Randomizer Log
Verifiable random function (VRF) node selection transparency log
Current slot
---
total slots
Fulfilled slots
---
blocks sealed
Eligible nodes
0
in pool
Pool size
0
total tickets
Current reward model
Reward preview by batch size
Leader gets: ---
Leader gets: ---
Leader gets: ---
Reward split per sealed batch
70%
Block leader
Node that seals the batch
25%
Co-validators
Split between 2 co-signers
5%
Treasury
Ecosystem fund
How VRF selection works
1. Proof of History timestamp
Each slot generates a cryptographic PoH hash from the previous block hash combined with the slot number. This creates an unpredictable seed that cannot be known in advance.
2. Chainlink VRF draw
Chainlink VRF uses the PoH seed to generate a verifiable random number. This number is provably fair - even Chainlink cannot predict or manipulate the outcome.
3. Weighted ticket pool
Each eligible node appears in the pool N times where N equals their total CER tickets. Higher rank means more tickets means higher selection probability - but never guaranteed.
4. Cooldown protection
After sealing a block, a node enters a 5-slot cooldown and cannot be selected again immediately. This prevents any single node from dominating consecutive blocks.
Testnet note
On Sepolia testnet the sequencer uses a dummy VRF coordinator. Real Chainlink VRF will be active on mainnet. No slots have been fulfilled yet as the sequencer requires Chainlink VRF subscription funding to operate.