layer 2 solutions Archives - Coin Engineer

Robinhood Faces Regulatory Scrutiny Over SpaceX Token Plan

Yigit Taha OZTURK — Tue, 08 Jul 2025 12:01:29 +0000

A bold move in the crypto-finance intersection is attracting significant attention from European regulators. Robinhood’s attempt to introduce tokenized equities to EU markets has sparked both curiosity and controversy—especially as the line between real equity and derivatives becomes increasingly blurry.

Robinhood’s Stock Token Initiative Raises Questions

Launched on June 30, Robinhood offered European users blockchain-based stock tokens tied to SpaceX and OpenAI as part of a limited-time promotion. The reaction from OpenAI was swift, with the company warning that “any transfer of OpenAI equity requires our approval” and urging caution from investors.

The Bank of Lithuania reportedly requested detailed information from Robinhood to determine whether the tokens function as regulated securities or unapproved derivatives.

You Might Be Interested In: Elon Musk Talks About the Name of a New Memecoin!

CEO Vlad Tenev responded by emphasizing that the tokens are derivative products offering retail exposure—not actual equity.

Live Testing Continues on Arbitrum

Despite growing scrutiny, on-chain data shows that Robinhood has issued over 215 stock tokens on the Arbitrum Layer 2 network. One SpaceX token has been renamed “Demo 1,” signaling that the offering remains in a testing phase.

Looking forward, Robinhood aims to introduce perpetual futures trading and even launch its own Layer 2 blockchain built on Arbitrum, indicating a broader push into crypto-native infrastructure.

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What Is Fuel Network (FUEL)?

Yigit Taha OZTURK — Mon, 30 Jun 2025 18:00:26 +0000

With its modular architecture, developer-centric language, and exceptional transaction performance, Fuel Network is emerging as one of the most critical pillars of Web3 infrastructure. Thanks to its technical structure and strong investor base, Fuel Network offers a promising solution to the scalability problem within the Ethereum ecosystem.

Modular Architecture and Technical Infrastructure

Fuel Network is a high-performance, modular Layer-2 execution layer fully compatible with Ethereum. Its structure reduces on-chain congestion, enabling both lower transaction fees and higher throughput. Unlike traditional monolithic blockchains, it introduces an execution-first design. By separating consensus and data layers, it fully implements modular blockchain principles.

Here are the core components that distinguish Fuel Network from traditional Layer-2 solutions:

Modular Architecture: Execution, consensus, and data availability operate on separate layers, allowing each component to be independently optimized.
FuelVM: The project’s custom virtual machine, FuelVM, uses a register-based design to achieve faster and more efficient execution.
UTXO Model: Inspired by Bitcoin, this model enables parallel transaction execution while preventing double-spending.
Parallel Execution: Processes multiple transactions simultaneously with high security, which is crucial for high TPS.
Sway: A programming language derived from Rust, Sway is secure, readable, and developer-friendly. It also offers transpiler support for compatibility with Solidity-based projects.

Application Layer and Ecosystem

Fuel Ignition, the network’s first rollup-based implementation, offers the following performance metrics:

1-second block times
600+ TPS (with Ethereum data availability)
21,000+ TPS (with CPU-only execution)
Compatibility with EIP-4844
Over 60 active dApps

Highlighted projects within the ecosystem include:

Mira Exchange – AMM-based DEX
Swaylend – Lending protocol
Griffy – Prediction market
Thunder – NFT platform
Spark – Order book using predicates
Fuel Wallet – Official wallet
Fuel Bridge – Cross-chain bridge

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FuelProver supports a hybrid verification system integrating both Optimistic and Zero-Knowledge (ZK) proof mechanisms, allowing developers to choose their preferred execution verification layer.

Founding Team

The team behind Fuel Network includes influential figures from the Ethereum community:

John Adler: Known for his work on Optimistic Rollups and a pioneer of the modular blockchain concept.
Nick Dodson: A seasoned blockchain engineer and entrepreneur leading project governance.

FUEL Tokenomics

FUEL serves as the core utility token for transaction fees, network security, and staking incentives.

