# Proto-Danksharding (EIP-4844) Devnet v1 User Guide [toc] ## Peering To join the network, you'll need to build and install the following geth and prysm forks: * geth - https://github.com/mdehoog/go-ethereum/tree/eip4844-devnet-1 * prysm - https://github.com/Inphi/prysm/tree/inphi/clean-slate Both geth and prysm contain preset configuration for the Proto-Danksharding network. Similar to the way geth/prysm can be configured for testnets using `--goerli` or `--ropsten`, you can configure both using `--eip4844`. ``` echo '[Node.P2P] StaticNodes = ["enode://37737cd323817af681773df6784ea3ca90b1cef899a432032a48368a41100327637031be27a6a34034788215014a7237e0d35ec97b70dded4d2333b1e6a07c0d@34.171.161.213:30303","enode://5d9beaf6ead0d2a33dcb48c6204cf2588f1dad47615d6729a3774f2733ac28cf79d74d8e6862f0b021acf746619d5257e225f7397cc1c5d9f3fa16f2b4f764b3@34.123.216.69:30303","enode://8190e9afea4c5e53611c8372fc68e6ab4ece205f23538af14853d0155eb4e8ac4f2e1035b354aaaec20cf0c7aeb0d5ff44bde92dd0b9b44b3d679459f08ee3e9@34.170.213.201:30303","enode://d20da051537a909f6d55316d55b51b5cd23fdcec166cd68a48f54d93ca382adf19220546020f95e7ff6b3eafbf8f0506469184d34a7dbbf82f31b22e523c48ee@34.68.253.231:30303","enode://17d98d030c9d2d8b2966b0556bec0856d3f9962801c9571f9f44ddac46ab899b845066481f1a83769360788a7c212cc41c66b73c105c02eb30c7e8dfbbae94d0@34.133.211.115:30303",]' > /tmp/geth_static_nodes.toml geth\ --eip4844\ --config /tmp/geth_static_nodes.toml --http\ --http.port=8545\ --http.api "engine,eth"\ --authrpc.port 8551 curl 'https://raw.githubusercontent.com/Inphi/eip4844-testnet/master/genesis.ssz' > ./genesis.ssz beacon-chain\ --eip4844\ --genesis-state ./genesis.ssz\ --subscribe-all-subnets\ --min-sync-peers=1\ --verbosity=debug\ --http-web3provider=$GETH_RPC_URL ``` TOOD: Preset beacon genesis The genesis files are available [here](https://github.com/Inphi/eip4844-testnet). ## Getting Devnet ETH You can request devnet ETH on the deployed Multifaucet: https://eip4844-faucet.vercel.app/ ## Uploading Blobs Blobs can be uploaded by sending blob transactions to geth. [blob-utils](https://github.com/Inphi/blob-utils) is a handy script that makes it easy to send blob transactions: ``` blob-utils tx\ -rpc-url <your_geth_rpc_url>\ -blob-file <blob_file>\ -to <to_address>\ -value <value>\ -private-key <account_private_key> ``` ## Downloading Blobs Blobs can be retrieved from the beacon chain network. [blob-utils](https://github.com/Inphi/blob-utils) lets you do this easily: ``` blob-utils download\ --beacon-p2p-addr <beacon_node_p2p_address>\ --slot <beacon block slot> ``` ## Endpoints If you don't have a node handy, feel free to use the following addresses to access the devnet. Execution RPC: - https://eip-4844.optimism.io Beacon nodes: - `/ip4/34.123.216.69/tcp/13000/p2p/16Uiu2HAm1u3vdfHLVnHRJtHDxSMYhHgrRVhKxBXLbQ99b4deM8Yq` - `/ip4/34.171.161.213/tcp/13000/p2p/16Uiu2HAm3fx3hL8EEzu4rvW2y74FFcgq3nFoU5Dau1JdpS2JHF9W` - `/ip4/34.123.184.76/tcp/13000/p2p/16Uiu2HAm2XQfneEyWEuAnFWsJKTEi4V1KV1P5mHPCbUS9mYAApK2` ## Troubleshooting/assistance If you have issues running the devnet, please reach out in the `#sharded-data` channel of the [Eth R&D discord](https://discord.gg/wNT8ghMbkw).