Decipher.

An Ethereum block builder built on rbuilder, run by a small research team studying block building, bundle conflicts and builder auctions.

Send orderflow

RPC endpoint	`https://rpc.debuilder.wtf`
Methods	`eth_sendBundle` `eth_cancelBundle` `eth_sendRawTransaction`
Bundle fields	`txs`, `blockNumber`, `minTimestamp`, `maxTimestamp`, `revertingTxHashes`, `replacementUuid`, `refundPercent`, `refundRecipient`
Rate limit	20 requests/s per IP (burst 40), 1 MB per request

Example:

curl -s https://rpc.debuilder.wtf \
  -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_sendBundle",
       "params":[{"txs":["0x02f8..."],"blockNumber":"0x1925f00"}]}'

Builder identity

Block extraData	`Decipher (debuilder.wtf)`
Fee recipient	`0x8a107dcb1262d94f482dc11231d090b05a7aeb94`
Builder BLS pubkey	`0x8583711e8bf004b53266b03128e42702b260e37718ed3d8b97f8928bbed13540dca3209551092a864abcc92a5bd00553`
Relays	Flashbots, Ultrasound, Agnostic

Orderflow principles

Bundles and private transactions are used only to build our blocks. We do not share them with third parties.
We do not frontrun, sandwich or otherwise trade against the orderflow we receive.
Transactions from sanctioned (OFAC SDN) addresses are excluded from our blocks.

Contact

Telegram: @Yunsikkkk