# EIP-4844 implementation See [EIP-4844 meta-spec](https://hackmd.io/@protolambda/eip4844-meta) for specs and implementations ## EIP-4844 blob TX definition (including fee market changes of EIPs PR 5707) ![](https://i.imgur.com/bj2Gu0r.jpg) ## Blob TX wrap data NOT through EVM ![](https://i.imgur.com/GgfLkvo.png) ## Engine API design ![](https://i.imgur.com/4AhTvo2.jpg) ## Blob TX lifetime ![](https://i.imgur.com/3EEtziT.png) ## Blob TX propagation ![](https://i.imgur.com/EgS4xvn.png)