Total Supply: 10.12 billion
Public Sale Allocation: 470 million (4.64%)
Initial FDV (Fully Diluted Valuation): $202.49 million
Inflation Rate: 3% annually

Token distribution:

Buyers: 33.1%
Community: 20%
R&D and Ecosystem: 15.4%
Others: 16%

By the end of 2024, more than 200,000 users had received an airdrop equal to 10% of the total supply.

Funding Rounds and Financials

Fuel Network has raised a total of $90.9 million to date, with $9.4 million from public sales and $81.5 million from private and strategic rounds.

The strategic round was closed on September 6, 2022, raising $80 million at a $1 billion valuation. Leading investors included:

Blockchain Capital
Stratos Technologies
The Spartan Group
CoinFund
Maven 11 Capital
Bain Capital Crypto

In 2021, CoinFund, Fenbushi Capital, and Origin Capital participated in a seed round totaling $1.5 million.

Public fundraising events were held as follows:

IEO – Bitget (December 2024): Raised $5.5 million
ICO – Legion (December 2024): Raised $2.5 million
IDO – Impossible Finance (December 2024): Raised $1.4 million
Launchpool – Gate Launchpad (February 2025): Distributed 6.95 million FUEL tokens for free

Future Vision and Decentralization Plan

Fuel Network aims to transition into a fully decentralized sequencer system through phased upgrades:

Phase 0: 12 proposers, 1 builder
Phase 1: 100+ proposers, multiple builders
Phase 2: Up to 10,000 proposers for full scalability

This architecture is ideal for real-time DEXs, on-chain prediction markets, and high-performance blockchain games.

With its modular architecture, high-performance execution, and developer-friendly ecosystem, Fuel Network is one of the most promising solutions for scaling Ethereum. Backed by strong financials, active developer support, and innovative technologies, Fuel Network is poised to become a cornerstone in the Web3 landscape. FUEL is the foundational asset that powers and secures this next-generation network.

Official Links

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What is BSquared Network (B2)?

Yigit Taha OZTURK — Wed, 30 Apr 2025 07:35:54 +0000

Bitcoin has long been viewed merely as a store of value or digital gold. However, with the advent of next-generation Layer-2 solutions, this perception is shifting. One of the pioneers of this transformation is undoubtedly Bsquared Network.

Bsquared Network is the first zero-knowledge proof (zk-proof)-based validity rollup built on the Bitcoin network. Its goal is not only to enhance transaction speed, but also to ensure privacy, scalability, and low transaction costs. Especially with Taproot, using “commitment” and “challenge-response” mechanisms, transactions become more secure and private.

This structure is more than just a technical upgrade; it represents a turning point enabling Bitcoin to go beyond being merely a payment tool. Bsquared Network aims to bring smart contracts, DeFi, NFTs, and more into the Bitcoin ecosystem.

Ethereum Compatibility: EVM Comfort for Developers

In the crypto world, the majority of developers are accustomed to working with the Ethereum Virtual Machine (EVM). For this reason, Bsquared Network has been designed to be fully EVM-compatible. This means developers can easily port their existing DApps to the Bitcoin network or build new applications from scratch.

Moreover, it supports both Bitcoin and Ethereum-style addresses, significantly enhancing the user experience. This fusion enables a multi-chain world to seamlessly integrate with Bitcoin.

B² Buzz and B² Hive: Innovative Earning Models

When it comes to user incentives, Bsquared Network stands out. B² Buzz combines traditional staking and mining by introducing a virtual mining machine concept. Participants can deposit BTC, ETH, USDC, and other assets to collect parts of these machines and earn in-ecosystem rewards.

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B² Hive introduces a mechanism for staking Bitcoin. Users can stake BTC to contribute to network security and in return earn B2 token rewards. Additionally, through integration with the Babylon security protocol, a dual-layer security model is implemented. Staked BTC is used both in validation processes and in securing the broader network.

