> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fx.meme/llms.txt
> Use this file to discover all available pages before exploring further.
# Deployed contracts
> Arc mainnet addresses, the R6 deployment manifest, and direct contract reads.
FX's **V6 revision 6** contracts are deployed on **Arc mainnet, chain ID 5042**. Use this page to identify the release and connect to its onchain interfaces.
The public app and indexed market API are not hosted yet. At the latest [release check](/reference/release-status), new launches were paused and official FX was not registered. Direct contract reads are available.
## Network
| Setting | Value |
| ---------------------- | --------------------------------------- |
| Network | Arc mainnet |
| Chain ID | `5042` |
| Public RPC | `https://rpc.mainnet.arc.io` |
| Explorer | [Arc Explorer](https://explorer.arc.io) |
| Native gas asset | USDC |
| Release ID | `arc-mainnet-r6-f66530bb` |
| Deployment start block | `21239186` |
See [Arc's network setup](https://docs.arc.io/arc/references/connect-to-arc) for wallet configuration. Arc exposes native USDC at 18-decimal precision and its ERC-20 interface at 6 decimals. They represent the same balance; do not count them as separate assets.
## Core contracts
| Component | Arc mainnet address |
| ---------------------- | -------------------------------------------------------------------------------------------------------------------------- |
| Uniswap v4 PoolManager | [`0x8366a39CC670B4001A1121B8F6A443A643e40951`](https://explorer.arc.io/address/0x8366a39CC670B4001A1121B8F6A443A643e40951) |
| Currency-pool registry | [`0x214c9023034b1e31D024c8084AF0e4151E659Bf2`](https://explorer.arc.io/address/0x214c9023034b1e31D024c8084AF0e4151E659Bf2) |
| Token factory | [`0x95067766eF16f7849942185AD12de1816d3c3C2C`](https://explorer.arc.io/address/0x95067766eF16f7849942185AD12de1816d3c3C2C) |
| FX hook | [`0xc555d361dEe2062A0560678D3f663784887265Cc`](https://explorer.arc.io/address/0xc555d361dEe2062A0560678D3f663784887265Cc) |
| Canonical positions | [`0x5580191B3F867Fb5B5EDdA52cb3FE8010a48949F`](https://explorer.arc.io/address/0x5580191B3F867Fb5B5EDdA52cb3FE8010a48949F) |
| Launch deployer | [`0x02D1a2387f97CD124D8e7f7Fb3c0eD58Bb3E76f8`](https://explorer.arc.io/address/0x02D1a2387f97CD124D8e7f7Fb3c0eD58Bb3E76f8) |
| Router | [`0x36A99B29dE4B186Ca8fC70ca95c3CB45596ACBE4`](https://explorer.arc.io/address/0x36A99B29dE4B186Ca8fC70ca95c3CB45596ACBE4) |
| Quoter | [`0x04B9d79AEaB5d3a5a568994122317c9753C1d627`](https://explorer.arc.io/address/0x04B9d79AEaB5d3a5a568994122317c9753C1d627) |
| Market lens | [`0xce3Cfd35c59eF9C3c2F68c3eF4E3Cf9123B9a935`](https://explorer.arc.io/address/0xce3Cfd35c59eF9C3c2F68c3eF4E3Cf9123B9a935) |
The router is the spending target for the documented trading flow. The quoter simulates execution; it does not hold a spending allowance. Use the matching R6 ABI and check [quote and settle](/developers/quote-and-settle) before constructing an order.
## Revenue and policy
| Component | Arc mainnet address |
| ---------------------- | -------------------------------------------------------------------------------------------------------------------------- |
| Revenue vault | [`0xc89d0a58b4DaA9aAd99315A3D8C8dcB83e875A56`](https://explorer.arc.io/address/0xc89d0a58b4DaA9aAd99315A3D8C8dcB83e875A56) |
| Revenue collector | [`0x92a66BDFa306E16db38E65976d4a6d9F4fd67f88`](https://explorer.arc.io/address/0x92a66BDFa306E16db38E65976d4a6d9F4fd67f88) |
| Conversion registry | [`0x04284F8713426867Ea3ea7F2556ba5DB994bc447`](https://explorer.arc.io/address/0x04284F8713426867Ea3ea7F2556ba5DB994bc447) |
| Buyback executor | [`0xe84aA2B1Ca63749C6569adAf368AB642c08ABf80`](https://explorer.arc.io/address/0xe84aA2B1Ca63749C6569adAf368AB642c08ABf80) |
| Liquidity observations | [`0x3914e82Ed6fdbb7DccFDad0310278575340e7b44`](https://explorer.arc.io/address/0x3914e82Ed6fdbb7DccFDad0310278575340e7b44) |
| Release policy | [`0x9828DadEa3D438D2566fCeb85F245089C1E6C39c`](https://explorer.arc.io/address/0x9828DadEa3D438D2566fCeb85F245089C1E6C39c) |
See [architecture](/reference/architecture) for each component's role and [production settings](/reference/release-status#deployed-execution-policy) for the installed policy.
