Bitcoin (BTC) vs Block21 (B21)

Category
BTCBTC
B21
Launch Year
2009
2025
Creator
Satoshi Nakamoto (anonymous)
Public & transparent
Network
Bitcoin Mainnet
Polygon (EVM compatible)
Total Supply
21,000,000 BTC
2,100,000 B21
Supply Nature
Fixed forever
Fixed forever
Decimals
8
8
ICO / Presale
❌ None
❌ None
Initial Price
$0
$0
Early Liquidity
Extremely low
Intentionally low
Price Discovery
Market-driven
Market-driven
Minting Model
Mining (PoW)
One-time mint
Inflation
Yes (decreasing)
❌ None
Halving / Reduction Logic
Block reward halves every ~4 years
Protocol fee halves on a time schedule
Halving Details
50 → 25 → 12.5 BTC per block
2% → 1% → 0.5% → 0.25% → 0.17% (minimum)
Fee / Reward Trigger
New blocks
DEX sells only
Buy Fee
❌ None
❌ None
Wallet → Wallet Fee
❌ None
❌ None
Sell Fee
❌ None
2% (initial)
Fee Distribution
N/A
1% Treasury, 1% Rewards
Fee Reduction Timeline
Every ~4 years
Year 1 → 50%, then every 2 yrs → gradual, every 4 yrs → 50%
Minimum Fee
N/A
0.17% fixed forever
Admin Control
❌ None
❌ None (after renounce)
Governance
Social consensus
V2 DAO (future)
Transparency
Open-source
Open-source
Upgrade Path
Hard forks
Separate V2 contracts
Guarantees
❌ None
❌ None

Halving Logic

Bitcoin

  • • Bitcoin reduces new supply issuance
  • • Every ~4 years: Block reward halves
  • • Supply inflation decreases
  • • Purpose: enforce long-term scarcity

Block21

  • • Block21 has no inflation to reduce
  • • Instead, it reduces sell-side friction
  • Fee reduction schedule:
  • Year 1: 2.00% → 1.00% (50%)Next phases: Reduced further every ~2 yearsLong-term: Every ~4 years, ~50% reduction
  • • Final state: 0.17% minimum fee, fixed forever

Bitcoin halves issuance.
Block21 halves friction.

Launch Price

Bitcoin launched at$0
Block21 launched at$0
No official price
No valuation
No sale price
Very low initial liquidity (dev)
No guarantee of price

"Initial liquidity was intentionally small, allowing organic market discovery instead of artificial pricing."