In the blockchain world, data is redefining the boundaries of “value.” Imagine a transaction: it originates from a Rollup, gets fragmented into data shards, flows through the network, stored and reassembled. No longer locked within expensive monolithic blocks, these data pieces are distributed across low-cost, highly available modular storage networks — this is ME Network’s data layer.

Data Availability: The Invisible Foundation of Blockchain

To understand the significance of modular storage, we must first grasp the core concept — Data Availability (DA).

Simply put, DA refers to whether block producers publish all transaction data completely to the network, enabling validators to independently download and verify it. If the data is fully downloadable, it’s “available”; otherwise, it’s “unavailable.”

This seemingly simple concept is the cornerstone of blockchain security. Consider this: if malicious block producers only publish block headers and final states while hiding transaction records — other nodes cannot verify the correctness of state transitions. It’s like a bank telling you “your balance has changed” without letting you see the transaction history.

The Core Dilemma: Security Requirements vs. Cost Constraints

To ensure security, every node should be able to independently verify all transactions, requiring data to be completely available. However, as networks expand, data volume grows exponentially — Ethereum’s historical data already exceeds 1TB, making it increasingly difficult for average users to run full nodes. More critically, data availability costs account for the vast majority of total costs for Layer 2 solutions like Rollups.

Under traditional architecture, this presents a dilemma — either sacrifice security or bear prohibitive costs.

ME Network has found a breakthrough through modular architecture: decoupling the DA layer from the main chain, allowing data storage and verification to be handled by specially optimized layers.

ME Network’s Innovative Solution

Our DA layer achieves the balance between security and cost through two core technologies.

Data Availability Sampling (DAS)

The traditional approach is like verifying a book’s integrity by flipping through every page. DAS changes the game — through scientific random sampling, light nodes only need to download minimal data to verify an entire block’s availability with mathematical certainty.

• Using Reed-Solomon erasure coding to encode block data, expanding it to twice its original size, ensuring complete recovery of original content even if partial data is lost
• Data is arranged in a two-dimensional matrix with separate encoding for each row and column — any data fragment loss can be recovered through other data in its row or column
• Light nodes only need to randomly download small data fragments, achieving extremely high verification confidence through multiple sampling rounds
  This means: minimal downloads can verify the entire block’s data availability — dramatically reducing verification costs.

Namespaced Merkle Trees (NMT)

While DAS solves the “verification cost” problem, NMT addresses the “data location” challenge. In traditional blockchains, all applications’ data is mixed together, like a library without a classification system — every reader must browse all shelves to find the book they need.

ME Network establishes a comprehensive classification system through NMT technology:

• Each transaction is tagged with a unique namespace ID
• When building the Merkle tree, data from the same namespace is intelligently aggregated
  Each application only needs to download its own namespace’s data and relevant cryptographic proofs
• The practical effect is revolutionary: DeFi applications don’t pay for NFT marketplace data, games don’t bear the storage costs of DEX transactions. Each application’s costs are completely decoupled from the entire network’s scale, truly achieving “pay-as-you-go.”

From Monolithic to Modular: Blockchain’s Professional Division of Labor

From a macro perspective, modularization represents a structural evolution in blockchain architecture. Just as human society’s transition from “self-sufficiency” to “professional specialization” brought about a leap in productivity, blockchain is also moving from “all-in-one monoliths” to a new era of “specialized collaboration.”

In this new architecture, ME Network’s DA layer plays a crucial role — we are the “cloud storage infrastructure” of the blockchain world.

Compared to traditional monolithic chains, ME Network adopts an innovative “off-chain verification + on-chain availability proof” model, transforming expensive on-chain data storage into a more flexible and efficient solution. This architecture brings triple advantages:

First, it significantly reduces the main chain’s burden. Data no longer needs to be fully stored by every node; the main chain only needs to maintain availability proofs, freeing up precious on-chain resources.

Second, it provides developers with a flexible environment. Applications can adjust data strategies according to their needs, no longer constrained by uniform high-cost standards, truly achieving “customization on demand.”

Finally, it maintains enterprise-grade security standards. The cost reduction doesn’t sacrifice reliability — through the dual guarantee of cryptographic proofs and statistical verification, we provide security levels equivalent to traditional full nodes while reducing costs to minimal levels.

This professional division of labor brings not just improvements in technical metrics, but a complete liberation of use cases. Other chains and applications can directly integrate ME Network’s services without building expensive storage systems, enjoying professional, reliable, and economical data guarantees.

Clearly, low-cost, highly available data storage is opening unprecedented imaginative spaces for blockchain. From fully on-chain social networks to decentralized content creation platforms, from transparent AI training to perpetually online gaming worlds — these innovations once limited by costs are now becoming possible.

Conclusion: Making Data an Affordable Productive Force

In the past, data was the most expensive resource on-chain. But in ME Network’s modular world, data is being redefined — it’s no longer a heavy burden, but fuel driving Web3 ecosystem development.

The balance of low cost, high availability, and verifiability makes modular chains an inevitable trend for future blockchain infrastructure. Through this technological innovation, ME Network enables every DApp and every Rollup chain to carry greater imagination with lighter costs and higher efficiency.

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About Meta Earth

Meta Earth (ME) is based on a modular, high-performance, infinitely scalable multi-dimensional fusion underlying value network — ME Network, which supports the high-concurrency big data processing needs of traditional industrial applications.

And through an encrypted DID (Decentralized Identifier) system — ME ID & ME Pass which can effectively protect user privacy data, and a co-construction & co-governance mechanism which can fully reflect personal sovereignty and equality for all, as well as an economic model which can guarantee UBI (Unconditional Basic Income) without any distinction, Meta Earth is fully dedicated to enhancing happiness for a better life and maintaining ecological balance to promote sustainability.

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