## Currencies and pair
| Asset | ERC-20 decimals | Arc mainnet address |
| ----- | --------------: | -------------------------------------------------------------------------------------------------------------------------- |
| USDC | 6 | [`0x3600000000000000000000000000000000000000`](https://explorer.arc.io/address/0x3600000000000000000000000000000000000000) |
| EURC | 6 | [`0xbEf5f6d51CB62b58e6A8f77868681825C6fe21c1`](https://explorer.arc.io/address/0xbEf5f6d51CB62b58e6A8f77868681825C6fe21c1) |
Both quote assets and the EURC/USDC relationship were enabled at the documented snapshot. New launches remain subject to the separate global pause and current admission checks.
The registry's pair ID is:
```text theme={null}
0xec255c898470f77aaf513f8f692d75de66b4bc973fcb01907b9d24b1562d53d4
```
The admitted external currency pool uses this PoolKey on the PoolManager above. Its fee value is in parts per million: `500` means **0.05%**.
```json theme={null}
{
"currency0": "0x3600000000000000000000000000000000000000",
"currency1": "0xbEf5f6d51CB62b58e6A8f77868681825C6fe21c1",
"fee": 500,
"tickSpacing": 10,
"hooks": "0x0000000000000000000000000000000000000000"
}
```
The relationship is discovered through the registry. An empty `pairs` array in the deployment manifest is intentional when `registryDiscovery` is enabled; it does not mean the registry has no admitted pair.
## Read the current state
This example uses `viem` and makes read-only requests to the public Arc RPC. It does not need a wallet.
```javascript theme={null}
import { createPublicClient, http, parseAbi } from 'viem';
const client = createPublicClient({
transport: http('https://rpc.mainnet.arc.io'),
});
if (await client.getChainId() !== 5042) {
throw new Error('Expected Arc mainnet');
}
const registry = '0x214c9023034b1e31D024c8084AF0e4151E659Bf2';
const factory = '0x95067766eF16f7849942185AD12de1816d3c3C2C';
const blockNumber = await client.getBlockNumber();
const abi = parseAbi([
'function launchesPaused() view returns (bool)',
'function protocolToken() view returns (address)',
'function count() view returns (uint256)',
]);
const [launchesPaused, protocolToken, tokenCount] = await Promise.all([
client.readContract({
address: registry, abi, functionName: 'launchesPaused', blockNumber,
}),
client.readContract({
address: factory, abi, functionName: 'protocolToken', blockNumber,
}),
client.readContract({
address: factory, abi, functionName: 'count', blockNumber,
}),
]);
console.log({
block: blockNumber.toString(),
launchesPaused,
protocolToken,
tokenCount: tokenCount.toString(),
});
```
A zero `protocolToken` address means official FX has not been registered. Read the factory again after registration; a token's name or symbol does not establish official status.
The live FX proxy at `https://fx.meme/api/rpc` accepts approved JSON-RPC read requests. It is a read service, not a signing or transaction-submission endpoint.
## Release manifest
All 15 contract code hashes below matched the mainnet bytecode at block **21,240,866**. Explorer links identify the contract accounts; source-code verification by an explorer is a separate property.
The fingerprint is Keccak-256 of the UTF-8 compact JSON serialization of the `release` object, with object keys sorted recursively and array order preserved. Pin the expected fingerprint independently of responses that supply market data.
```text theme={null}
0x7ee2db5d09e61daf68de50c7ac68dd7649c5b280478770cc0aea1627fdcdec69
```
This manifest identifies the deployed contracts and currencies. It does not configure a hosted app or indexed market API.
