---
# System prepended metadata

title: 'Danksharding - Dapplion, ChainSafe'
tags: [DAY, Client, '2023']

---

# Danksharding - Dapplion, ChainSafe

###### tags: `2023`, `DAY`, `Client`
{%hackmd @ethtaipei/ByQLufgQ2 %}

> Share your thoughts from here

# preface 
if data unavailable 
1. optimistic rollups: operator ccan steal funds
2. validity rollup: operator can lock the users 

=> Data Availability matters
=> who need to perfom DA checks

# 
1. Naive:  every download every thing 
2. Probablistic sampling: Blob
3. Probablistic Sampling of extended data
```
Blob - Erasure code
|-----|-------------|
```

Binding commitment and data, blockspace and blob


# Vision in 2-3 years away
1. Blobs w/ KZG
2. DAS

proto danksharding => blobs only now

# more detail
need to download data 
producing block delay disincentivize solos staker 

how to network blob: thought in progrss: Blob coupling 

# spec
`blob_sidecar_{index}`
4 index

