Mainnet Live — Block mining active

Proof of Legacy
Memory

The first RAM-latency-bound Proof-of-Work.
A 2006 Core 2 Duo with DDR2 mines 52% of all blocks —
beating every modern machine on the network. Physics can't be faked.

⛏ Start Mining 🔍 Explorer 📈 List on Exchange GitHub

Network

mainnet

live

Height

—

blocks mined

Supply

—

POLM minted

Block Reward

50.00

POLM / block

Difficulty

target: 000…

DDR2 Boost

12×

vs DDR4 baseline

Testnet validated — 816 blocks

Old hardware wins. Mathematically.

These are real results from our testnet across 4 hardware generations. The algorithm doesn't favor speed — it rewards latency.

Rank	Hardware	RAM	Latency	Boost	Blocks	Share	Cost
🥇 #1	Core 2 Duo (2006)	DDR2	~3800 ns	12×	428	52.4% 🏆	~$5 used
🥈 #2	i5 7th gen 4t	DDR4	~1741 ns	1×	284	34.8%	~$80
🥉 #3	AMD 2t	DDR3	~12988 ns	10×	62	7.6%	~$10 used
#4	i5 12th gen 16t	DDR4	~1060 ns	1× (−0.25 pen.)	43	5.3%	~$300

💡 A $5 Core 2 Duo from 2006 outperforms a $300 modern i5 — 9.8× better ROI per dollar invested

DDR2

12×

~3500–8000 ns · yr 0–2

Max boost now

DDR3

10×

~1500–4000 ns · yr 0–4

Strong legacy

DDR4

1×

~900–1900 ns → 8× by yr 6

Grows each halving

DDR5

0.5×

~500–900 ns → 10× by yr 10

Penalized now

For investors

Why PoLM is different

Not another SHA-256 clone. A fundamentally new consensus mechanism with a built-in hardware upgrade cycle.

⚗️

Physics-based security

DRAM latency is a physical property — it cannot be faked, virtualized, or replicated in ASIC. The gap between DDR2 and DDR5 is ~2.5×. In SHA-256, ASICs are 100,000× faster than CPUs. PoLM is naturally ASIC-resistant by design.

📦

Built-in hardware cycle

Every 2 years, the DAG doubles. By year 12, mining requires 256GB of RAM — creating demand for a new hardware category: dedicated RAM mining motherboards, exactly like GPUs transformed Bitcoin mining. A new industry.

♻️

Environmental narrative

Millions of DDR2/DDR3 machines are discarded yearly. PoLM gives them a second life — turning e-waste into mining hardware. Strong ESG story for institutional investors and media coverage.

📊

Fair tokenomics

210M max supply over 30+ years. 50 POLM/block like Bitcoin. Halving every 2 years. Founder allocation only 5% locked for 5 years. No pre-mine, no ICO, no VC allocation.

🌍

Decentralized from day one

Anyone with an old PC can mine. No expensive ASICs needed. No mining pools required. The network is accessible to people in developing countries with old hardware — true democratization.

🔬

Validated algorithm

816 blocks mined across 4 hardware generations on testnet. Results are deterministic and reproducible. All code is open source (MIT). The math checks out — older RAM consistently dominates newer hardware.

Economics

Tokenomics

Designed like Bitcoin — fixed supply, predictable emission, halving every 2 years. No inflation surprises.

Protocol parameters

Symbol	POLM
Max supply	210,000,000
Block reward	50 POLM (now)
Halving	Every 2 years
Block time	30 seconds
Algorithm	PoLM (RAM-latency)
Hash	SHA3-256
Signatures	ECDSA secp256k1
Founder alloc	5% · 5yr lock
Pre-mine	None
ICO/VC	None

Emission schedule

Period	Year	Reward	Supply
Halving 1 ←	0–2	50 POLM	+105M
Halving 2	2–4	25 POLM	+52.5M
Halving 3	4–6	12.5 POLM	+26.2M
Halving 4	6–8	6.25 POLM	+13.1M
Halving 5	8–10	3.125 POLM	+6.6M
Halving 6+	10+	decreasing	→ 210M

💎 At current 50 POLM/block: ~1,440 POLM minted per day. Total supply takes 30+ years to fully mine.

Hardware evolution

The RAM Mining Revolution

Every 2 years the DAG doubles, forcing hardware upgrades. By year 12, the market will need 256GB RAM mining boards — a completely new hardware category, like GPU mining cards.

