Crypto Assets (Virtual Currencies): New Assets for the Digital Age

Crypto Asset (Virtual Currency) Fundamentals

Crypto assets, also known as virtual currencies, are digital forms of money exchanged over the internet. Under Japan’s Payment Services Act, three core characteristics define them: they can be used for payments at merchants and exchanged for fiat currency, are electronically recorded and transferred via computers or smartphones, and are distinct from government-issued money or electronic money. The legal term shifted from “virtual currency” to “crypto asset” in May 2020. Still, the phrase “virtual currency” remains widespread in news media and daily conversation.

In essence, a crypto asset is a digitally managed form of money supported by all participants in the network—not by a government or central bank. The critical differences between crypto assets and traditional currencies like the yen or US dollar are who issues them and how their value is maintained. Most crypto assets lack a centralized issuer, and market forces determine their price. In contrast, governments or central banks issue fiat currencies and guarantee their value. Crypto assets offer the potential for global use and 24/7 trading, whereas traditional currencies are generally restricted to domestic use and banking hours. Price volatility is greater for crypto assets, while fiat currencies are relatively stable. Since governments and banks do not control crypto assets, they are less influenced by political and economic factors but also subject to significant price swings.

Both crypto assets and electronic money are digital, but they differ fundamentally. Electronic money—such as Suica, PASMO, or nanaco—is issued by specific companies and fully backed by fiat currency like the yen. Typically, you can only use electronic money at affiliated merchants, its value is pegged to cash, and you cannot redeem it for cash. On the other hand, crypto assets are valued by market supply and demand, can potentially be used broadly across the internet, and are convertible to fiat currency. Many people also invest in crypto assets for capital gains.

Technologies Supporting Crypto Assets (Virtual Currencies)

The majority of crypto assets are built on blockchain technology. Blockchain is a type of database that stores transaction records in “blocks,” which are linked sequentially like a chain. Each block contains multiple transactions and information from the prior block, making data tampering extremely difficult. Modifying one block would require altering all subsequent blocks, which is virtually impossible. Simply put, blockchain is a reliability-enhancing mechanism based on mutual verification by all participants.

Traditional banking systems centrally manage transaction and balance records. In contrast, blockchains use a distributed ledger system, where many networked computers maintain identical records. The advantages include system resilience against single-point failures, strong protection against unauthorized data manipulation, and high transparency, as anyone can verify transaction history. In short, sharing records among many participants creates a safer and more trustworthy system.

Blockchains confirm transactions using “consensus algorithms.” For example, Bitcoin relies on Proof of Work (PoW), where participants solve complex mathematical problems to earn the right to add new blocks. To seize control, a malicious party would need to capture over half of the network’s total computing power, which is highly unlikely. These mechanisms enable secure, trustless systems without central management, allowing everyone to interact with confidence. In summary, blockchains prevent fraud through collective network oversight.

Major Types of Crypto Assets (Virtual Currencies)

There is a wide range of crypto assets, with Bitcoin and Ethereum as the most notable. Bitcoin, introduced in 2008 by an entity known as Satoshi Nakamoto and launched in 2009, was the world’s first crypto asset. The whitepaper “Bitcoin: A Peer-to-Peer Electronic Cash System” described a framework for direct transactions between individuals, bypassing banks. Key attributes of Bitcoin include its fixed supply cap of 21 million coins—creating scarcity, new blocks generated roughly every 10 minutes, a “halving” event every four years that reduces new issuance, and its status as the best-known asset with the largest market capitalization. Bitcoin is often labeled “digital gold” for its role as a store of value.

Ethereum, created in 2015 by developer Vitalik Buterin, is both a crypto asset and a programmable platform. While Bitcoin is focused on payments, Ethereum introduced smart contracts—self-executing agreements that automatically carry out actions when conditions are met (“if A, then B”). This innovation enabled complex transactions and the development of a broad spectrum of decentralized applications (DApps). Key features of Ethereum include support for diverse application development through smart contracts, serving as the foundation for DeFi (decentralized finance) and NFTs (digital ownership proofs), no maximum issuance limit, and the second-largest market capitalization among crypto assets.

Any crypto asset other than Bitcoin is classified as an “altcoin,” with each offering unique features and purposes. XRP is designed for international payments, enabling faster and cheaper transfers than traditional banking, with settlements in seconds or minutes. Solana is a blockchain with high throughput and low fees, processing tens of thousands of transactions per second. Cardano is a “third-generation” blockchain built on academic research, emphasizing security and sustainability. Dogecoin started as a meme but gained value due to celebrity endorsements. These crypto assets each bring distinctive characteristics and drive diversity within the ecosystem.

Characteristics and Benefits of Crypto Assets (Virtual Currencies)

A key advantage of crypto assets is frictionless cross-border transfer. Traditional international wire transfers often involve multiple banks, resulting in high fees and multi-day settlement times. In contrast, crypto asset transfers can reach anywhere in the world within minutes or hours, with lower fees and no need for a bank account. This makes them valuable for international remittances and supporting family overseas. Some merchants and online platforms now accept crypto asset payments as well.

Unlike stocks or bonds, which trade only during exchange hours, crypto assets are accessible 24/7 from anywhere in the world. This enables flexible investing, real-time responses to global market shifts, and trading aligned with users’ lifestyles and schedules.

