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Polygon spinoff launches testnet bridge to allow for low-cost layer 2s

Avail launched a bridge to transmit data availability attestations to Ethereum, potentially allowing for lower fees on some layer 2s.

Blockchain network Avail has launched a testnet data availability bridge to Ethereum, according to a July 7 announcement. Once testing is completed, the bridge will allow developers to easily create “validiums” or low-cost layer 2s that do not store full transaction data on Ethereum, the announcement stated.

Avail was originally created by Polygon Labs, but was spun off as an independent project in March. Polygon’s co-founder, Anurag Arjun, is also the founder of Avail.

Avail Block Explorer. Source: Avail.tools

Layer-2 rollup networks like Optimism, Arbitrum, Polygon zkEVM, and zkSync Era lower transaction fees by batching transactions into compressed “rollups” and periodically adding them to the base layer. However, because these networks must write all the transactions to the base layer, they often have higher transaction fees than layer-1 competitors.

To get around this problem, some networks have opted to write only the validation proofs of each transaction to the base layer, while storing the full transaction data off-chain. This produces a type of network called a “validium.” For example, StarkEx features a validium mode that stores data with a data availability committee (DAC) instead of on Ethereum. Polygon proof-of-stake may become a validium that stores its data on a proof-of-stake chain in 2024.

Related: Starknet’s Quantum Leap hits testnet with TPS reaching ‘triple figures’

According to the announcement, the new bridge allows developers to create custom validiums quickly and easily by storing their transaction data on the Avail network, eliminating the need to create their own DAC or proof-of-stake data availability network. When a user tries to withdraw cryptocurrency from layer 2 back to the base layer of Ethereum, the Avail bridge will transmit an attestation that the data is available on Avail, allowing the withdrawal to occur.

“Today’s launch of the Data Availability attestation bridge marks a major advancement in our mission to optimize blockchain scalability and efficiency,” said Arjun. “By enabling rollup constructions to run in validium, optimistic chains, and volition modes, we are not only reducing costs but also paving the way for a more inclusive and efficient layer-2 and layer-3 ecosystem.”

Arjun previously told Cointelegraph that data availability solutions would become essential to the Web3 space as zero-knowledge proof rollups are more widely used.

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Binance’s BNB Chain introduces layer-2 testnet powered by Optimism

The Binance-founded blockchain has introduced a new layer-2 chain opBNB, though some suggest there are other ways to scale the network.

Binance-founded layer-1 blockchain BNB Chain has introduced a new layer-2 chain that it hopes will address its “scalability challenge.”

On June 19, BNB Chain unveiled opBNB, which has launched as a testnet. The new layer-2 scaling solution is based on the Optimism OP Stack, which it says will add additional security and scalability to the Binance blockchain network.

The system is an Ethereum Virtual Machine (EVM) compatible layer-2 chain, which means it works with Ethereum-based smart contracts, networks and ERC-20 token standards.

Blockchains are often plagued by network congestion and high fees during times of increased network demand. BNB Chain currently claims around 2,000 transactions per second with transaction costs of around $0.10.

According to the announcement, opBNB can support over 4,000 transfer transactions per second at an average transaction cost lower than $0.005.

Furthermore, opBNB also allows for the optimization of data accessibility, the caching layer, and adjusting the submission process algorithm to allow simultaneous operations, it noted. This allows it to increase the gas limit to 100 million per block from the 30 million that Optimism allows.

In a statement, Binance called opBNB its “answer to the scalability challenge that has limited the mass adoption of blockchain technology.”

Optimism uses Optimistic Rollups to scale transactions by automatically assuming the transaction data, which is processed off the root chain, is valid until proven otherwise.

Additionally, the RPC (remote procedure call) service layer simplifies the integration process by offering a user-friendly interface, it noted.

This allows developers to “focus on building applications without worrying about the complexities of Layer 2 scaling,” it added.

Cinneamhain Ventures partner Adam Cochran was among some of those skeptical of the development, commenting that BNB Chain had scaling issues “because they centralized an Ethereum fork and turned up the gas limit to an unsafe level.”

He added that launching an Optimism fork “made no sense” since there were other options, such as joining Optimism as a “superchain,” or becoming a layer-2 directly on Ethereum, or even a layer-3 on Optimism or Arbitrum.

Related: Optimism successfully completes ‘Bedrock’ hard fork, reducing deposit times, layer-1 fees

According to DefiLlama, BNB Chain is the third largest blockchain, behind Ethereum and Tron, in terms of DeFi total value locked. It has a TVL of $3.38 billion, a 24-hour volume of $264 million, and around a million active daily users.

