In the Bitcoin ecosystem, the BIP 177 proposal is sparking a discussion about the unit of account, the way it is displayed, and the nature of the user experience in Bitcoin. This proposed improvement seeks to fundamentally restructure the way we perceive and use Bitcoin.
Additionally, Satoshi Nakamoto mentioned early on that the software might display more decimal places if Bitcoin experiences massive deflation in the future, and BIP 177 echoes that thought.
What is BIP 177?
BIP 177 (Bitcoin Improvement Proposal 177) is an improvement proposal for Bitcoin that aims to redefine the unit of account and display of Bitcoin.The core idea of BIP 177 is to make Bitcoin amounts more intuitive and easy to understand by eliminating the display of decimal places, thus lowering the barrier to use for new users and facilitating the popularity of Bitcoin in everyday payments.
The proposal was first made by Bitcoin enthusiast and Synonym CEO John Carvalho (@BitcoinErrorLog) on December 10, 2024, in the BitcoinAndLightningLayerSpecs/balls repository hosted on GitHub, which had not yet been assigned a BIP number. On May 8, draft proposal BIP 177 was officially merged and added to the list of Bitcoin BIPs. Currently, BIP-0177 is still in draft form and has not yet been formally adopted, and community discussions are ongoing.
Specifically, BIP 177 proposes to redefine the smallest indivisible unit of Bitcoin (1 BTC = 100,000,000 base units) to be “1 bitcoin,” so that 1 BTC is now equal to 100 million new “bitcoin” units. This change relates only to the way the UI is displayed and does not materially change the consensus rules of Bitcoin (BTC), the 21 million total limit, or the underlying logic of the blockchain ledger.
What is the purpose of the BIP 177 proposal?
The main goal of BIP 177 is to simplify the user experience of Bitcoin and resolve the confusion caused by the way units are currently displayed.
Eliminate the complexity of decimal points: Currently, the price of Bitcoin is usually displayed in BTC. Small transactions (e.g., buying a cup of coffee) can involve numbers like 0.0001 BTC, and the eight decimal places are confusing to new users. BIP 177 proposes to use the smallest indivisible unit as the base unit, so that the amount is displayed as an integer (e.g., 100 bitcoin rather than 0.000001 BTC), which is more intuitive to the day-to-day use of the currency.
Educational value: Newcomers can directly understand that bitcoin is a discrete unit, not a "divisible decimal currency.
Lower Barrier to Entry for New Users: Many people are unfamiliar with the term “Satoshi” and have difficulty understanding the conversion of 1 BTC = 100 million Satoshi. By redefining “bitcoin” as the smallest unit, BIP 177 hopes to make it easier for the average user to understand and accept bitcoin, especially in the context of high prices.What are the pros and cons of BIP 177?
Potential Advantages
Simplifies the user experience: displaying amounts in whole numbers (e.g., 100 bitcoin instead of 0.000001 BTC) is more intuitive and reduces decimal point confusion for new users.
Promote everyday use of Bitcoin: By making small transactions easier to understand, BIP 177 is expected to promote the use of Bitcoin in micropayments and increase its utility as a currency. This will also incentivize more merchants to accept Bitcoin, creating a circular economy.
Consistency with Protocol Logic: The proposal aligns the UI display more closely with the Bitcoin protocol's integer algorithms, reducing the complexity of human conventions and increasing technical transparency.
Low Risk Adjustments: BIP 177 involves no consensus rule changes, no hard forks or upgrades to miner nodes, and only UI adjustments by wallets and exchanges, which means lower implementation costs and less risk.
Expanding the User Base: By lowering the psychological and cognitive barriers, BIP 177 may attract more casual users to the Bitcoin ecosystem, especially in developing countries or among groups unfamiliar with cryptocurrencies.Potential Disadvantages and Challenges
Community Acceptance Challenge: The Bitcoin community has a deep-rooted perception of ‘Bitcoin’ as the standard unit, and changing the name of the unit could be controversial. Some users believe that ‘sats’ is already a community consensus, and redefining ‘bitcoin’ may be seen as an unnecessary complication.
Transitional confusion: In the early stages of BIP 177 implementation, different wallets and platforms may adopt different ways of displaying the unit (some use the new bitcoin, some continue to use BTC or sats), which may lead to user confusion or even be exploited maliciously.
Cultural inertia: The ‘Satoshi’ culture and terminology prevalent in the community may be affected.
Limited practical impact: some critics argue that the change in unit display will have a limited effect on driving Bitcoin's popularity. Bottlenecks in the user experience may come more from transaction fees, confirmation times, or wallet ease of use than from unit names.If Adopted, What Will Happen?