In conventional finance, central banks and governments control currency, and banks or payment processors serve as intermediaries. Crypto assets, however, operate on decentralized networks without central authorities. This makes them less susceptible to policy changes from governments or financial institutions, less prone to censorship or freezes, and more resilient to system-wide failures.

Because crypto assets enable direct peer-to-peer transactions, they can reduce costs relative to traditional financial services. Examples include lower fees for international transfers, reduced payment infrastructure expenses, and decreased costs for transaction recordkeeping and verification. However, fees can spike during periods of network congestion, especially for major crypto assets like Bitcoin and Ethereum.

Risks and Considerations for Crypto Assets (Virtual Currencies)

Crypto assets are highly volatile, with sharp price swings in short periods. Key factors include a relatively small market size susceptible to large trades, sensitivity to regulatory or technical developments, and heavy influence from speculation and market sentiment. Investors should limit exposure to amounts they can afford to lose and prepare for sudden price declines.

Though crypto assets use secure technology, exchanges and individual wallets are vulnerable to hacking. There have been major incidents involving large-scale theft from leading exchanges. Security risks include losses from exchange hacks, phishing attacks stealing account credentials, and malware targeting wallet private keys. Countermeasures include enabling two-factor authentication and, for significant holdings, using offline hardware wallets for storage.

Crypto asset regulation differs significantly by jurisdiction and changes frequently. Some countries have implemented outright bans. Recent regulatory changes include China’s mining prohibition, Japan’s amendments to the Payment Services Act, and tax policy updates in various nations. Such changes can heavily impact asset prices and usability.

Rising interest in crypto assets has caused an uptick in fraud and illicit solicitation. Investment scams via social media and dating apps are particularly widespread. Common schemes include exaggerated promises like “guaranteed profits,” Ponzi schemes using new investor funds to pay existing investors, solicitations for non-existent crypto assets, and withdrawal scams demanding additional fees. Treat all “guaranteed profit” claims with skepticism and avoid unregistered or suspicious offers.

Regulation and Future Prospects for Crypto Assets (Virtual Currencies)

Japan has one of the world’s most advanced legal frameworks for crypto assets. Amendments to the Payment Services Act in April 2017 introduced mandatory registration for crypto asset exchanges. The 2020 revisions changed the official term to “crypto asset” and tightened rules for customer asset management. Japan’s primary regulations include exchange registration with the FSA and local finance bureaus, robust anti-money laundering (KYC) requirements, mandatory cold (offline) wallet custody for client assets, and taxation of crypto asset gains as miscellaneous income. Ongoing legal reform may bring crypto assets into the scope of the Financial Instruments and Exchange Act (FIEA) as an independent asset class, distinct from traditional securities.

Regulatory approaches differ widely across countries. In the United States, multiple agencies including the SEC (Securities and Exchange Commission) and CFTC (Commodity Futures Trading Commission) oversee the sector, and approval of crypto asset ETFs is advancing. The European Union is developing unified supervision through MiCA (Markets in Crypto-Assets) regulations. Some nations are cautious, tightening oversight of crypto trading, while others accelerate development of central bank digital currencies (CBDCs). Regulatory priorities vary, focusing on consumer protection, financial stability, or innovation, depending on the country.

Crypto asset technology now serves as foundational infrastructure for the digital economy, far beyond payments or investments. Web3 represents a shift from centralized platforms (Web2) to a decentralized internet, returning data ownership to users and enabling decentralized services. DeFi (decentralized finance) provides lending, trading, insurance, and other services without traditional intermediaries, enabled by smart contracts for automation, transparency, and open access. NFTs (non-fungible tokens) prove ownership of digital assets like art, music, and in-game items, opening new revenue models for creators. DAOs (decentralized autonomous organizations) use token-based voting to manage organizations without centralized leadership. These technologies promise to revolutionize industries and accelerate innovation across sectors.

Conclusion

To summarize, crypto assets are blockchain-based digital assets with innovative characteristics not found in traditional finance. They enable easy cross-border transfers, 24/7 trading, greater autonomy through decentralization, and reduced transaction costs. These breakthroughs have the potential to transform existing financial systems and foster new forms of digital economies, including Web3, DeFi, NFTs, and DAOs.

At the same time, crypto assets involve substantial risks—market volatility, security vulnerabilities, regulatory uncertainty, and exposure to scams. Regulations differ by country and will continue to evolve. Anyone considering investment or usage should thoroughly understand the mechanisms and risks and act with full personal responsibility. While the technology is compelling, remain vigilant and skeptical of promises like “guaranteed profits”—prudent, rational decision-making is essential in this space.

FAQ

What are crypto assets, specifically?

Crypto assets are digital assets based on blockchain technology. Well-known examples include Bitcoin and Ethereum. They’re secured by cryptography, operate without central authorities, and allow global transfers and transactions.

Why can crypto assets be profitable?

Crypto assets may appreciate due to supply-demand dynamics, technological advances, and market expansion. Growing adoption of blockchain, institutional investor participation, and new use cases all drive value and investment opportunities.

What are the disadvantages of crypto assets?

Disadvantages include high price volatility, regulatory uncertainty, security risks, liquidity challenges, and technical complexity.