Blockchain & Web3 Weekly Bytes Edition #106

⚛️ Qubits Get Closer, 0.14% Fee Fight, Privacy by Design

Apr 4, 2026

Hello Blockchain Enthusiast,

Google’s quantum AI lab published research that has the entire industry recalculating timelines. Morgan Stanley filed for the cheapest spot Bitcoin ETF on the market. And the stablecoin yield bill hit another delay.

TLDR – This Week at a Glance:

Google quantum paper: New research shows Bitcoin could be cracked with fewer than 500,000 qubits
Spot BTC ETF fee war: Morgan Stanley filed for a 0.14% spot Bitcoin ETF, undercutting BlackRock and Grayscale
Market structure bill: The stablecoin yield compromise is under review, pushing the bill release past this week
Tech Spotlight: Post-quantum cryptography: what it is, why it matters now, and who is building for it
Chart of the Week: The estimated qubits needed to break blockchain encryption have dropped from 1 billion to 500,000 since 2012
Affiliate Spotlight: 101 Blockchains offers the Certified Web3 Blockchain Developer (CW3BD) program for builders ready to go deeper on blockchain infrastructure

🧠 Weekly Trivia

Which country was the first to adopt Bitcoin as legal tender?

A) Panama
B) El Salvador
C) Central African Republic
D) Paraguay

*Answer revealed at the end 👇

📰 This Week’s Blockchain and Web3 Highlights

Google Shrinks the Quantum Threat Window: New research from Google’s Quantum AI team estimates that breaking Bitcoin’s cryptography could require fewer than 500,000 qubits, roughly 20x below prior estimates.

Cheapest Spot BTC ETF Enters the Race: Morgan Stanley filed its S-1 for the Morgan Stanley Bitcoin Trust (MSBT), set to list on NYSE Arca at an annual fee of 0.14%. That undercuts BlackRock (0.25%) and Grayscale (0.15%), making it the lowest-cost spot Bitcoin fund in the U.S.

Stablecoin Yield Bill Hits Another Delay: Industry reps and legislative staffers are reviewing revised compromise language on stablecoin yield provisions in the market structure bill. The proposed text bans yield on balances but allows yield tied to activity.

First Post-Quantum L1 Goes Live: Naoris Protocol launched its mainnet on April 1 with a Layer 1 blockchain built from the ground up using NIST-approved post-quantum cryptography. The network has validated over 100 million transactions and started with an invite-only validator model.

Bitcoin ETFs Snap Four-Month Outflow Streak: U.S. spot Bitcoin ETFs recorded $1.32 billion in net inflows in March, the first positive month since October. The prior four months saw a combined $6.4B in redemptions.

ZKsync Bets on Privacy for Institutions: ZKsync’s 2026 roadmap puts its Prividium execution environment at the center of enterprise strategy. Institutions can transact without exposing balances, counterparties, or internal logic.

Tokenized RWAs Cross $27.65 Billion: On-chain real-world asset value reached $27.65B as of April 2, up about 30% in Q1, per RWA.xyz. Tokenized U.S. Treasuries account for roughly $10B. Ethereum leads with $15.4B in distributed RWA value.

🔦 Tech Spotlight: Post-Quantum Cryptography, Explained

Google’s Quantum AI team just shortened the timeline. Their latest paper shows that cracking Bitcoin’s elliptic curve cryptography (ECDSA) could require roughly 20x fewer physical qubits than the industry had assumed. The old estimate of “millions” dropped to fewer than 500,000. That recalculation has pushed post-quantum cryptography to the top of the blockchain infrastructure conversation.

Post-quantum cryptography (PQC) refers to encryption algorithms designed to resist attacks from both classical and quantum computers. These algorithms rely on mathematical problems that stay hard even for quantum machines: lattice-based, hash-based, and code-based schemes. In 2024, the U.S. National Institute of Standards and Technology (NIST) finalized its first set of PQC standards, giving developers a concrete toolkit to build with.

The practical risk today remains low. No quantum computer currently exists with the power to break ECDSA. But the preparation window is shrinking. Google puts the chance of “Q-Day,” the moment a quantum machine can break current encryption in real time, at 10% by 2032. With roughly one-third of all Bitcoin (about 6.9 million coins) held in wallets with exposed public keys, the stakes for late movers are significant. Teams that build PQC into their roadmaps now will be better positioned when that threshold is crossed.

Takeaway: Post-quantum cryptography has moved from academic exercise to infrastructure priority. The gap between current quantum hardware and the power needed to break blockchain encryption is closing faster than expected, and the best teams are already building for it.

📊 Chart of the Week: The Collapsing Qubit Wall

Crypto.com Research mapped the decline in the estimated number of qubits needed to break blockchain cryptography over the past 14 years, and the trend line is steep. Meanwhile, Caltech and Oratomic have published models suggesting it may take as few as 10,000 qubits under certain conditions. Current quantum hardware sits at roughly 1,000 qubits.

The gap between where we are and where the threat begins is shrinking on a log scale. No machine today can execute this attack, but the chart makes the trajectory hard to ignore for any blockchain team planning beyond the next 5 to 10 years.

Source: Crypto.com

😂 A Little Blockchain Humor Break 🤣

This one was about long-term bets. Smaller qubit estimates. A fee war that only makes sense if you believe Bitcoin ETFs are a permanent asset class. Privacy tooling built for regulated institutions. The common signal: the serious players are making infrastructure moves they expect to matter for years.

✅ Trivia Answer: B) El Salvador

In September 2021, El Salvador became the first country in the world to adopt Bitcoin as legal tender alongside the U.S. dollar.

Until next time, stay sharp and stay building.

Thank you,
Blockchain and Web3 Insights

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