Working with EVM networks often reveals the limits of standard RPC calls. When a transaction fails without a clear reason or a DeFi protocol triggers a cascade of internal calls, developers need more visibility than ordinary logs can provide. This is where the Trace API and Debug API become essential. They expose what actually happens inside a transaction and help analyze how the EVM executes code.

NOWNodes, one of the well-known RPC providers in the ecosystem, supports both Trace API and Debug API across EVM networks and maintains a simple pricing model in which each request — trace included — costs the same. For developers dealing with heavy analytics or audit workloads, this difference matters more than it may seem at first glance.

Understanding the Trace API

The Trace API reconstructs the internal execution flow of a transaction. It shows nested calls, delegatecalls, value transfers, and other operations that never appear in regular RPC responses. For developers analyzing DeFi mechanisms, researching historical execution patterns, or reviewing complex transactions, this kind of visibility can be indispensable.

Trace API methods like trace_transaction, trace_call, or trace_filter allow developers to see how a transaction unfolded internally and how its logic interacted with other contracts. This makes it possible to understand behavior that would otherwise stay hidden.

What the Debug API Adds

Debug API goes deeper by exposing the state of the EVM during execution. Instead of showing only the structure of calls, it reveals opcodes, stack changes, memory transitions, and storage diffs. This is the level of detail needed when a revert must be explained precisely or when the logic inside a smart contract behaves in surprising ways.

Methods such as debug_traceTransaction or debug_traceCall help developers pinpoint where execution deviated from expectations, confirm intermediate values, or study the exact chain of computations that led to an outcome.

When Each API Makes Sense

Both APIs serve different purposes. Trace API is more suitable when the goal is to understand the overall flow of execution and how contracts interacted with each other. Debug API is the right choice when there is a need to observe the internal state of the EVM at each step and investigate the reason behind a specific behavior.

Many developers end up using both. Trace provides the structure; Debug provides the explanation. Together, they create a complete picture of what a transaction actually did.

Getting Started

Trace and debug requests follow standard JSON-RPC specification and can be used with any HTTP client. Developers only need their RPC endpoint and an access key. The methods behave predictably and do not modify blockchain state, which makes them safe for simulations, analysis, and historical research.

Final Thoughts

Trace API and Debug API are essential instruments for understanding the real behavior of smart contracts on EVM chains. One reveals the structure of execution; the other shows the logic inside it. They are widely used in audits, DeFi analysis, infrastructure diagnostics, and research.

When their usage becomes affordable and accessible — as in the case of NOWNodes — developers gain the freedom to inspect execution in detail, run simulations, and build more transparent on-chain systems without facing disproportionate technical or financial constraints.

Privacy is having a moment again. After months of muted activity, Zcash (ZEC) has come roaring back — up more than 190% in just one month — and now, its core developers at Electric Coin Co. (ECC) have unveiled an ambitious roadmap for Q4 2025.

The timing couldn’t be better. As conversations around data ownership and financial transparency evolve, Zcash is once again reminding the industry why privacy still matters — and how it can be done right.

What’s Coming Next for Zcash

The new roadmap centers around Zashi, ECC’s official wallet for Zcash, and introduces several features aimed at improving both privacy and usability.

Among the highlights:

• One-time addresses through Near Intents, enabling secure and private exchanges of ZEC
• Automatic address generation after receiving funds — a major boost for privacy-by-default
• Device resynchronization support for Keystone hardware wallets, improving reliability for cold storage users
• Multisig wallets, which ECC plans to use for managing the Zcash Developer Fund

And there’s more on the way — the NU6.1 mainnet upgrade, set for November, will bring additional network improvements and prepare Zcash for future scalability work.

ECC’s statement captured the spirit of the quarter clearly:

“We’re focused on reducing technical debt, improving privacy and user experience for Zashi, and ensuring seamless management of developer funds.”

The Privacy Coin Resurgence

This roadmap arrives at a time when the privacy coin sector is seeing renewed momentum. According to CoinGecko, the total market cap for private cryptocurrencies has reached $23.6 billion, with daily volumes exceeding $3.3 billion.

Zcash now represents nearly 30% of that trading activity — and recently surpassed Monero (XMR) in total market capitalization, with $6.4 billion versus $6.2 billion.

