V36 share format with merged mining (LTC+DOGE) — community fork

[frstrtr]

Hi everyone,

We've been building on jtoomim/p2pool to add merged mining (AuxPoW) support for Litecoin + Dogecoin on the p2pool share chain. The changes required extending the share format beyond V35, so this is a separate fork rather than a PR — the divergence is too large for a clean merge.

Repository

https://github.com/frstrtr/p2pool-merged-v36

First merged-mined DOGE block

Proof of concept achieved: P2Pool V36 successfully mined its first Dogecoin block via merged mining on 2026-03-23:

DOGE block #6135703 — decentralized LTC+DOGE merged mining with automatic PPLNS payout distribution across all pool participants.

This confirms the full merged mining pipeline works end-to-end: AuxPoW block construction, merged coinbase with PPLNS outputs, block submission to Dogecoin network, and reward distribution — all without any centralized pool operator.

What V36 adds

Protocol:

• V36 share format with pubkey_type field — native P2SH and bech32 address support in shares
• AuxPoW commitment in coinbase — merged mining of Dogecoin on the same share chain
• Merged chain rewards distributed through the same PPLNS consensus as parent chain
• Merged payout hash commitment in shares for consensus-level verification
• Backward-compatible transition from V35 via version signaling (95% activation threshold)

Infrastructure:

• MM-Adapter bridge — translates between P2Pool and standard Dogecoin Core RPC (createauxblock/submitauxblock), no custom daemon patches needed
• Multiaddress coinbase — miners specify both LTC and DOGE payout addresses via stratum
• Automatic cross-chain address conversion (LTC P2SH → DOGE P2SH, bech32 → P2PKH)
• Reverse conversion: DOGE address used as parent is auto-detected and converted to LTC
• Share redistribution modes for unnamed miners (--redistribute boost helps tiny miners)

Tested platforms

Platform	Status
Ubuntu/Debian (bare metal)	✅ Tested
Docker (Linux)	✅ Tested
Windows 10/11 (WSL2)	✅ Tested
macOS (Intel x86_64)	✅ Tested

Current status

Running on LTC mainnet with DOGE merged mining. Multiple nodes operational, V35→V36 transition signaling active.

Latest release: v0.14.2-hotfix (2026-03-23)

v0.14.2 highlights:

• Fixed DOGE payout detection (PyPy isalnum() breaking raw script matching)
• Fixed stratum stats singleton losing worker references
• Merged block explorer links now use correct block hash
• V35→V36 transition UI: auto-converted address badges, pending explicit address display
• Security: stratum DDoS detection, per-IP connection limits

v0.14 highlights:

• PPLNS consensus verification for merged mining payouts
• Merged payout hash commitment in share chain
• Docker deployment (Dockerfile + docker-compose.yml)
• Windows 10/11 and macOS (Intel) deployment guides

Links

• Releases
• Changelog
• Install guide

Feedback and questions welcome.

[frstrtr]

First twin block found (LTC + DOGE simultaneously)

P2Pool V36 merged mining just found its first twin block — a single V36-desired, V35-signalling share that solved both chains at once:

• LTC block #3085349
• DOGE block #6154761

This is the first time a P2Pool share has found both a Litecoin and Dogecoin block simultaneously via decentralized merged mining.

Latest release: v0.14.6

[frstrtr]

Update: c2pool v0.1.1-alpha — C++ p2pool with embedded SPV

The C++ reimplementation of p2pool is now available as a cross-platform alpha release:
c2pool v0.1.1-alpha

c2pool implements V35 shares from scratch in C++ and communicates with p2pool v36 peers on the same sharechain. Key difference: embedded LTC + DOGE SPV nodes — no daemon dependencies, just download and run.

Linux, Windows, macOS binaries available. Production tested on mainnet at ~90 GH/s.