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href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-distributed-ledger/">distributed ledgers</strong></a> that contain transaction data that need to be verified by a <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-decentralized-network/">decentralized network</strong></a> that consists of <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-validator/">validator nodes. The functionality of different blockchains varies across the board.</p>\n<p>The information across all network nodes has to match. Therefore, a coordinator is responsible for issuing milestones &ndash; transactions that are recorded on the blockchain and utilized by validator modes to confirm the validity of their copy of the ledger. Coordinator clients are not utilized in all blockchain systems.</p>\n<p>The <strong>IOTA</strong> blockchain is well-known for utilizing a coordinator client for ledger verification. The coordinator was a crucial part of the IOTA network, as it provided additional security to the blockchain and ensured an even distribution of valid ledger copies.</p>\n<p>The IOTA foundation has since revamped its blockchain system by implementing the next steps on the network&rsquo;s roadmap and removing the coordinator client component.</p>\n<p>Coordinator clients are not perceived positively by many blockchain users. Some critics state that the coordinators negatively impact the decentralized nature of blockchain technology.</p>\n<p>Coordinators hold a concentrated power that could be perceived as <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-centralized/">centralized since they directly affect all the ledger copies within the network. Thus, blockchains with a coordinator client cannot be seen as fully decentralized.</p>\n<p>Since the core idea of blockchain is a decentralized network without a single overseeing authority, the centralized behavior of a coordinator client interferes with what the technology itself promotes. While IOTA employed a coordinator client at its inception, the foundation&rsquo;s goal was to eventually shift operations to a secure decentralized model.</p>\n<p>New <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-consensus-mechanism/">consensus mechanisms</strong></a> have emerged with further blockchain developments. Such mechanisms are notable for providing better decentralization. After removing the coordinator client, IOTA now employs the <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-directed-acrylic-graph-dag/">Directed Acyclic Graph (DAG)</strong></strong></a> to verify transactions and allow nodes to validate them.</p>\n<p>Such developments may see the slow removal of coordinator clients on other blockchain systems. However, some networks can still rely on coordinators as an additional network security measure.</p>","level":"medium","meta_title":"What is Coordinator? 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It can be seen as an intermediary between <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-public-blockchain/">public and <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-private-blockchain/">private blockchains.</p>\n<p>Public blockchain networks are the most popular type of this technology. The Bitcoin blockchain, the first blockchain in the world, was designed to be public. This blockchain type is popular among other <strong>decentralized cryptocurrency blockchains</strong>, like <a href=https://www.bitdegree.org/"https://www.bitdegree.org/crypto/buy-ethereum-eth/">Ethereum or Tezos. Public blockchains are permissionless and <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-decentralization/">decentralized, thus accessible to all willing participants.</p>\n<p><strong>Private blockchain networks</strong> are primarily designed by corporations and can only be accessed within the organizational structure. No outside users can access private blockchains. This model is typically managed by a <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-centralized/">centralized authority</strong></a>.</p>\n<p>Consortium blockchain networks fall in the middle between the features of public and private networks. They are designed and used by groups of companies, allowing&nbsp;them to employ a decentralized network within the consortium. Similar to private networks, no actors outside the consortium can access the blockchain.</p>\n<p>Consortium blockchains are more decentralized than private blockchain networks. All companies within the consortium are independent and equal network members. As in public networks, all consortium members act as nodes within the network with an even level of authority.</p>\n<p>However, unlike public networks, consortium blockchains restrict any outside access to the network. This way, the private corporate data of the corporations are protected, and the network load is smaller since the number of nodes is kept relatively low without outside interference.</p>","level":"easy","meta_title":"What is Consortium Blockchain? Definition & Meaning | Crypto Wiki","meta_description":"Consortium Blockchain meaning: Consortium Blockchain - a privately owned blockchain where the information is not publicly available outside the consortium.","meta_keywords":null,"language":"en","created_at":"2022-02-24T13:13:49.000000Z","updated_at":"2022-05-13T14:32:23.000000Z","preview_url":"https://www.bitdegree.org/crypto/learn/crypto-terms/what-is-consortium-blockchain"},"currentChapter":"C","currentSection":"what-is-contract","chapterTitle":"C","readingLevel":"medium"},"url":"/crypto/learn/crypto-terms/what-is-contract","version":"cdd198d50cbe5c9c21c9329d7c096ffc"}" class="container-fluid d-flex crypto-book p-0">
Crypto Terms: Letter C

What is Contract?

Contract MEANING:
Contract - in traditional finance, a binding agreement between two or more parties. In crypto, smart contracts are self-executing computer programs.
Medium
2 minutes

Let's find out Contract meaning, definition in crypto, what is Contract, and all other detailed facts.

Contracts, in traditional finance, are binding agreements between two or more parties. Historically, some contracts were agreed upon verbally. However, nowadays, it is more common to sign contracts in a written or electronic format.

Contracts are used to officially confirm that party A has agreed to financial dealings with party B, and, in some instances, party C or more co-signers. In the traditional sense, contracts are treated as binding agreements.

If a customer wishes to purchase property, they may have to sign a contract with the entity selling it. The contract would detail the transfer of ownership, property price, the date of signing, and other important details.

Another common model is job contracts. When starting a job or an internship, the employee and the employer sign a contract that details the job responsibilities, the start of employment, the employee’s wage, and other conditions.

Contracts play a vital role in the global economy, as they are required to manage financial processes on a daily basis. Online procedures like purchases, e-banking operations, or money transfers can also be recognized as financial contracts.

In the cryptocurrency industry, contracts have a different meaning, tied to the decentralized digital nature of blockchains. The existence of contracts is seen as one of the most fundamental components of blockchain technology, allowing users to take part in and further develop decentralized finance (DeFi).

Smart contracts are the core element of blockchain technology. They are self-executing computer programs. Smart contracts ensure that transactions and operations completed on the blockchain remain anonymous.

The details of the agreement between the buyer and the seller are recorded by the smart contract and embedded in the blockchain code. The agreement within the program is distributed to the nodes on the blockchain network.

Mining contracts are utilized by blockchain users who wish to mine cryptocurrency but do not have the software or hardware required to take part in the process. In that case, they can employ the services of cloud mining, which allows them to mine without owning physical storage themselves.