Magazine: Here’s how Ethereum’s ZK-rollups can become interoperable

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Arbitrum’s Daily Transaction Count Surpasses Ethereum for the First Time Ever

Arbitrum’s Daily Transaction Count Surpasses Ethereum for the First Time EverAccording to statistics recorded this week on Tuesday and Wednesday, the layer two scaling project Arbitrum’s transaction count has surpassed Ethereum’s. On Wednesday, Arbitrum processed 1,090,510 transactions, compared to Ethereum’s 1,080,839 transfer count. L2 Scaling Solution Arbitrum’s Daily Transfers Skyrocket Layer two (L2) scaling networks have become popular over the last two years as secondary […]

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Combined Transactions on Arbitrum and Optimism L2 Chains Outpace Ethereum’s Daily Transfer Count 

Combined Transactions on Arbitrum and Optimism L2 Chains Outpace Ethereum’s Daily Transfer Count Since The Merge, Ethereum’s onchain fees have been considerably lower. However, combined transaction volume on layer two (L2) chains Arbitrum and Optimism has outpaced Ethereum’s onchain transaction output. On Saturday, Jan. 14, 2023, Ethereum processed 1.10 million onchain transactions, while combined transactions on Arbitrum and Optimism reached 1.32 million for the same day. Rise of […]

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Ethereum needs to defend $1,180 to sustain this 50-day ascending pattern

ETH price bulls struggle as futures remain trading below its fair value, signaling excessive demand for shorts.

Ether (ETH) has been ranging near $1,200 since Dec. 17, but an ascending trend has been quietly gaining strength after 50 consecutive days.

The pattern points to $1,330 or higher by March 2023, making it essential for bulls to defend the current $1,180 support.

Ether/USD 1-day candle chart. Source: TradingView

The anxiously awaited migration to a Proof of Stake in September 2022 paved the way for additional layer-2 integration and lower transaction costs overall. Layer-2 technologies such as Optimistic Rollups have the potential to improve Ethereum scalability by 100x and provide off-chain network storage.

Developers anticipate that the network upgrades scheduled for 2023 introducing large portable data bundles can boost the capacity of rollups by up to 100x. Moreover, in December 2021, Vitalik Buterin shared that the end game was for Ethereum to act as a base layer, with users "storing their assets in a ZK-rollup (zero knowledge) running a full Ethereum Virtual Machine."

An unexpected move negatively affecting the competing smart chain platform Solana (SOL) has likely helped to fuel Ethereum investors' expectations.

Related: Solana joins ranks of FTT, LUNA with SOL price down 97% from peak — Is a rebound possible?

Two noticeable non-fungible token projects announced on Dec. 25 an opt-in migration to Ethereum and Polygon chains, namely eGods and y00ts. The transition will also bridge the DUST token — used to buy, sell and mint NFTs on the DeGods ecosystem — via Ethereum and Polygon.

Still, investors believe that Ether could revisit sub-$1,000 levels as the U.S. Federal Reserve continues to push interest rates higher and drain market liquidity. For example, trader and investor Crypto Tony expects the next couple of months to be extremely bearish to ETH:

Let's look at Ether derivatives data to understand if the bearish macroeconomic scenario has impacted investors' sentiment.

Excessive demand for bearish bets using ETH futures

Retail traders usually avoid quarterly futures due to their price difference from spot markets. Meanwhile, professional traders prefer these instruments because they prevent the fluctuation of funding rates in a perpetual futures contract.

The two-month futures annualized premium should trade between +4% to +8% in healthy markets to cover costs and associated risks. When the futures trade at a discount versus regular spot markets, it shows a lack of confidence from leverage buyers, which is a bearish indicator.

Ether 2-month futures annualized premium. Source: Laevitas.ch

The chart above shows that derivatives traders continue to demand more leverage for short (bear) positions as the Ether futures premium remains negative. Yet, the absence of leverage buyers' appetite does not necessarily mean that a price drop is guaranteed.

For this reason, traders should analyze Ether's options markets to understand whether investors are pricing higher odds of surprise adverse price movements.

Ethereum ptions traders remain risk-averse

The 25% delta skew is a telling sign when market makers and arbitrage desks are overcharging for upside or downside protection.

In bear markets, options investors give higher odds for a price dump, causing the skew indicator to rise above 10%. On the other hand, bullish markets tend to drive the skew indicator below -10%, meaning the bearish put options are discounted.