At the end of September, ZEC traded near $70. Today, it sits around $392. In late October, Zcash also recorded a record 4.9 million shielded transactions, highlighting just how active its privacy features have become.

In short: the market isn’t just watching — it’s participating.

How NOWNodes Fits In

At NOWNodes, we see ECC’s roadmap as more than a technical update — it’s a signal of maturity. By integrating one-time addresses, multisig capabilities, and hardware wallet improvements, Zcash is evolving from a niche privacy project into a secure, developer-friendly platform for real-world financial use.

The Bigger Picture

Zcash’s new roadmap shows that privacy isn’t just a niche value anymore — it’s becoming an essential layer of Web3 infrastructure. By improving usability, introducing stronger governance, and reinforcing its privacy foundation, Zcash is positioning itself as the backbone of a new era of digital autonomy.

That makes Zcash the most valuable privacy-focused cryptocurrency today — a title Monero has held for years. The timing couldn’t be more striking: the rally came just days after BitMEX co-founder Arthur Hayes publicly predicted a $10,000 target for ZEC.

But beyond the price action, there’s a deeper story. Both Zcash and Monero represent two very different philosophies of on-chain privacy. As a blockchain infrastructure provider at NOWNodes, we thought this was the perfect time to look under the hood and compare their core technologies.

Two Paths to Privacy: zk-SNARKs vs. Ring Signatures

Both Zcash and Monero were designed to make transactions untraceable, but they achieve this through very different cryptographic methods.

Zcash’s zk-SNARKs are a powerful cryptographic tool that allows one party to prove the validity of a transaction without revealing any of its details. What makes Zcash unique is that it lets users choose between full privacy (shielded transactions) or transparency (similar to Bitcoin), offering a balance between anonymity and compliance.

Monero, on the other hand, takes a maximalist approach to privacy. Every transaction is private by default, using ring signatures to mix users’ transaction data and stealth addresses to mask recipients. While this ensures total anonymity, it also makes Monero less compatible with regulated exchanges and analytics platforms.

Why Zcash Is Winning the Momentum Battle

From a network perspective, Zcash’s hybrid model seems to be paying off. Over the past week, on-chain data shows a 63% increase in active ZEC holders, while institutional interest is growing thanks to its transparency options and zk-proof efficiency.

Even though some whales have been taking profits, the overall sentiment remains bullish. ZEC has effectively decoupled from the broader crypto market, showing strength despite macro uncertainty.

At NOWNodes, we’re seeing an increasing number of developers integrating Zcash nodes and APIs into privacy-oriented projects, wallets, and cross-chain infrastructure. The ability to build with both privacy and compliance in mind makes ZEC a flexible choice for real-world use cases.

The Bottom Line

The privacy coin market is evolving — and Zcash’s resurgence signals a shift in how users and institutions view on-chain confidentiality. While Monero remains the gold standard for full anonymity, Zcash’s zk-SNARK architecture offers a more adaptable, scalable, and regulation-friendly model for the next phase of Web3.

As privacy returns to the center of the crypto narrative, one thing is clear: Zcash and Monero are no longer just niche experiments — they’re setting the tone for the future of digital sovereignty.

Ethereum (ETH), the world’s second-largest cryptocurrency by market capitalization, continues to attract investor attention. On October 7, ETH briefly crossed the $4,800 mark, coming close to its all-time high (ATH). Analysts believe the asset may be preparing for another major upward move.

Market Indicators Turn Positive

According to Michael van de Poppe, founder of MN Fund, Ethereum’s technical structure looks increasingly favorable.

“The ETH/BTC pair has reached its bottom at the 0.0256 support level and is now ready for a new stage of growth,”
 — van de Poppe noted.

He also pointed out that gold, which recently set a record above $4,000 per ounce, may soon face a correction. Historically, such shifts in traditional markets tend to increase appetite for risk assets like cryptocurrencies.

Analysts Anticipate a New High

Market analyst Matt Hughes commented that Ethereum appears to be consolidating above the $4,350 support zone.

“As long as this level holds, a move to new highs is only a matter of time. The next key target is around $5,200,”
 — Hughes wrote.

Meanwhile, trader Poseidon projected a potential cycle peak near $8,500.

At the time of writing, Ethereum trades around $4,500, having declined about 4% in the past 24 hours — a pullback some view as part of a broader accumulation phase.

