Summary: A blockchain is a shared, tamper-resistant ledger that records transactions across a network. It enables organizations to coordinate data and value with fewer intermediaries and greater transparency.
Definition: A blockchain is a distributed database where entries can be written but not altered without consensus. Every participant sees the same version of the truth.
Why it matters for business:
- Eliminates reconciliation across silos
- Creates auditability by default
- Strengthens trust across partners
- Enables programmable automation (via smart contracts)
Real-World Examples:
When businesses use it: Supply chain tracking, financial operations, compliance logging, asset tokenization.
Related: Smart Contracts, Ethereum, Public vs. Private Blockchains.
One-Sentence Summary:
