Blockchain Fundamentals

Educational introduction to distributed ledgers, consensus, and digital ownership.

Demo content. This material is original Galaxia Academy educational content for exploration. It does not reproduce proprietary databases or claim institutional accreditation.

Key Facts

  • A blockchain is a tamper-evident record shared across a network.
  • Consensus mechanisms validate transactions without a single central authority.
  • Use cases include digital assets, identity, and verifiable credentials.

Multi-Level Learning

explorer

Blockchains are shared notebooks that many computers agree on.

beginner

Transactions are grouped into blocks and linked using cryptography.

Vocabulary

Ledger
A record of transactions or state changes.
Consensus
Agreement among network participants on valid state.

Sources & References

  • Galaxia Academy — original educational content — Not financial advice.