Correlation With Traditional Markets

Ethereum’s price performance has shown a strong correlation with the Russell 2000 index, which tracks small-cap U.S. stocks. Analysts from Milk Road believe this pattern reflects both markets’ sensitivity to monetary policy changes.

“The relationship looks almost synchronized. Both the Russell 2000 and Ethereum tend to react in similar ways to shifts in interest rates,”
 — they noted.

With the probability of a Federal Reserve rate cut in October estimated at 94.6%, many expect renewed optimism across risk markets.

Technical charts also display a “Cup and Handle” pattern — a well-known bullish continuation setup that often precedes significant upward moves.

Broader Outlook: Could $10,000 Be Next?

Research from XWIN Research highlights that the recovering M2 money supply may serve as a key macro driver. If liquidity continues to expand, analysts say Ethereum could climb toward $10,000 over the coming months.

Preparing for What Comes Next

The combination of technical strength, macroeconomic support, and renewed investor confidence suggests Ethereum could be on the verge of another defining moment. Whether the next target is $5,200, $8,500, or higher, the momentum behind Ethereum’s ecosystem continues to grow.

As the network moves toward potential new highs, projects and developers are increasingly focusing on scalability and reliability. Maintaining efficient infrastructure and robust node access has become essential for anyone building within the Ethereum ecosystem.

Staying ready for the next phase of growth may be just as important as anticipating it.

Bitcoin Core, the backbone software of the Bitcoin network, is gearing up for a major update: version 30, expected this October. On the surface, it might look like just another software release — but beneath the code, a long-standing debate is reigniting: What is Bitcoin really for?

The trigger? v30 removes the 80-byte limit on OP_RETURN, a field in Bitcoin transactions that allows users to embed arbitrary data directly into the blockchain. That change may seem minor, but it touches on deep questions about Bitcoin’s identity, neutrality, and purpose.

OP_RETURN: Bytes or Principles?

For many in the Bitcoin community, OP_RETURN isn’t just a technical field — it’s a battleground.

Critics argue that increasing the size of OP_RETURN opens the door to spam and non-financial use. They worry that if Bitcoin becomes a general-purpose data platform, transactions could crowd out payments, and nodes could be burdened with unnecessary data. Bitcoin, they insist, was designed as peer-to-peer money — not a decentralized storage system.

This philosophy is embodied in Bitcoin Knots, an alternative client maintained by Luke Dashjr. Knots enforces stricter rules by default, blocking most non-financial data. Its adoption has surged, from just 400 nodes in early 2025 to over 4,700 nodes today, signaling that a significant portion of the community values a “money-first” approach.

On the other side, Core developers defend the change as neutral and pragmatic. Gloria Zhao, a Bitcoin Core maintainer, explains that the goal isn’t to promote data storage, but to allow the network and fee market to determine blockspace usage. OP_RETURN is prunable, she notes, making it a less harmful alternative than methods that bloat the UTXO set.

Politics, Corporate Capture, and Fee Markets

Beneath the technical debate lies a political one. Some critics suggest that Bitcoin Core may be aligning with projects like layer-2 rollups, which benefit from larger OP_RETURN transactions. Others worry about a form of “corporate capture” — the idea that Bitcoin’s development could be steered by outside interests rather than the community.

Core developers reject these claims, emphasizing transparency. Decisions are made publicly on GitHub, mailing lists, and chat channels. Zhao stresses:

“If a small, socially engineerable ‘inner circle’ truly made software decisions for the network, Bitcoin would be fragile. Open participation is what makes it robust.”

For Core, v30 is about letting the fee market decide, not imposing social preferences. Neutral rules, they argue, are better for decentralization and the network’s long-term health.

Sensitive Questions About Content

A more controversial concern: what if larger OP_RETURNs allow illicit content, including child sexual abuse material (CSAM), to be embedded in Bitcoin?

Critics point to this risk as a reason to keep the cap. However, proponents like Bitcoin educator Jimmy Song argue that embedded data is not readily accessible. Running Bitcoin Core does not make you complicit in whatever data exists in blocks — the software simply verifies that transactions follow the rules.