Year	Halving	DAG	Min RAM	DDR2	DDR3	DDR4	DDR5	DDR6	Hardware needed
0–2 ← NOW	1	256 MB	4 GB	12×	10×	1×	0.5×	—	Any old PC ✓
2–4	2	512 MB	8 GB	10×	8×	4×	2×	0.5×	DDR4 becomes viable
4–6	3	1 GB	16 GB	6×	5×	6×	4×	1×	DDR4 workstations
6–8	4	2 GB	32 GB	3×	3×	8×	6×	2×	High-end workstations
8–10	5	4 GB	64 GB	2×	2×	6×	8×	4×	Server-class RAM rigs
10–12	6	8 GB	128 GB	1×	1×	4×	10×	8×	Dedicated RAM servers
12–14 ⚡	7	16 GB	256 GB	0.5×	0.5×	3×	8×	12×	⚡ RAM mining boards!
14+	8+	32 GB+	512 GB+	0.2×	0.2×	2×	6×	10×	New hardware industry

Technical

How PoLM works

The algorithm is simple, auditable, and rooted in physics. No proprietary hardware advantage possible.

score = (1 / latency_ns) × boost × thread_penalty

boost = (latency_ns / 1000)^0.8 · DDR2 at 3800ns → ~12× effective · 16 threads → 0.25× penalty

Build the Memory DAG

Each epoch seeds a 256MB pseudorandom buffer from chain state. Every access is a real DRAM read — CPU cache is completely defeated. Cannot be optimized away.

Sequential memory walk

100,000 steps per nonce, each depending on the previous. Impossible to parallelize. The only bottleneck is physical DRAM latency — older RAM is slower, scoring higher.

Physics enforces fairness

DDR2 at ~3800ns gets ~12× while DDR4 at ~1060ns gets ~1×. This gap cannot be faked or replicated in silicon. The algorithm's security model is grounded in physics.

For exchanges

List POLM

PoLM is a unique asset with a strong narrative — the only cryptocurrency where old hardware earns more than new hardware. Perfect for listing.

📊

CoinMarketCap / CoinGecko

Mainnet is live with real blocks being mined. Node API fully functional. All data endpoints available for integration. POLM is ready for listing.

Request listing →

🏦

Centralized Exchanges (CEX)

ECDSA secp256k1 signatures. BIP-39/BIP-44 HD wallet support. REST API with standard blockchain endpoints. 30-second block times. Easy integration with existing infrastructure.

Contact for listing →

🔄

Decentralized Exchanges (DEX)

Trust Wallet listing in progress. MetaMask integration planned. Open source code for auditing. MIT license. No restrictions on trading or market making.

Get in touch →

Technical specs for integration

Symbol: POLM

Decimals: 8

Block time: 30 seconds

Confirmations: 6 recommended

Max supply: 210,000,000

Algorithm: PoLM (custom)

Signatures: ECDSA secp256k1

HD wallet: BIP-39 / BIP-44

Node API: node1.polm.com.br:6060

Coin type: SLIP-44 #637

License: MIT (open source)

Contact: contact@polm.com.br

For miners

Start mining in 3 commands

Any PC with DDR2/DDR3/DDR4 RAM can mine. No special hardware needed. Old machines earn up to 12× more than modern ones.

Linux / macOS

    # Clone and install

    git clone https://github.com/proof-of-legacy/Proof-of-Legacy-Memory.git

    cd Proof-of-Legacy-Memory && bash scripts/install.sh

    # Create your wallet (saves 24-word seed phrase)

    python3 polm_bip39.py new "My Mining Wallet"

    # Start mining (replace DDR2 with your RAM type)

    python3 polm.py miner http://node1.polm.com.br:6060 YOUR_ADDRESS DDR2

    [Miner] #1  diff=3  reward=50.0 POLM  DAG=256MB  DDR2  boost=12×

    [Miner] Block #42 found!  Hash: 000a...  Status: ACCEPTED 🎉

Windows 10/11

    :: 1. Install Python 3.9+ from python.org (check "Add Python to PATH")

    :: 2. Double-click: scripts\install.bat

    :: 3. Double-click: start_all.bat

    → Wallet UI opens at http://localhost:7070

    → Explorer opens at http://localhost:5050

    → Mining starts automatically

Auto-detect your RAM type

Linux: sudo dmidecode -t memory | grep Type:
Windows: wmic memorychip get memorytype
Or let PoLM detect automatically — run python3 polm.py info

View on GitHub Open Explorer Node API

Proof of LegacyMemory