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.
both the fixed-size array byte, bytes1...bytes32, and the dynamic array bytes types in Solidity
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.
reusable code. In the context of smart contracts, they are deployed only once at a specific address and their code is reused using DELEGATECALL.
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…
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…
Questions related to Geth's --fast feature which enables fast syncing through state downloads rather than downloading the full block data.
a cryptographic family which is used in ethereum and nowerdays provides the standards for sha-3
Questions related to the Ethereum Name Service, a distributed, extensible naming system based on the Ethereum blockchain.
for all questions which appear to be a bug and should be reported to upstream project developers.
Questions related to data and smart contract privacy. For questions related to user anonymity, use [tag:anonymity].
Questions related to the C# .NET Ethereum Web3 RPC Client Library, named nethereum
For questions regarding installation, configuration, running and debugging Ethereum software specifically on the Ubuntu operating system.
attempts by malicious users or software to subvert/manipulate the behaviour of an application or network
For questions regarding installation, configuration, running and debugging Ethereum software specifically on the Android operating system.
A Decentralized Autonomous Organization (DAO) is an organisation governed by rules encoded as Ethereum contracts.
Questions related to the timestamp value of a block, or the use of Ethereum in timestamping.
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…
operation codes specify the instructions to be performed in machine languages