What This Means for Bitcoin

The OP_RETURN debate is more than bytes and scripts — it’s a reflection of Bitcoin’s ongoing struggle to define its identity:

• Money-first camp: Bitcoin should be peer-to-peer money above all. No NFTs, no inscriptions, no arbitrary data.
• Neutrality camp: Bitcoin should maintain transparent rules, letting the network and fee market decide how blockspace is used.

As Adam Back of Blockstream put it, decentralization is more important than incomplete spam control.

Looking Ahead

When v30 is released, every miner, node operator, and business will face a choice: upgrade to Core or stick with stricter implementations like Knots. That decision will shape not only OP_RETURN’s future, but also how Bitcoin defines its neutrality, independence, and purpose.

For NOWNodes, these debates aren’t just theoretical. They affect the very infrastructure we rely on to provide seamless Bitcoin services to our partners and users. And they’re a reminder that Bitcoin isn’t just software — it’s a living community, constantly negotiating the balance between money, technology, and trust.

From time to time, a blockchain upgrade comes along that’s more than a technical adjustment — it’s a statement about the future of the network. Rootstock Upgrade 8.0.0 is one of those rare milestones.

Why This Upgrade Matters

Unlike minor patches, Upgrade 8.0.0 changes the consensus rules of Rootstock. That means staying on older software versions simply isn’t an option: nodes that don’t upgrade will fall out of sync with the chain.

The rollout has already happened:

• Mainnet: Block 8,052,200
• Testnet: Block 6,835,700

This upgrade signals Rootstock’s intent to strengthen its infrastructure, cut costs for users, and make life easier for developers building on Bitcoin.

Key Advancements in Upgrade 8.0.0

A Stronger Peg to Bitcoin

The Bitcoin–RSK peg is the backbone of Rootstock. To reinforce it, the upgrade expands the PowPeg signatory set to 20 participants. More signatories translate to higher decentralization, stronger security guarantees, and fewer risks of custodial bottlenecks.

At the same time, peg-out transactions have become cheaper, making BTC withdrawals more efficient for businesses and individuals.

Scaling Cryptography

For developers, one of the most exciting additions is a set of new precompiled contracts for Secp256k1 curve operations (point addition and scalar multiplication).

This upgrade reduces the computational cost of cryptographic math, enabling:

• More affordable zk-proof implementations
• Greater flexibility in DeFi design
• A smoother path for developers experimenting with advanced security models

RSKIPs Driving the Change

The upgrade brings together several important proposals:

• RSKIP-305: Peg-out efficiency improvements using SegWit
• RSKIP-516: Precompiled contracts for Secp256k1 math
• RSKIP-518: A formal definition of Rootstock’s network upgrade process

Each of these proposals solves concrete challenges while laying the groundwork for the next wave of applications.

NOWNodes: Supporting the Transition Seamlessly

At NOWNodes, we made sure our Rootstock infrastructure was upgraded the moment the new rules went live. Our partners and developers experienced zero downtime and zero uncertainty.

To us, this upgrade is more than a technical milestone. It’s proof of Rootstock’s dedication to building a resilient and innovative ecosystem — and we’re proud to provide the infrastructure that makes it possible.

The crypto market is buzzing again. For the first time since late 2024, the Altcoin Season Index has surged into levels that suggest altcoins are outperforming Bitcoin across the board. More than three-quarters of the top 100 coins have been beating the original cryptocurrency, and the market capitalization of the sector has crossed $1.8 trillion — just a few steps away from a new record.

Ethereum has been at the center of this movement. Following its Pectra upgrade, ETH has grown by more than 140% this year and briefly set a fresh all-time high above $4,900 in August. Analysts highlight three forces behind its momentum: reduced circulating supply, growing institutional participation through ETFs, and a regulatory environment that has become more favorable.

A Market Turning Point

Commentators across the industry are noting a shift in sentiment. Some describe the past months as a series of “mini altseasons,” now giving way to a more sustained rally. Others point out that traders are once again embracing risk, a dynamic that often accompanies a broad market expansion beyond Bitcoin.

While no one can predict how long this phase will last — macroeconomic conditions and regulatory decisions remain critical variables — the sense of renewed optimism is hard to miss. If history is any guide, periods like this tend to attract waves of new participants and spur innovation across the ecosystem.

