts402.com/v1/guard/exit",
"serviceName": "Base Launch Guard",
"tags": [
"base",
"exit-liquidity",
"slippage",
"price-impact",
"memecoin"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Exit liquidity check for an open Base token position: simulates selling your position (USD size or raw token amount) on the deepest pool and returns net received, price impact / slippage, the largest position that exits under 3% impact, the measured sell tax and an EXIT_TRAP flag (> 15% impact). For trading agents monitoring memecoin positions; cheap enough to poll."
}What the leaf hashes
{"body":"9bc0a39e6605597291ca7273e08b940d911298736e3eda86569e41c4ba210a6f","id":1790972,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793559939276646,"prev":null,"subject":"x402_bazaar:https://guard.facts402.com/v1/guard/exit","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (302406 rows).
- 0xb6b6bc020280628b5c232c22db0c20789fb979c9552be83dd484b5f456e2864a
- 0x24d8ae2bdc59081ac4b12a1c813c15b8cde8c9bccd98007e8f3a6f7d5c9c99e3
- 0xe1cc81842cba4b286321419b09aedf6f9c52f5003a2f405948dbd4480b256d8c
- 0x05aa3d5ee6921a6ca638cc1d343c990f0ec803b0ffffd75a19d8a4592c768575
- 0x31fc2f934dd778f48624d1f32a41e8407d9721dbb6c40a7f2bd087a43ac97de9
- 0xbfc0aa343c3bc5f2a47820019e6e2851d8708ab087ae62e64a898ecd3ef252d4
- 0x0d4d69791555080058ef4cf6be9b9d6fa55a3f961c0254d8187506040910f350
- 0x47d9e7f59d628e4f1bf75f881e7e06fb2eedcf4c039f3d784e3e1b6338de0828
- 0x93701b851ede2f65108c6780ed3073cc5d8da4f6e0ce9b8a54572438acf1f3fa
- 0xcaed32e7954238c6509f688f95c8d4b6375bc826fb326aeaceb4b3cbb288ed5f
- 0x02e783015037749a4bb4053ab1c9ca1dbefff8f07dc9bdb57eacd42c8f7c3438
- 0x08435cad5871c85fafbdc184b887ae7d8fa79b7851ddef3135e53565dbf4c927
- 0x76bd6c29668276bc9bcae1a73c60a4d02ab25f5e47f437d7c2c27bab58a536a3
- 0xc4208f09c5a97556dbf0e04ca82216f9056e3cf547ebb46cc61036bfd76910cb
- 0xf6217f3e2344dd9bf8c6e296c4729fbf7611d258b93c45e1bbe5f62e65e8e714
- 0x8339aa87501c4d4f8b38a13e480a7c563957e09fb5711bed7cf189d6787f960d
- 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
- 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
- 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910
- Day root
- 0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3
- Chained
- 0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4
- Published
- On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90