Fungibility describes the property of an asset whose individual units are interchangeable and indistinguishable in value and function.
Most cryptocurrencies, including Bitcoin and Ethereum, are considered fungible assets -- each unit holds the same value and works the same way as any other.
Non-fungible tokens (NFTs) are the opposite: each token is unique and cannot be swapped on a one-to-one basis with another.
For example, one pound of pure gold is equivalent to any other pound of pure gold, regardless of its shape or origin. The same applies to fiat currencies: a five-dollar bill can be exchanged for five one-dollar bills, and the transaction is considered equal because both represent the same underlying value. Other commonly cited examples of fungible assets include commodities, bonds, precious metals, and most cryptocurrencies.
It is sometimes noted that because Bitcoin transactions are recorded on a public ledger, certain coins may be associated with previous illicit activity. Some merchants or service providers may decline to accept coins that have a history linked to criminal use. However, this does not remove Bitcoin's fungibility in principle. Traceability and fungibility are distinct properties. Each Bitcoin unit remains technically identical in terms of its code, network validity, and functionality, regardless of its transaction history. The same logic applies to fiat currencies, which are still considered fungible despite being used in illicit activity throughout history.
A common example is fiat currency. One US dollar bill can be exchanged for another US dollar bill, and both retain the same value. In crypto, one unit of Bitcoin can be swapped for another unit of Bitcoin at the same value. In both cases, the individual units are interchangeable, which is the defining characteristic of fungibility.
Bitcoin is generally considered a fungible asset because each BTC unit shares the same value and functionality on the network. However, because Bitcoin transactions are publicly traceable on the blockchain, some coins may carry associations with previous transactions. In practice, most exchanges and services treat all BTC units as equivalent, and the technical properties of each unit remain identical regardless of history.
A fungible asset has units that are interchangeable and identical in value, such as Bitcoin or the US dollar. A non-fungible asset has units that are unique and not directly interchangeable, such as NFTs, real estate, or original works of art. Two NFTs cannot be swapped on a one-to-one basis at equal value because each carries distinct properties, ownership history, or metadata.
Fungibility is a foundational concept in both traditional finance and crypto. Assets that are fungible can function as effective mediums of exchange because any unit can substitute for another without affecting the transaction. Understanding fungibility, and its contrast with non-fungibility, provides useful context for evaluating different types of crypto assets and how they are used across payments, trading, and decentralised applications.
عملة رقمية يتم تأمينها عن طريق التشفير لتعمل كوسيلة للتداول داخل نظام اقتصادي من شخص لشخص (P2P).
إطار عمل يتكون من إجراءات قانونية وتنظيمية للحد من تدفق الأموال الناشئة عن أنشطة غير قانونية أو مشبوهة.
عملة رقمية أنشأها مطور مجهول الهوية، أو ربما مجموعة مطورين مجهولي الهوية، تحت الاسم المستعار ساتوشي ناكاموت...