If the BIP 177 proposal is adopted, the general conversion rules would be that the Bitcoin ledger and consensus rules remain unchanged. btc remains unchanged as a cryptocurrency code. Implementations adopting the new standard must convert the original bitcoin value to integer form by multiplying it by 100 million. Specifically:
Unit redefinition: The base unit remains unchanged. Formerly 1 bitcoin = 100,000,000 base units; under the new definition, 1 bitcoin = 1 base unit.
Terminology change: satoshi or sat (satoshi) will be deprecated. All interfaces, documentation and displays should refer to the base unit directly as “bitcoin”. “BTC” is unaffected and still represents 100 million base units.
Display and format changes: The application should allow users to switch between the legacy format (1 BTC = 100 million base units) and the new format (1 bitcoin = 1 base unit). The symbol “₿” can be used to represent bitcoin in base units (the ₿ representation is optional).
For satoshi and sat (satoshi): culturally valuable, but official documentation and interfaces should consistently use “bitcoin” as the unique unit name.The following examples are given in the BIP 177 draft proposal document:
Old display: 0.00010000 bitcoin → New display: ₿10,000 or 10,000 bitcoins or 0.00010000 BTC Old display: 10.23486 bitcoin → New display: ₿1,023,486,000 or 1,023 ₿1,023,486,000 bitcoins or 10.23486 BTC
old display: 0.345 BTC → new display: no change needed, or ₿34,500,000 or 34,500,000 bitcoins
For developers, if BIP 177 is adopted, the interface, API, and documentation will need to be updated to show the base unit as an integer, keeping BTC as the larger unit. For users, the actual value of the asset will remain the same, and apps can help with the transition by using dual displays, hints, etc. (e.g., displaying “0.0001 BTC = 10,000 bitcoins” at the same time).
It is worth noting that, in response to BIP 176’s “bits” (1 bit = 100 satoshi) proposal, the authors of BIP 177 argued that BIP 176 still relies on decimal thinking, requires users to switch units, and fails to address the contradiction between the integer nature of the protocol and the display of decimals. In contrast, BIP 177’s integer solution is more thorough and permanent.
Summary
BIP 177 aims to simplify the user experience and facilitate the use of Bitcoin in everyday transactions by redefining the base unit. While its core strengths lie in lowering the barrier for new users, adhering to the logic of the protocol, and driving the popularity of micropayments, its main challenges lie in community acceptance, transition confusion, and education costs.
As a result, the BIP 177 proposal has sparked a wide-ranging debate, with both supportive and opposing voices. Proponents argue that BIP-177 could significantly improve the user experience of Bitcoin, especially in terms of driving micropayments and popularizing their use. Furthermore, redefining the unit of account and display of Bitcoin will make users feel like they “own more bitcoin” and increase engagement. Jack Dorsey, the co-founder of Twitter, who has long advocated for bitcoin as an everyday payment tool, also supports BIP 177, stating that ‘satoshi’ is absolutely the wrong term, and that it prevents the average person from acquiring and spending bitcoin.
Opponents argue that BIP-177 could bring confusion and even damage the consensus and market perception of Bitcoin, potentially misleading users into believing that the supply is inflated and shaking trust in Bitcoin’s scarcity.
It is worth mentioning that BIP-177 does not change the total supply of BTC, the issuance mechanism, transaction fees, and other core economic parameters, and only adjusts the display, which has almost zero direct impact on the price of BTC (the actual value of users’ holdings will not change as a result of the redefinition of the unit); however, if BIP 177 were to be adopted, the unit price of 1 bitcoin would be proportionately scaled down to 1/100,000,000 of the unit price of 1 BTC, and the unit price of 1 BTC would be reduced to 1/100,000,000. 100,000,000, but the actual value of the asset remains unchanged. For example, if 1 BTC = $100,000, 1 bitcoin = $0.001 under the new definition.The indirect impact of BIP-177 on the price of BTC will depend on market sentiment and mass user adoption, among other things. The indirect impact of BIP-177 on the BTC price depends on market sentiment and mass adoption by users, etc. If user adoption and the popularity of micropayments are promoted, it may indirectly benefit the price through increased demand.
As a proposal that does not involve a consensus change, BIP 177 is relatively simple to implement, but its success will depend on community consensus and support from wallet developers. In the future, the Bitcoin community will need to weigh the pros and cons of the proposal and decide whether to adopt it in a public discussion.BIP 177 represents an important thought in the evolution of Bitcoin: how to optimize the user experience while maintaining the stability of the protocol. This discussion of how Bitcoin should be understood and used by the general public goes beyond the technical aspects and touches on the very core of the cryptocurrency’s popularity.