Ether 60-day options 25% delta skew: Source: Laevitas.ch

The delta skew peaked on Dec. 24, signaling moderate fear as the protective put options traded at a 22% premium. However, the movement gradually faded to the current 17% level, indicating options traders remain uncomfortable with downside risks.

The 60-day delta skew confirms that whales and market makers are not confident that the $1,180 support will hold.

In a nutshell, both options and futures markets suggest that investors are prepared for sub-$1,000 prices. As long as the U.S. Federal Reserve maintains its contractive economic policies, bears will likely successfully suppress future Ethereum price rallies.

The views, thoughts and opinions expressed here are the authors’ alone and do not necessarily reflect or represent the views and opinions of Cointelegraph.

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Optimism Raises $150 Million in Series B Funding Round Led by Paradigm and A16z

Optimism Raises 0 Million in Series B Funding Round Led by Paradigm and A16zOptimism, an L2 (Layer 2) rollup solution for Ethereum, has raised $150 million in its Series B funding round coming from big companies in the venture capital (VC) scene. The funding round was led by A16z and Paradigm, with the former also having invested during the previous funding round. The scaling solution reached a valuation […]

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Arbitrum Network Stalled Due to Sequencer Downtime

Arbitrum Network Stalled Due to Sequencer DowntimeThe Arbitrum network, an Ethereum L2 (Layer 2) rollup, experienced some difficulties that caused a complete stop in the production of blocks and the confirmation of transactions. According to reports from the Arbitrum team, this incident had to do with downtime regarding its sequencer, a special node that manages the order of transactions, leaving the […]

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Coinbase exec says major Ethereum scaling improvements coming soon

The Chief Product Officer at Coinbase foresees that there will be more advances in layer 1 to layer 2 bridges and rollup technologies.

Coinbase Chief Product Officer Surojit Chatterjee is the latest to publish his predictions for the crypto industry in 2022 and he foresees major advances in the scaling of Ethereum.

Industry leaders, analysts, and investors are sharing their 2022 predictions for the crypto ecosystem, and Coinbase’s Surojit Chatterjee is confident that Ethereum will be at the forefront of Web3 and the crypto-economy as it scales.

The CPO shared his predictions in a company blog post on Jan. 4 in which he stated that Ethereum scalability will improve but alternative layer 1 networks will also see traction.

“I am optimistic about improvements in Eth scalability with the emergence of Eth2 and many L2 rollups.”

He added that newer layer 1 networks focused on gaming and social media will also emerge. Chatterjee predicts that scalability will be vastly improved by advances in layer 1 to layer 2 bridges, adding that the industry will “desperately seek improvements in speed and usability of cross-L1 and L1-L2 bridges.”

These bridges enable tokens to be moved from a layer 1 network such as Ethereum to a layer 2 network such as Arbitrum and vice versa.

Referring to scaling technologies, the CPO specifically mentioned ZK-rollups stating that they will “attract both investor and user attention.” Zero-Knowledge scaling “rolls up” transactions data in batches for more efficient processing on Ethereum's layer 1.

Firms such as Matter Labs have advanced in leaps and bounds in 2021 with the development and deployment of their rollup-based zkSync layer 2 platform.

The layer 2 ecosystem has undergone massive expansion in 2021 with a surge in adoption for all major platforms. According to L2beat, which tracks the L2 ecosystem, the total value locked surged by nearly 11,000% over the past year from around $50 million in January 2021 to $5.5 billion by the end of the year.

Related: Even with Ethereum 2.0 underway, L2 scaling is still key to DeFi’s future

Chatterjee predicted that there will be more privacy-focused applications emerging but this could attract more regulatory attention as more KYC/AML (know your customer/anti-money laundering) restrictions are enforced.

“We’ll see new privacy-centric use cases emerge, including privacy-safe applications, and gaming models that have privacy built into the core.”

Other predictions he made include more regulation industry-wide, larger institutional participation in DeFi, the emergence of more DeFi insurance, greater brand involvement in Metaverse and NFTs, and Web2 companies scrambling to get into Web3.

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Consensys Launches Rollups Scaling Solution With Mastercard’s Support

Consensys Launches Rollups Scaling Solution With Mastercard’s SupportConsensys, an Ethereum software company, announced yesterday the launch of a new scaling solution for Ethereum, called “Consensys Rollups.” The company enlisted Mastercard programmers to design the solution, which aims to allow the network to reach a throughput of 10,000 TPS (transactions per second), according to a PR statement. The solution can be implemented on […]

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