Tokenomics and Investor Backing

With a total supply of 210,000,000 B2, the Bsquared Network token is distributed as follows:

10% to investors
10% to team and advisors
20% for staking rewards (Hive)
24% to the ecosystem reserve
12% for public sale and listings
11% for Bitcoin expansion rewards
2% for initial liquidity

Major backers include well-known names like Animoca Brands, HashKey Capital, KuCoin Ventures, OKX Ventures, and The Spartan Group, among others. The IDO is scheduled to launch via Binance Wallet on April 30, 2025.

B2 Token Utility

The B2 token serves not just as a reward mechanism, but as a vital part of the ecosystem. Its current utilities include:

Paying transaction (gas) fees on B² Hub
Staking to contribute to network security
Mainnet incentives (TVL mining)
Liquidity rewards and discounted transaction fees
Participating in governance voting

Future utilities are planned to include sequencer staking, staking across additional rollup layers, and expanded governance functionalities.

Official Links

Whitepaper: BSquared Network Whitepaper
Discord: BSquared Network Discord
X (Twitter): BSquared Network X
Medium: BSquared Network Medium

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“Build a Better Bitcoin” Call from Famous Investor!

Yigit Taha OZTURK — Sun, 16 Mar 2025 14:00:51 +0000

Jason Calacanis, one of Uber‘s early investors, has sparked controversy within the crypto community with his recent comments about Bitcoin. Calacanis argued that Bitcoin will inevitably be replaced by a better version. However, Bitcoin advocates and industry leaders strongly opposed this view, emphasizing that layer-2 solutions can address Bitcoin’s functional limitations.

Calacanis: “Time to Build a New Bitcoin”

Speaking to his 981,600 followers on X on March 14, Jason Calacanis said:

“Bitcoin has been a great game, but a few major players have taken over the market. It’s time to reset the game and build a better Bitcoin.”

Calacanis had also been an early investor in Robinhood and Keza, two Bitcoin-focused startups. Nevertheless, he claimed that Bitcoin, like all technologies, will eventually give way to new alternatives.

A New Opportunity for Bitcoin Layer-2 Projects!

In response to Calacanis’ remarks, many founders and executives of Bitcoin-focused initiatives emphasized that nothing can replace Bitcoin. However, they also highlighted the growing significance of layer-2 protocols built on the Bitcoin network.

Brady Swenson, co-founder of Swan Bitcoin, commented:

“Winning protocols aren’t replaced by something else; they are built upon.”

You Might Be Interested In: Elon Musk Talks About the Name of a New Memecoin!

Meanwhile, Cory Klippsten argued that Bitcoin is not just a technology but a revolution.

Lightspark CEO David Marcus also chimed in, saying Bitcoin’s functional gaps can be addressed through layer-2 solutions, adding:

“Trying to build a better Bitcoin is a fool’s errand.”

Bitcoin Gets Harder to Change as It Grows!

Many experts pointed out that Bitcoin’s massive network effect makes it increasingly powerful. While Muneeb Ali, one of the founders of Stacks, predicted that two-thirds of current Bitcoin layer-2 projects will disappear within three years, most agreed that Bitcoin itself cannot be replaced.

Bitcoin advocate Wayne Vaughan stated:

“People who see Bitcoin as just an asset or an application think it can easily be replaced, but Bitcoin is actually a network.”

Strive Funds CEO Matt Cole was even more direct:

“There will not be a better Bitcoin.”

This isn’t the first time Jason Calacanis has caused a stir in the crypto world. Back in 2020, he claimed that almost every crypto project globally was run by either “unqualified idiots” or “scammers.”

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Vitalik Buterin’s New Scaling and Ethereum Vision

Tanju Akbıyık — Fri, 24 Jan 2025 13:30:33 +0000

Ethereum co-founder Vitalik Buterin emphasized in a blog post on January 23rd the need to expand layer 2 solutions, improve “blob” scaling, and strengthen ETH’s role as the ecosystem’s fundamental asset.

Strengthening Ether as the Ecosystem’s Core Value

Buterin noted the critical importance of positioning Ether as the primary asset of layer 1 and layer 2 Ethereum economies. He argued that layer 2 networks should support transaction fees with ETH and proposed increasing the number of “blobs” to provide more transaction capacity.

