Live chain · Producing blocks every 60s

The first blockchain where mining is useful

Centronium introduces Proof of Useful Work API — a new consensus mechanism where every block is validated by real AI inference. No ASICs. No wasted electricity. Just intelligence.

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Block Height

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Active Miners

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Block Reward

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Circulating

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Mining Pool

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Transactions

Connecting...

The Problem & The Solution

Blockchain mining was never supposed to be wasteful

Bitcoin proved decentralized consensus works. But it also created a $20 billion/year industry of machines that produce nothing except heat and hash collisions. There's a better way.

✕ The old way

Energy waste

Bitcoin mining consumes 67–240 TWh annually — more than many countries. Every hash computed is immediately discarded.

Hardware arms race

ASIC miners cost $2K–$10K+. Average people can't participate. Mining concentrates in the hands of those with capital.

Zero useful output

Trillions of SHA-256 hashes computed per second, producing nothing of value beyond consensus maintenance.

51% attack threshold

Control half the hashrate, control the chain. Mining pools already approach this concentration.

✓ The Centronium way

Zero hardware required

Miners connect API keys from AI providers. No GPUs, no ASICs, no electricity bills. Anyone with an API key can mine.

Real useful output

Every block generates commercially valuable AI inference — text generation, classification, summarization — as a direct byproduct of consensus.

Near-zero energy

Computation happens on existing cloud infrastructure. No dedicated mining hardware consuming electricity.

75% attack threshold

Ed25519 quorum requires 3/4 validator signatures. Stronger Byzantine fault tolerance than any PoW chain.

How It Works

The life of a CENTRO

Follow one token from creation to circulation. Every step produces real value.

Miner connects an API key

Sign up at CentroShield, paste a free API key from Groq, Google, or any supported provider. Join a mining pool. That's it — you're mining.

Network assigns AI inference tasks

The chain generates real AI tasks — text generation, summarization, classification. Your API key processes them through the provider's infrastructure. Real work, real output.

Block produced every 60 seconds

Lottery selects a winner from all active miners and pool members. Block reward flows from the 100M mining pool. Pool members split the reward equally.

Validators attest the block

13+ independent validators sign each block with Ed25519 keys. When 3/4 quorum is reached, the block is finalized. No single authority controls the chain.

CENTRO enters the economy

Miners spend CENTRO on AI compute (CentroSky), music (ASHAViBE), digital drops (CentroDrop), or transfer it via QR notes (QRBull). Real circular economy.

Cycle continues indefinitely

After 25 years and 10 halvings, the era completes. The FOLD mints 100M new CENTRO and the cycle repeats. Perpetual miner incentives. Forever.

Consensus Comparison

Four generations of consensus

From Dwork & Naor (1993) to PoUW API (2026). Each generation solved a problem the last couldn't.

	PoW Bitcoin, 2009	PoS Ethereum, 2022	PoUW Primecoin, 2013	PoUW API Centronium, 2026
Hardware	ASICs required	None (stake)	Own hardware	None (API key)
Energy use	67–240 TWh/yr	Low	Moderate	Near zero
Useful output	✕ None	✕ None	Limited (primes)	✓ AI inference
Entry barrier	$2K–$10K+	32 ETH (~$80K)	GPU/CPU	Free API key
Attack threshold	51%	33% stake	51%	75% validators
Cost model	Capex (hardware)	Capex (tokens)	Capex (hardware)	Opex (API fees)
Post-emission	Fees only	Staking + fees	Fees only	Forever Coin (FOLD)

Tokenomics

The Forever Coin model

100M CENTRO per era. 10 halvings over 20 years. 5 years of tail emission. Then the FOLD mints the next era. Perpetual miner incentives. No fee-only endgame.

CENTRO

Symbol

Ed25519

Signatures

60s

Block Time

38.0

Initial Reward

Halvings

25yr

Era Duration

100M

Per Era

400M

Per Century

PoUW API

Consensus

0.1%

TX Fee

7.655

Tail Emission

FOLD

Era Reset