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A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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both the fixed-size array byte, bytes1...bytes32, and the dynamic array bytes types in Solidity
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Questions related to the encryption in Ethereum
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Questions related to memory use in Solidity or by nodes
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only used once. It is generated at the beginning of a communication by one communication partner and has to be sent back by the other one in order to prevent replay attacks.
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reusable code. In the context of smart contracts, they are deployed only once at a specific address and their code is reused using DELEGATECALL.
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an economic measure to deter denial of service attacks and other service abuses such as spam on a network by requiring some work from the service requester, usually mea…
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any backwards-incompatible change to the Ethereum protocol, such that a client will need to upgrade in order to remain on the network. This tag is for actual and proposed hardforks, as w…
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Questions related to Geth's --fast feature which enables fast syncing through state downloads rather than downloading the full block data.
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the storage of your private keys for the ethereum clients
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a cryptographic family which is used in ethereum and nowerdays provides the standards for sha-3
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Questions related to the Ethereum Name Service, a distributed, extensible naming system based on the Ethereum blockchain.
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for all questions which appear to be a bug and should be reported to upstream project developers.
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Questions related to data and smart contract privacy. For questions related to user anonymity, use [tag:anonymity].
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Questions related to the C# .NET Ethereum Web3 RPC Client Library, named nethereum
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will be used for question related to POA/POA network
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For questions regarding installation, configuration, running and debugging Ethereum software specifically on the Ubuntu operating system.
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attempts by malicious users or software to subvert/manipulate the behaviour of an application or network
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For questions regarding installation, configuration, running and debugging Ethereum software specifically on the Android operating system.
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A Decentralized Autonomous Organization (DAO) is an organisation governed by rules encoded as Ethereum contracts.
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Questions related to the timestamp value of a block, or the use of Ethereum in timestamping.
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Inheritance in this stackexchange refers to parent child contract relationship where the child contract is considered to be a type of the parent contract and hence implement the parent contract functi…
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operation codes specify the instructions to be performed in machine languages
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graphic processing units, commonly known as graphic cards
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related to importing one file to another which means content of imported file is partially or fully accessible to this file.