Layer-2 Solutions for Scaling

Layer 2 networks have significantly contributed to reducing transaction fees and increasing transaction capacity by operating on Ethereum’s main layer. However, Buterin stressed the need to accelerate the adoption of these solutions and increase interoperability between layer 2 networks.

He stated that Ethereum’s user experience should feel like a single unified ecosystem rather than multiple different blockchains. He also emphasized the need for ETH to continue gaining value in a layer 2-intensive world, highlighting the importance of standardized cross-chain messaging and faster deposit and withdrawal times.

Increasing Transaction Capacity with Blob Scaling

Buterin expressed that the Ethereum network should adopt a blob-focused scaling strategy. (Blobs are a tool that allows the network to process more transactions at lower costs without compromising decentralization or security)

Buterin indicated that forward-looking goals could reach levels like 128 blobs/second, potentially achieving a capacity of 100,000 transactions per second (TPS).

Leadership Change and Ethereum Foundation

Despite adopting an inclusive approach in Ethereum’s development process, Buterin noted that he remains the sole decision-maker in the Ethereum Foundation’s leadership. He stated that this situation would continue until an appropriate board is established with the planned innovations.

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The Future of Shiba: Exploring the Completed Hard Fork

Tanju Akbıyık — Fri, 03 May 2024 13:30:46 +0000

It has been reported that the hard fork of the Shibarium, the layer-2 solution for Shiba Inu, has been completed.

The next hard fork will supposedly bring in “blazing-fast” transactions and “predictable” gas prices.

A hard fork is an alterations to software upon which a blockchain network becomes divided into two new chains. The intended use of it is to bring about quality changes that cannot be compatible with the previous editions.

Last month, the team that is behind the project of the Shiba Inu network stated that a hard fork is needed so that “next-level capabilities” are achieved. The revolutionary upgrade was required to add more value and facilitate easier interaction with the Shibarium blockchain.

According to the Shiba Inu development team, they listen to the community and implement their suggestions with a hard fork. Most of the users of the prominent layer-2 solution were interested in improving it so that it would be more user- and performance-friendly.

According to the Shiba Inu Team, the newest update will keep the platform “cheap and available.”.

Throughout the hard fork deployment, the most significant issue was security. As one would have expected, the long-awaited update was expected to greatly fortify and make the system safe.

Considering the significance of the new hard fork in curing probable problems, the developers have asked for user opinion. The group states, “As we release these updates, your thoughts and participation will define the continuous development of Shibarium.”.

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What are Layer 2 Crypto Protocols?

admin — Sat, 15 Jul 2023 10:55:27 +0000

Layer 1 blockchains like Bitcoin and Ethereum are well-known for their scalability, security, and decentralization. They serve as the foundation for digital transactions and securely store data in a distributed ledger. However, as more people use these blockchains, transaction speeds can slow down, sometimes even slower than traditional payment methods like Visa. To deal with this issue, layer 2 solutions step in.

Layer 2 blockchains, also called scaling chains, play a vital role in improving the scalability and processing speed of layer 1 blockchains. They act as an additional layer that addresses the limitations of the basic blockchain, aiming to make the entire network more efficient. The relationship between layer 1 and layer 2 is a significant achievement.

Pow and Pos

The Ethereum network is an excellent example of a project built on a layer 1 blockchain. Businesses and applications on Ethereum benefit from its strong security measures and decentralized nature. However, when the network gets congested, users may experience slow transactions and high fees. To overcome this challenge, Ethereum transitioned from Proof-of-Work to Proof-of-Stake. This change enhances the networks efficiency and reduces transaction costs.

What makes layer 2 scaling solutions impressive is their ability to build on top of layer 1 without compromising the essential features that make it decentralized and secure. These solutions use innovative techniques like state channels, side chains, or off-chain computations to process transactions outside the main blockchain. By doing so, layer 2 solutions relieve the responsibility on the layer 1 blockchain, resulting in faster and more cost-effective transactions while maintaining decentralization and security.

To summarize, layer 2 blockchains are a vital part of the blockchain ecosystem. They address scalability issues in layer 1 blockchains by offering innovative solutions that improve transaction speeds and efficiency.

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