📦 Block Production: Round-Robin Validation

See how elected delegates take turns producing blocks

📦 Block Production in DPoS

Once delegates are elected, they take turns producing blocks in a predictable round-robin schedule. This deterministic approach enables extremely fast block times.

Round-Robin Scheduling

🔄

Deterministic Order

Delegates are assigned time slots in a fixed order based on voting results. Everyone knows who produces the next block.

⏱️

Fast Block Times

Each delegate gets 0.5-3 seconds to produce a block. Missing your turn = lost rewards.

🎯

No Competition

Unlike PoW mining races, each delegate has exclusive rights to their time slot. No wasted effort.

🎬 Interactive: Block Production Timeline

Watch how delegates take turns producing blocks in real-time:

Blocks Produced

0

Alice

5,230,000 votes

Slot #1

Bob

4,850,000 votes

Slot #2

Charlie

3,970,000 votes

Slot #3

Diana

3,420,000 votes

Slot #4

Eve

3,180,000 votes

Slot #5
💡

Each delegate gets exactly 2 seconds. After all 5 produce, the cycle repeats. This predictability enables high throughput.

Performance Comparison

MetricBitcoin (PoW)Ethereum (PoS)EOS (DPoS)
Block Time~10 minutes~12 seconds0.5 seconds
Throughput~7 TPS~30 TPS4,000+ TPS
Finality Time~60 minutes~13 minutes1-2 seconds
Energy UsageVery HighLowVery Low
Active Validators~1,000,000 miners~900,000 validators21-101 delegates

Advantages

  • Speed: Sub-second blocks enable real-time applications
  • Scalability: 1000+ TPS on base layer without sharding
  • Efficiency: No wasted computation like PoW mining
  • Predictability: Known schedule = better UX planning
⚠️

Tradeoffs

  • Centralization: Only 21-101 block producers vs 900k+ in PoS
  • Cartel Risk: Delegates could collude to control network
  • Politics: Voting can become influenced by marketing, not merit
  • Trust Required: Network depends on small delegate set
🎯

Real-World Example: EOS

EOS uses 21 active block producers who rotate in a deterministic round. Each produces 12 blocks (6 seconds) before passing to the next. A full round takes 126 seconds (21 producers × 6 seconds).

Block Time

0.5 seconds

Throughput

4,000 TPS

Finality

1-2 seconds