Blockchain//Consensus//Quorum

- Quorum = `floor(N/2) + 1` — the minimum valid signatures to produce a block.

Quorum = floor(N/2) + 1 — the minimum valid signatures to produce a block.

2 validators → quorum = 2 → ZERO fault tolerance (either goes down → network stalls)

3 validators → quorum = 2 → can tolerate 1 failure.

4 validators → quorum = 3 → still only tolerates 1 failure.

Key insight: 2-validator networks have NO high availability — both must be online at all times.