BITCOIN ENDGAME

Real-World Endgame Economics

ENDG is designed to let miners, users, researchers, and market participants study the full monetary arc of a Bitcoin-style chain from launch, to declining subsidies, to permanent fee-only security. It turns a distant theoretical question into something measurable.

• Observe fee-market behavior under real consensus rules
• Study miner incentives as block rewards decline
• Test how security adapts when subsidy disappears

Built to remain usable while the chain runs to its Endgame

ENDG does not simply accelerate the timeline. It also includes a staged difficulty architecture and deterministic liveness safeguards so participants are not relying on theory alone. The goal is to preserve block production, confidence, and network continuity without governance intervention.

• Staged ASERT launch behavior, based on the well-tested Bitcoin Cash ASERT system, designed to balance responsiveness and stability
• Legacy Bitcoin-style retargeting when the network matures
• Automatic consensus failover if legacy behavior ever freezes the chain

Mainnet identity

These values uniquely identify the ENDG network for nodes, wallets, explorers, and exchanges.

Name: Bitcoin Endgame
Ticker: ENDG
Bech32 HRP: endg
Default Port: 21210
Message Start: 0x45 0x4E 0x44 0x47   ("ENDG")
Target Spacing: 10 minutes

Address Prefixes (Base58):
P2PKH: 38
P2SH: 55
WIF: 166

ENDG is a new ledger from genesis. The codebase is Bitcoin-derived with documented consensus changes.

Launch & distribution

ENDG launches as an open, permissionless network from the first block. There is no ICO, presale, or protocol-level premine. Coins enter circulation only through proof-of-work block rewards. As with any newly launched proof-of-work network, early participation may be limited before broader awareness and infrastructure adoption.

• No ICO / presale / fundraising sale.
• No protocol-level premine. No special consensus allocation outside block rewards.
• Rules-based issuance: all coins are issued by consensus through PoW block rewards under the schedule below.

Market viability is not guaranteed; the project is designed to make the chain explicit and resilient.

Emission schedule

ENDG enforces a fixed maximum supply of 21,000,000 ENDG. Subsidies step down through four core eras and a tail phase. The final subsidized block is height 663,043, after which subsidy becomes 0 permanently (fees only).

Core Eras:
0 – 375,864        50.00000000 ENDG
375,865 – 424,044  25.00000000 ENDG
424,045 – 472,224  12.50000000 ENDG
472,225 – 520,404   6.25000000 ENDG

Tail Phase:
520,405 – 536,255   3.12500000 ENDG
536,256 – 552,106   1.56250000 ENDG
552,107 – 567,957   0.78125000 ENDG
567,958 – 583,808   0.39062500 ENDG
583,809 – 599,659   0.19531250 ENDG
599,660 – 615,510   0.09765625 ENDG
615,511 – 631,361   0.04882812 ENDG
631,362 – 647,212   0.02441406 ENDG
647,213 – 663,042   0.01220703 ENDG

Final Precision Block:
663,043             0.00013867 ENDG

After 663,043:       0 (fee-only)

Approximate duration to fee-only at 10-minute target spacing: ~12.6 years.

Difficulty architecture (ASERT → legacy → failover)

ENDG uses staged per-block ASERT early, based on the well-tested Bitcoin Cash ASERT system, to adapt to sustained hash-rate changes without overreacting to short-term variance. The protocol later transitions to Bitcoin’s 2016-block retarget to model legacy behavior. If the legacy system stalls under extreme conditions, deterministic failover rules can restore liveness automatically.

Early Network Difficulty
ENDG uses staged ASERT during the early network era:
Year 1: 2 hours
Year 2: 4 hours
Year 3: 8 hours
Years 4–8: 12 hours

This allows the network to respond within hours rather than weeks
while reducing instability from short-term variance.

Legacy Modeling:
- Deterministic transition at height 421,344
- Bitcoin 2016-block retarget window

Failover (consensus-enforced):
- Median Time Past (MTP) span across the most recent 6 blocks ≥ 48 hours, OR
- Average MTP spacing across the most recent 12 blocks ≥ 60 minutes
=> Deterministic transition back to ASERT (permanent, one-way)

The purpose is straightforward: keep the chain producing blocks in the real world, without governance intervention.