The Infrastructure Angle

Price charts capture the headlines, but there’s a quieter story unfolding beneath the surface. Every altseason places immense strain on the systems that keep exchanges and decentralized applications running. Centralized venues must handle surging volumes; decentralized platforms need uninterrupted access to blockchain data; and developers are challenged to deliver seamless user experiences under heavier traffic than ever before.

In past cycles, bottlenecks in infrastructure have been a recurring theme. Whether it was congested networks, slow transaction times, or outages on trading platforms, the moments of greatest excitement often exposed the industry’s weakest points. This cycle could be different — if the foundations prove strong enough. This is why the trusted infrastucture providers like NOWNodes is essential.

Looking Ahead

Altseason is more than a price trend. It’s a stress test of the entire crypto ecosystem. The projects and platforms that succeed in the coming months are likely to be those that combine compelling products with resilient, scalable infrastructure.

As the market pushes toward new highs, the spotlight will remain on tokens and charts. But the real story may be the systems working behind the scenes — ensuring that this time, the industry is ready for the growth it has been waiting for.

The crypto world has grown into a battlefield of innovation, and at the very center of it are two undisputed leaders: Bitcoin and Ethereum. Both are decentralized blockchains, both rely on cryptography for security, and both have reshaped how we think about money and technology. But once you look under the hood, the technical differences become clear — and those differences define their place in the ecosystem.

Bitcoin: The Digital Gold Standard

Bitcoin was designed with one clear mission: to become a decentralized, censorship-resistant store of value. Its technology reflects this focus.

• It uses the UTXO model, where every transaction consumes previous outputs and creates new ones, ensuring immutability and transparency.
• Its consensus mechanism is Proof-of-Work, the most battle-tested method of securing a blockchain, relying on raw computational power.
• Throughput is limited to around seven transactions per second, which means Bitcoin prioritizes security and decentralization over speed.
• The supply is capped at 21 million coins, embedding scarcity directly into its code.

Bitcoin’s architecture is simple and extremely resilient. It isn’t designed to be flexible; it’s designed to be unbreakable.

Ethereum: The World Computer

Ethereum took a different approach, aiming to be not just money but a platform for an entire decentralized economy. Its technical foundations reflect this ambition.

• It uses an account-based model, which makes running smart contracts and managing balances more efficient compared to Bitcoin’s UTXO approach.
• The Ethereum Virtual Machine (EVM) is a Turing-complete environment that allows developers to build decentralized applications, DeFi protocols, NFTs, and more.
• Ethereum has transitioned from Proof-of-Work to Proof-of-Stake, cutting energy consumption dramatically and opening new roles for validators.
• To scale beyond the base layer, Ethereum embraces rollups, sidechains, and sharding solutions.

Ethereum is less about scarcity and more about flexibility. It’s the engine that powers Web3 innovation.

Two Different Purposes

From a technical point of view, this isn’t really about which blockchain is “better.” Instead, it’s about different design philosophies. Bitcoin is optimized for security, immutability, and scarcity, while Ethereum is optimized for programmability, adaptability, and growth. Together, they form the twin pillars of the blockchain ecosystem: Bitcoin as digital gold, and Ethereum as the global decentralized computer.

In May 2025, Solana introduced Alpenglow, a radical rethinking of its consensus architecture designed by Anza, a spin-off from Solana Labs. Unlike previous incremental optimizations, Alpenglow is a full redesign that cuts block finality from around 12 seconds to just 100–150 milliseconds. This makes Solana one of the first public blockchains capable of achieving Web2-level responsiveness while preserving decentralization.

The Core of Alpenglow

So, what is Alpenglow Solana? At its heart, this upgrade replaces Solana’s earlier consensus mechanisms — Proof of History (PoH) and Tower BFT — with two new innovations:

• Votor — a system for off-chain validator voting that eliminates on-chain vote transactions, reduces ledger size, and speeds up consensus.
• Rotor — a redesigned data propagation layer that accelerates block broadcasting and improves reliability with erasure coding.

Together, they form a leaner and faster consensus protocol, tailored for real-time applications.

Votor: Off-Chain Voting for Sub-Second Finality

Votor introduces a system where validators generate vote certificates using BLS signatures and exchange them off-chain. This approach removes the need for on-chain vote transactions, cutting both costs and operational overhead.

With 80% stake participation, blocks finalize in about 100 milliseconds. Even with lower participation levels, consensus is reached in under 250 milliseconds, ensuring both speed and safety. By removing epochs and tower lockouts, Votor simplifies validator responsibilities and eliminates penalties for missed slots.

