The Bitcoin network is open – anyone can contribute to Bitcoin and anyone can become a miner. Over the years, Bitcoin has become a vast decentralized network of miners and developers from around the world. It is virtually impossible for miners or users to band together to change the status or ledger of Bitcoin. This inherent immutability gives Bitcoin smart contracts a secure foundation. Ether (ETH), the cryptocurrency of the Ethereum network, is the second most popular digital token after Bitcoin (BTC). As the second largest cryptocurrency by market capitalization (market cap), comparisons between Ether and Bitcoin are quite natural. We compare two smart contract blockchains, Bitcoin and Ethereum, side by side. We find that Bitcoin offers superior performance, security, and profitability thanks to its cleverly constructed core design. This article focuses on their technical differences. Economic, philosophical, legal and ecological differences are beyond the scope of the article.

In contrast, Ethereum`s account model is similar to imperative programming. Each contract call can have side effects that affect another call, making contracts difficult to justify, especially when they become complex. Because of this fragile design choice, it has been plagued by tens, if not hundreds, of attack types that have resulted in a loss of hundreds of millions of dollars. Smart contracts allow developers to create a variety of decentralized applications and tokens. They are used in everything from new financial tools to logistics and gaming experiences, and they are stored on a blockchain like any other crypto transaction. Once a smart contract app has been added to the blockchain, it usually can`t be undone or modified (although there are a few exceptions). So far, Bitcoin`s average transaction fee has peaked at $4.46 in 2022, while Ethereum`s average transaction fee has peaked at $52.46, a noticeable difference of 1,076%. And since Stacks charges smart contracts on Bitcoin in batches, the individual fees for a Bitcoin smart contract are, on average, much lower than a transaction on Bitcoin (with a current average fee of 0.3 STX or well below $1). Another important detail is that contracts usually involve several stages between the parties involved; Very rarely, something that involves a contractual agreement can be facilitated in one step. The user enters coins into the vending machine, which allows him to choose what he buys, the user then makes his selection and the distributor distributes the goods. It is a four-step process: first, injecting money; secondly, the machine arrives at the right selection process; thirdly, the user making the selection; Fourth, the machine that generates the user selection.

While P2PKH scripts require only one signature, multisig scripts can require any number of signatures, possibly belonging to any number of users. Multisignature scripts work as follows. A list of n public keys and a number m less than or equal to n are given. Bitcoins linked to this script can only be issued if m signatures are provided, each corresponding to one of the n public keys listed. This design is called m-of-n multisig. Uniswap: A decentralized exchange that allows users to trade certain types of crypto via smart contracts without a central authority setting exchange rates. Smart contracts are blockchain programs that run autonomously when predefined events or actions occur. The terms of a smart contract are stated in the code to eliminate the need for human execution, arbitration, or enforcement, and since this code is stored on the blockchain, the terms of the contract cannot be tampered with. Home » Tech » Bitcoin vs Ethereum Smart Contracts So let`s bring all this to the house of Bitcoin.

Bitcoin is literally a smart contract platform. That`s what it is, what it always has been, what it should be. Ether works very similarly to Bitcoin and can be used for peer-to-peer payments. It can also be used to create smart contracts. Smart contracts work in such a way that when a certain set of predefined rules is respected, a certain outcome takes place. While the Bitcoin and Ethereum networks operate on the principle of distributed ledgers and cryptography, the two are technically different in many ways. For example, transactions on the Ethereum network may contain executable code, while data attached to Bitcoin network transactions is typically only used to keep notes. Other differences include block time (an Ether transaction is confirmed in seconds, compared to minutes for Bitcoin) and the algorithms they run on: SHA-256 for Bitcoin and Ethash for Ethereum. We conclude that Bitcoin is a better platform for creating smart contracts. Security Smart contracts deal with assets with real financial value and security is paramount. Thanks to its unlimited scalability, smart contracts running on Bitcoin benefit from 1000X cheaper transaction fees than similar ones running on Ethereum¹. When a smart contract receives funds from a user, its code is executed by all nodes in the network to reach consensus on the outcome and the resulting value stream.

In this way, smart contracts can be executed securely without a central authority, even when users carry out complex financial transactions with unknown entities. Ultimately, contracts executed on Bitcoin still require the trust of an arbitrator to be properly executed, but the arbitrator is a distributed network of everyone verifying everyone. The more people involved in the mutual review of this network, the more trustworthy the network is to always get it right. This is Bitcoin`s biggest achievement, but it`s also Bitcoin`s biggest limitation (and any blockchain that smells like real decentralization). Ether and Bitcoin are similar in many ways: each is a digital currency traded via online exchanges and stored in different types of cryptocurrency wallets. Both tokens are decentralized, meaning they are not issued or regulated by a central bank or other authority. Both use a distributed ledger technology known as blockchain. Bitcoin currently has over 18 million bitcoins and Ethereum has 118 million ethers. Although Ethereum has slightly surpassed the $100 million mark, Bitcoin`s market cap is $781 billion, while for Ethereum, it is only $368 billion.

Although Ethereum has more coins on the market, it is not at the level of Bitcoin. The Bitcoin network supports a wide range of smart contracts using its powerful scripting language called Script. Script allows users to set criteria for issuing their bitcoins, and bitcoin transactions lock certain amounts of bitcoin to these scripts. A user must meet these criteria to spend the script-related bitcoins. In this way, all Bitcoin transactions are smart contracts. Like any contract, smart contracts define the terms of an agreement or agreement. However, what makes smart contracts “smart” is that the terms are defined and executed as code running on a blockchain, rather than on paper sitting on a lawyer`s desk. Smart contracts extend the basic idea behind Bitcoin – send and receive money without a “trusted intermediary” like a bank in the middle – to allow virtually any type of business or transaction to be securely automated and decentralized, no matter how complex.

And because they run on a blockchain like Ethereum, they offer security, reliability, and unlimited accessibility. Now let`s look at a very simple example of a smart contract. In traditional finance, currency exchange is expensive and time-consuming. And it is neither easy nor safe for individuals to lend their cash to strangers on the other side of the world. But smart contracts make both scenarios and a host of others possible. Stacks enables Bitcoin smart contracts via the Clarity programming language. Clarity can read and respond to the global state of Bitcoin, which means you can have native exchanges without trust from Bitcoin to other assets, all triggered by Bitcoin transactions on the Bitcoin blockchain. In Bitcoin, smart contracts are located in the so-called unspent transaction outputs (UTXO). Bitcoin also uses a virtual machine called Bitcoin Virtual Machine (BVM) to process smart contracts, which are also stack-based.

The main difference is that there is no persistent storage and therefore no single global state in BVM. Instead, the global state consists of separate UTXs that are independent of each other. Therefore, UTXO is of parallel design to the maximum. BTC and ETH are both digital currencies, but Ether`s main goal is not to establish itself as an alternative currency system, but to facilitate and monetize the operation of the Ethereum smart contract and the dApp platform.