Key concepts
Learn the key concepts of blockchain in a simple and visual way. Explore this video series designed to break down and explain the fundamentals of this revolutionary technology, taking you step-by-step into the world of blockchain.
What is Blockchain?
Blockchain is a decentralized database where information is stored in multiple copies, ensuring its authenticity through consensus. This eliminates the need for a central entity to validate data and enhances security.
Explained by Jorge Soriano – Criptan
What is Blockchain for?
Blockchain enables the recording of immutable and secure transactions. It is useful in sectors where information needs to be shared and trusted, such as supply chains or financial records, as it prevents manipulation and ensures transparency.
Explained by Miguel Calero – Izertis
What is the consensus mechanism in Blockchain?
It is the system that allows blockchain networks to reach agreements without a central authority. There are different types, such as Bitcoin’s proof of work or the proof of authority used in networks like Alastria.
Explained by Juan Luís Gozalo – Inetum
What are verifiable credentials?
These are secure digital documents that allow automated and cryptographically protected information verification. Unlike traditional certificates, they can be validated without human intervention and preserve user privacy.
Explained by Miguel Calero – Izertis
What is a cryptocurrency?
A cryptocurrency is a blockchain-based digital asset that enables secure and decentralized value exchange. All transactions are recorded in an immutable ledger, ensuring transparency and preventing fraud.
Explained by Jorge Soriano – Criptan
What is a custodian?
A custodian is a regulated entity responsible for storing and managing clients’ digital assets or wallets. It can safeguard private keys or directly hold cryptocurrencies like Bitcoin and Ethereum, ensuring their security.
Explained by Ángel Luis Quesada – Onyze
What is DeFi?
Decentralized Finance (DeFi) is an ecosystem of blockchain-based financial services that eliminate intermediaries. It enables peer-to-peer transactions through automated protocols, opening new opportunities in the financial sector.
Explained by Iñigo de la Mata – Grant Thornton
What is a digital asset?
A digital asset is any value represented on a blockchain, such as tokenized shares or utility tokens. Cryptocurrencies are a specific type of digital asset primarily designed for value exchange between users.
Explained by Carlos Navarro – Deloitte
What is gas in Blockchain?
It is the fee paid to the blockchain network to reward miners and validators. This cost ensures the security, stability, and immutable operation of the network, allowing transactions and smart contracts to be executed.
Explained by Alexander Herranz – S&M Services
What does “Not your keys, not your money” mean?
It is a principle in the crypto ecosystem that warns about digital asset custody. It means that if you do not control your private keys, you do not have full control over your money, as you depend on third parties who can manage it without your permission.
Explained by Ángel Luis Quesada – Onyze
What is ReFi?
Regenerative Finance (ReFi) combines decentralized finance with sustainable investments. Thanks to blockchain, it enables tracking the impact of investments and aligns with ESG funds, which are becoming increasingly relevant in the global market.
Explained by Marcos Carrera – Fujitsu
What is Self-Sovereign Identity (SSI)?
SSI is a digital identity model that gives users control over their personal data. It allows them to decide what information to share, with whom, and for how long, ensuring privacy and transparency through blockchain.
Explained by Carlos Pastor – Inetum
What is a Smart Contract?
A smart contract is a digital program that runs on blockchain automatically and irreversibly. Its code defines the agreement’s rules and ensures execution without intermediaries.
Explained by Alexander Herranz – S&M Services
What is Tokenization?
Tokenization is the process of converting a physical or financial asset into a digital representation on a blockchain. This facilitates its exchange and management with greater transparency and security.
Explained by Carlos Contreras – ioBuilders
How are tokens related to Blockchain?
A token is a digital representation of an asset on a blockchain. It can be a physical or intangible asset, but its value depends on its backing and verification. Blockchain ensures its authenticity and prevents fraud.
Explained by Miguel Calero – Izertis
What is a wallet and what is it for?
A wallet is a digital tool used to store and manage documents, credentials, or digital assets. It simplifies transactions with administrations and companies, eliminating the need for physical documents.
Explained by Carlos Pastor – Inetum
What is Web3?
Web3 is the next evolution of the internet, based on decentralization and blockchain. It allows users to manage their digital assets without relying on intermediaries, granting greater control, privacy, and autonomy.
Explained by Iñigo de la Mata – Grant Thornton
What is Zero Knowledge (ZK) technology?
ZK is a cryptographic system that allows verifying information without revealing the data itself. It is used in blockchain to ensure transaction privacy and protect sensitive information.
Explained by Marcos Carrera – Fujitsu