Rotor: Faster Data Propagation

Rotor reimagines how Solana nodes share block data. Instead of the Turbine tree structure, it uses a one-hop broadcast model that reduces latency and improves consistency across the network.

Key elements include:

• Erasure coding, allowing nodes to reconstruct missing data.
• Deterministic relay assignments, ensuring predictable and efficient dissemination.

The result is faster, more reliable block propagation and improved performance at scale.

Why Alpenglow Matters

The Solana Alpenglow upgrade delivers several major benefits for the ecosystem:

• Developers gain a blockchain with near-instant finality, enabling new categories of decentralized applications such as real-time trading, gaming, and instant payments.
• Validators benefit from simplified operations and reduced costs, making it easier to participate in the network.
• Enterprises see infrastructure that approaches the standards of traditional financial systems in terms of latency and reliability.

Risks and Considerations

Despite its potential, Alpenglow introduces new challenges. Off-chain voting must be stress-tested against spam and denial-of-service attacks. Stake-based relay assignments could favor large validators, potentially impacting decentralization. And the decision to fully replace PoH is bold, carrying risks of unforeseen instability.

These issues will be closely examined during the public testnet phase, expected in late 2025, before the projected mainnet launch in early 2026.

Conclusion

The Solana Alpenglow upgrade represents a milestone in blockchain evolution. By combining sub-second finality with a simpler, more efficient consensus design, Solana takes a major step toward bridging the gap between decentralized systems and Web2 infrastructure.

If successful, Alpenglow could redefine expectations for what public blockchains can achieve — unlocking real-time applications, reducing validator barriers, and paving the way for institutional-scale adoption.

On August 21, 2025, a new controversy sparked across the Monero ecosystem. The project Qubic publicly claimed it had managed to control the majority of Monero’s hashrate. While the technical details of this claim are still being debated, the implications are clear: if true, Monero could face the classic threat of a 51% attack.

For a network that has long been the champion of financial privacy, this moment feels pivotal.

Why the 51% Attack Matters

A 51% attack occurs when a single entity controls more than half of a network’s mining power, giving them the ability to reverse transactions or reorganize the blockchain. Monero has worked tirelessly to stay resilient against such risks, regularly adjusting its PoW algorithm to resist ASIC dominance and to preserve decentralization.

But Qubic’s move highlights an uncomfortable truth: sometimes, attacks don’t rely on hardware. Instead, they exploit the economic vulnerabilities of consensus models. As Joel Valenzuela from the Dash DAO put it:

“Any ASIC-resistant network is under threat. What Qubic is running is essentially an experiment in exploiting the economic weak spots of blockchain security.”

The Community’s Response: Three Proposals on the Table

Rather than panic, the Monero community responded with innovation. Several ideas are now under consideration to harden the network’s defenses:

1. Hardware Localization
   By geographically distributing mining resources, Monero could make it far harder for any one cluster of machines to control the majority of hashrate.
2. Merged Mining
   Allowing Monero to be mined alongside other cryptocurrencies would force attackers to control multiple chains at once. This approach could strengthen security while making mining more energy-efficient.
3. ChainLocks (Inspired by Dash)
   ChainLocks introduce an additional layer of protection: randomly selected masternodes confirm the first valid block and lock it in. This prevents reorganizations, even if an attacker has superior hashpower. For Monero, adapting this concept could mean combining PoW security with cryptographic unpredictability.

As the only provider of shared Monero nodes, we at NOWNodes see these challenges from a unique angle. Nodes are the foundation of the ecosystem — they process transactions, support developers, and maintain the integrity of the chain.

When the network faces a threat, it’s not just an abstract issue. It directly impacts builders, users, and infrastructure providers like us. That’s why we believe the current debate isn’t just about avoiding attacks — it’s about future-proofing Monero.

A Defining Moment for Monero

Monero has always evolved under pressure. From resisting ASICs to defending user privacy against surveillance, the project has consistently proven that adaptability is its greatest strength.

This latest challenge may feel existential, but it’s also an opportunity. By experimenting with new consensus enhancements — whether through merged mining, localization, or hybrid models like ChainLocks — Monero can emerge stronger, smarter, and more resilient than before.