```json theme={null}
{
"release": {
"schema": 2,
"protocolVersion": 6,
"releaseRevision": 6,
"releaseId": "arc-mainnet-r6-f66530bb",
"environment": "mainnet",
"chainId": 5042,
"nativeBalanceAsset": "0x3600000000000000000000000000000000000000",
"contracts": {
"poolManager": {
"address": "0x8366a39CC670B4001A1121B8F6A443A643e40951",
"codeHash": "0xbd3881180b547f5fe817545743cfb4343e96b1bc6640dcd70c106b0066e95626"
},
"registry": {
"address": "0x214c9023034b1e31D024c8084AF0e4151E659Bf2",
"codeHash": "0xf33364ef2280f7f45e4965d146046d2c5e7215e90e463fffc192c2199eac4def"
},
"factory": {
"address": "0x95067766eF16f7849942185AD12de1816d3c3C2C",
"codeHash": "0x257bffd086d3ae81126b57316db295efd2bd62c8b54364c59dcc6c2ae8757328"
},
"hook": {
"address": "0xc555d361dEe2062A0560678D3f663784887265Cc",
"codeHash": "0x4f835be8be9e16efa01f2a253780f195ab52274a91816420f354e9e854029722"
},
"positions": {
"address": "0x5580191B3F867Fb5B5EDdA52cb3FE8010a48949F",
"codeHash": "0x07d4e14354ba56ff3594aecf77041ccf89398395ec752036079a30851be065bb"
},
"launchDeployer": {
"address": "0x02D1a2387f97CD124D8e7f7Fb3c0eD58Bb3E76f8",
"codeHash": "0x47e1fe28fdc8f7a84ced05c9bc5d96a63a37a798d892ba5a6c4397c5cb821d40"
},
"router": {
"address": "0x36A99B29dE4B186Ca8fC70ca95c3CB45596ACBE4",
"codeHash": "0x20493a249d6069a22423bf830c03c32d54460e25edb7d63be61885c250beb82f"
},
"quoter": {
"address": "0x04B9d79AEaB5d3a5a568994122317c9753C1d627",
"codeHash": "0x5f337add2a7c91688ee91e5bc02a1d83010ef68d7f56158b7689daf35be707a6"
},
"revenueVault": {
"address": "0xc89d0a58b4DaA9aAd99315A3D8C8dcB83e875A56",
"codeHash": "0x297ffd96812ad224612aeff6f07ff40fcc732ba2156c454b10b84eb82d13c96f"
},
"revenueCollector": {
"address": "0x92a66BDFa306E16db38E65976d4a6d9F4fd67f88",
"codeHash": "0x27e5517dcde84a3b5c4b2d0bfb7d2fba9c62b755b9bd5725e9d4d7c7c997df1e"
},
"conversionRegistry": {
"address": "0x04284F8713426867Ea3ea7F2556ba5DB994bc447",
"codeHash": "0x197f0c6b2c71bc7cd578323416d6be0b3cc40d18baeedcb652770d16c9c06a5c"
},
"buybackExecutor": {
"address": "0xe84aA2B1Ca63749C6569adAf368AB642c08ABf80",
"codeHash": "0x93d7f4f225550a90e28076a604eea1f7a4e9fac7cb2f22441fd07ade58a8842e"
},
"observations": {
"address": "0x3914e82Ed6fdbb7DccFDad0310278575340e7b44",
"codeHash": "0x9df87e2b8048a2a81088ef70bf63167b920ea17196604cc68381ef27dc7b11f5"
},
"releasePolicy": {
"address": "0x9828DadEa3D438D2566fCeb85F245089C1E6C39c",
"codeHash": "0xc34396f66eec86c329e72affac61c2f75ce29ad0e22e403f3e83b53abc06ed86"
},
"lens": {
"address": "0xce3Cfd35c59eF9C3c2F68c3eF4E3Cf9123B9a935",
"codeHash": "0x92ff9c7887e16093fed15f174d24026893a9b53de5c2c1023146b41eb132a8d7"
}
},
"treasury": "0xc89d0a58b4DaA9aAd99315A3D8C8dcB83e875A56",
"launchFeeAsset": "0x3600000000000000000000000000000000000000",
"registryDiscovery": true,
"registryOwner": "0xf66530bbB8a48d91A48F163316aE4aD32E8e96f3",
"governance": {
"schema": 2,
"kind": "direct-owner",
"owner": "0xf66530bbB8a48d91A48F163316aE4aD32E8e96f3"
},
"assets": [
{
"address": "0x3600000000000000000000000000000000000000",
"symbol": "USDC",
"decimals": 6,
"trade": true,
"launch": true
},
{
"address": "0xbEf5f6d51CB62b58e6A8f77868681825C6fe21c1",
"symbol": "EURC",
"decimals": 6,
"trade": true,
"launch": true
}
],
"pairs": [],
"routingPools": [
{
"currency0": "0x3600000000000000000000000000000000000000",
"currency1": "0xbEf5f6d51CB62b58e6A8f77868681825C6fe21c1",
"fee": 500,
"tickSpacing": 10,
"hooks": "0x0000000000000000000000000000000000000000"
}
],
"startBlock": "21239186"
},
"hash": "0x7ee2db5d09e61daf68de50c7ac68dd7649c5b280478770cc0aea1627fdcdec69"
}
```
For the documented snapshot, the release policy's onchain `policyHash()` was:
```text theme={null}
0xb5acf5711c9e76b4851f46074c42c4ad25ddb7a3c50405e1fd4b72fea4bf5378
```
The release fingerprint covers the manifest. The policy hash covers the constructor-selected opening and buyback settings. They identify different data and should not be interchanged.