Curated for developers, enthusiasts, and learners—this glossary demystifies 80 essential blockchain concepts.
A-Z Blockchain Terms Explained
1. Addresses
Cryptocurrency addresses are alphanumeric strings used to send/receive transactions on the blockchain. They can also be represented as scannable QR codes.
2. Agreement Ledger
A distributed ledger used by multiple parties to negotiate and finalize agreements.
3. Altcoin
Alternative cryptocurrencies to Bitcoin (e.g., Litecoin). Most are Bitcoin forks with modified Proof-of-Work (PoW) algorithms.
4. Attestation Ledgers
Record immutable agreements or declarations, providing cryptographic proof of authenticity.
5. ASIC (Application-Specific Integrated Circuit)
Silicon chips designed for mining cryptocurrencies like Bitcoin by solving SHA-256 hashing problems.
6. Bitcoin
The first decentralized cryptocurrency, operating on a peer-to-peer network without intermediaries.
7. Block
A data packet that permanently records transactions on the blockchain.
8. Blockchain
A decentralized, immutable ledger where data blocks are cryptographically chained together.
9. Block Explorer
An online tool to view past and current transactions on a blockchain.
10. Block Cipher
An encryption method applied to fixed-size data blocks.
Key Blockchain Features
- Decentralization: No single entity controls the network.
- Immutability: Transactions cannot be altered post-confirmation.
- Transparency: Public ledgers enable traceability.
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FAQs
Q: What’s the difference between PoW and PoS?
A: PoW (Proof-of-Work) relies on computational power for mining, while PoS (Proof-of-Stake) uses existing coin holdings to validate transactions.
Q: How does a hard fork differ from a soft fork?
A: A hard fork creates a permanent divergence in the blockchain (e.g., Ethereum Classic), whereas a soft fork remains backward-compatible.
Q: What are smart contracts?
A: Self-executing contracts with terms written in code, enforceable on blockchains like Ethereum.
Conclusion
Mastering these terms equips you to navigate the evolving blockchain landscape. From SHA-256 hashing to DAO governance, each concept underpins the technology reshaping finance and beyond.
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