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Goguen

Olga Hryniuk
CardanoDevelopment+ 1
The third phase of Cardano development that brought smart contract support.
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Governance

Olga Hryniuk
GovernanceDecentralization+ 3
There is no single decision-maker controlling Cardano's growth and development. Instead, decentralized processes empower ada holders to make suggestions and collaborate on decisions. All ada holders can suggest a change through the Cardano improvement proposal (CIP) system, or participate in Project Catalyst to vote on what changes should be made.
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Governance action

Emmanuel
VoltaireGovernance action
A governance action is a proposal that gets submitted on-chain for voting. It is an on-chain event triggered by a transaction. Governance actions have an expiration period, after which the action cannot be enacted.  Any ada holder can submit a governance action for a vote on-chain. Once the action is recorded on the ledger, voters submit voting transactions...
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Governance tools

Emmanuel
VoltaireGovernance tools
Governance tools are indispensable in a truly decentralized blockchain like Cardano. These tools foster collaboration and democratic consent, aligning core principles, processes, organizations, and mechanisms. Voltaire’s developmental roadmap has prioritized governance tooling to create greater efficiencies and provide new avenues for community involvement ...
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Hard fork

Olga Hryniuk
Hard forkHard fork combinator+ 1
An irreversible change to a blockchain protocol. Cardano uses a hard fork combinator to ensure smooth upgrades. Unlike earlier blockchains, Cardano hard forks save the chain history and do not cause disruption for users.
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Hardware wallet

Olga Hryniuk
WalletCryptocurrency wallet
A device that stores cryptocurrencies offline and can be connected to a computer to access the funds. Hardware wallets are secure and beneficial in terms of offline security and convenience as they can be carried around and used when needed.
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Hash rate

Vcoincheck.io
HashrateVcoincheck.io
Hash rate refers to the measurement of the processing power of a blockchain network, particularly in the context of proof of work (PoW) consensus algorithms. It measures the number of hash operations that a network can perform in a second. In a PoW, miners use specialized hardware to perform complex mathematical calculations, known as hash functions, to val...
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Haskell

Olga Hryniuk
ProgrammingHaskell
A functional programming language with a focus on producing secure code.  Haskell is well suited to Cardano's high-assurance code, and the need for greater formal verification in the blockchain. Core parts of Cardano are written in Haskell and extensive testing processes ensure Plutus Core smart contracts work properly.
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Height battles

Vcoincheck.io
height battlesVcoincheck.io
In the context of the Cardano network, when nodes receive two valid blocks for a single slot, nodes will select the block with the higher slot number and orphan the other. The reason for this is that the SPOs do not propagate the block within the appropriate timeframe. To completely avoid blocks from getting orphaned in height battles, it is crucial for the...
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Hot wallet

Olga Hryniuk
WalletCryptocurrency wallet+ 1
A cryptocurrency wallet that can be accessed online to store currencies and make transactions. A hot wallet stores a collection of private keys and needs to be connected to the internet to process cryptocurrency operations.
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Hydra

Olga Hryniuk
HydraScalability
A family of protocols that overlay the layer 1 Cardano blockchain to process transactions off the main chain. Hydra uses the main ledger as the secure settlement layer, boosts throughput, minimizes the delay in starting to process transactions, incurs low to no costs, and greatly reduces storage requirements.
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Hydra Head

Olga Hryniuk
HydraScalability
The first of several Hydra protocols, and the basis of improving Cardano's scalability. Each Hydra Head works as an off-chain mini ledger, similar but faster than the main on-chain ledger, shared between small groups of participants. Many complex protocols can be added as layers on top of Cardano.
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Hyperledger Identus

Ivan Irakoze
hyperledger identus
A Linux Foundation project under the Decentralized Trust initiative that provides components for building self-sovereign identity (SSI) solutions. Identus enhances security, privacy, and efficiency in blockchain-based identity management.
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ICO

Vcoincheck.io
ICOVcoincheck.io
ICO stands for 'Initial Coin Offering'. It is a form of a crowdfunding campaign utilized by cryptocurrency startups to raise capital for their projects. During an ICO, investors purchase tokens or coins in the project before it is released to the public. This allows the project to secure funds early on and incentivizes investors to contribute by offering the...
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IEO

Vcoincheck.io
IEOVcoincheck.io
IEO stands for 'Initial Exchange Offering'. It is a type of fundraising method used by cryptocurrency startups to raise capital through a cryptocurrency exchange. In an IEO, the startup partners with an exchange that conducts the offering on behalf of the startup. Investors participate in the IEO by purchasing the startup's tokens or coins directly from the...
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IOG

Olga Hryniuk
IOG
Input Output Global. The new name for IOHK, the company that developed the Cardano blockchain. IOG was registered in the US state of Wyoming in 2018, along with an office in Singapore.
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IOHK

Olga Hryniuk
IOGIOHK
Input Output Hong Kong was founded in 2015 by Charles Hoskinson and Jeremy Wood to create Cardano. The company became Input Output Global in 2018.
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IPFS

Vcoincheck.io
IPFSVcoincheck.io
IPFS stands for InterPlanetary File System. It is a decentralized and distributed peer-to-peer file storage system that aims to provide a more efficient and resilient way to store and access files on the internet. In IPFS, files are broken up into smaller pieces, which are distributed across the network and stored on multiple nodes. When a user requests a f...
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ISPO: initial stake pool offering

Olga Hryniuk
DAppDelegation
A way to raise funds for DApps or projects on Cardano. A project offers its users tokens usable within its DApp in exchange for these users delegating their stake to the project’s pool. This increases the pool’s margin and helps it gain more rewards. Users receive staking rewards and benefit by getting utility tokens. There is no risk of losing funds because...
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Incentive

Olga Hryniuk
CardanoDecentralization+ 2
A way to encourage participants in the system to engage in the network by rewarding them with a return that is proportional to their efforts. Incentives aim to ensure equality and fairness in a distributed network of participants by encouraging consistent, active, and strong participation. Cardano's incentives model uses game theory to calculate the incentiv...
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