Gm Gm Folks!! We’re less than 15 days away from Arbitrum Roll Up Hack’25 💙🛠️ And before that we kick off with BUILDSTATIONS🧑‍💻 If you haven’t registered yet, now’s the time! Come connect, brainstorm, and get your project ideas rolling before the main hackathon :)) 👥 Below is

Plenty of opinions about IBW out there. Thought it’s worth sharing my perspective. There are two types of comments floating around. Some about the Indian crypto ecosystem, others about IBW or IBW Conference specifically. I will address the IBW-related ones here. Not denying

Web3 isn’t just a tech shift but the new business frontier What if value stops flowing through institutions and starts flowing through builders? What if the future isn’t about adapting but rewriting the rules altogether? Dare to defy the LIMITS? Defy’26 is HERE NOW.

@AnandaniNisha Yeah i don't really have an opinion on the team's organisation skills. Could it have been better? Maybe. However I do have a non-trivial amount of anger towards entitlement especially when someone resorts to personal attacks Voluntarily choosing to stand in a queue for an

If you’re looking for someone who can understand your product deeply and help users understand it just as well - hi, I’m available. 👋 I’m Vanshika - a Developer Advocate with an engineering mindset. I don’t just talk about products, I build with them. I work across:

Caption this @elonmusk

The Architecture Shift Old world (monolithic): - One chain does everything (execution + consensus + DA) New world (modular): - Execution (rollups) - Settlement (Ethereum) - DA (Celestia / Avail / EigenDA) - Proofs (ZK/Fraud proofs) Each layer optimized for its specific job.

Why DA matters DA is the thing most users never see but use every day. It enables: - Cheaper rollup fees - Faster finality - Independent scaling for many chains - Trust-minimized light clients - Multi-rollup ecosystems Without DA, modular blockchains simply don’t work.

EigenDA: Ethereum’s Native DA Layer EigenDA sits inside the EigenLayer restaking ecosystem. Key difference: It uses Ethereum stakers (through restaking) to secure DA. This means: - ETH’s trust guarantees - insanely high throughput - customizable DA “slices” for different

Avail: The Modular DA Layer With Namespaces 📡 Avail (ex-Polygon Avail) focuses on: -Namespaced DA -> lets rollups isolate their data -Massive block sizes -Light client-first verification It’s built for ecosystems like: - Polygon CDK - OP Stack rollups - Sovereign rollups

Celestia: The First Pure DA Network 🌙 Celestia does not run smart contracts. It does not execute transactions. It exists for one job: 🟦 Publish rollup data cheaply 🟩 Allow light clients to verify via data availability sampling 🟪 Provide scalable blockspace for modular chains

So what’s wrong with Ethereum as a DA layer? Ethereum can store rollup data… but it’s too expensive. Example: Celestia blob storage is ~90% cheaper than Ethereum calldata (2024 numbers). Rollups need cheap bandwidth, not expensive consensus. This is why modular chains split:

Why rollups need DA Rollups post: - compressed transaction data - state update commitments - calldata for verification - fraud/validity proof inputs This data MUST be: -publicly accessible -cheap to publish -easy to sample -impossible to hide That’s why DA exists.

Here’s the simple truth 👇 Rollups don’t need blockchains to compute. They need blockchains to publish data so anyone can verify it. This is Data Availability (DA): Ensuring rollup data is public, retrievable, and verifiable so anyone can prove the state is correct. No DA = no

🧵Data Availability (DA) - The Backbone of Modular Blockchains 📡 In last thread we learned files live off-chain on IPFS/Arweave. Now we go deeper: Where do rollups store their transaction data? -Not on Ethereum. -Not on IPFS. -Not on their own chain. They store it on DA

So how does a dApp actually use this? A typical Web3 app works like this :)) 1. User uploads file -> goes to IPFS or Arweave 2. The file returns a CID (content hash) 3. The smart contract stores only the CID 4. Apps fetch the file via IPFS gateway or decentralized nodes 5. Users

Bundlr: The Missing Speed Layer Uploading directly to Arweave is slow & expensive. Bundlr fixes this by batching uploads and letting you pay with any token. Today, >80% of Arweave uploads go through Bundlr. This is why NFT mints feel instant, Bundlr is doing the heavy lifting.

Filecoin: The Storage Marketplace 💾 Filecoin doesn’t guarantee permanence. Instead, it creates a market where storage providers rent out space. Think of it as: Airbnb for data storage. Great for: -Large datasets -App storage -Long-term but not permanent archives And because

Arweave: Permanent Storage for the Next 200 Years Arweave introduced a radical idea: Pay once, store forever. If IPFS is the library, Arweave is the archive. Data is stored permanently using an economic model called permaweb. Used for: -NFT metadata -Important documents

IPFS: The Backbone of Web3 Storage IPFS doesn’t store files forever, it organizes them in a decentralized way using content addressing. What does that mean? In Web2: - You request files by location (a server URL). In Web3: - You request files by content hash (CID). If someone

Here are the 3 pillars of Web3 file storage: 🪶 IPFS – distributed file system 📕 Arweave – permanent storage 💾 Filecoin – decentralized storage marketplace And recently: ⚡ Bundlr – fast, scalable uploads to Arweave Each solves a different part of the storage stack.