GPUs are back · for good

Mined by GPUs.
Proven by fire.

A proof-of-work chain built for graphics cards. The mining program rewrites itself every hour and is compiled on the card, so a chip built for one hour is useless the next. The same cards prove every block. No premine, no stake, no foundation.

Every card mines; today's app proves on a 24 GB NVIDIA card and mines and proves on 32 GB. Measured on 6 October 2026 on eleven rented cards with the patched server: every NVIDIA card from 8 GB proves, 10 GB and up mine and prove (the log); ships when the packaging row lands. AMD and Apple cards mine. The chip model is public: the numbers.

This tab · light client
PREVIEW

Browser checks Igneum

A checkpoint certificate, verified in this tab. Voter list from the node.

Block proof
not yet
Checkpoint
checking
Proof system
BLS aggregate, version 1
Verified in this tab
checking
1 / s
blocks, rising to 10
~60 s
to a proof at launch, the target. First GPU proof of a block: 1.4 s on an RTX 5090, 4 Oct 2026
0
premine
4B
IGN hard cap, ever

100% of emission goes to miners and provers; the protocol carries no fee.

The chain, now

Watch the chain prove itself

Blocks every second, proven in shards, locked every 30 seconds. First live lock 4 Oct 2026: checkpoint 242, 77.4% of all weight, two hours after genesis.

connecting to the devnet observer
chain block pendingshards proven pendinglast lock pendingvote keys in 10 min pendinghash rate pending
pending includedselected chain excluded proven locked checkpoint finality band, with its weight

One node is read every 2 s. Chain block is the EVM block number. Shards proven is every shard paid on the chain so far. Last lock is the latest checkpoint the finality rule locked. Hover or tap a block for its hash, miner, blue score, parents and proof state. Ctrl or cmd and scroll, a pinch, or a click into the scene then scroll, changes the window.

This hour's program

        

A new program every hour: a chip wired for one program is useless. A programmable chip is met by the latency-shadow work and the price per joule, not by surprise. First live swap 4 Oct 2026: Apple, NVIDIA and AMD kept hashing through it, 0 rejected blocks.

Proofs sold to other chains
rollup · batch proofat testnet
bridge · state proofat testnet
rollup · fault proofat testnet
IGN burned from jobsphase two

The same cards sell proofs to rollups and bridges. Jobs are paid on the customer's chain at launch; settlement in IGN with a 10% burn follows the proof bridge in phase two. Live rows arrive with the public testnet, August 2027.

Read more in the litepaper

For the sceptic

Three things to check

Igneum states its limits first. Each of these is measured, published and open to anyone who wants to break it.

Chip economics

The chip model is public

In our public model the strongest chip reaches 5x to 9x per joule against an RTX 5090 today, about 2x once the lever now in its gates ships. The model, its inputs and what it does not cover are in the engineering log.

The numbers
Monero's technique, applied to GPUs

A program that keeps changing

The random program that has kept chips off Monero since 2019 (approximate), rebuilt for graphics cards. The program keeps changing on a schedule fixed at genesis; nobody touches it.

PropertyRandomXIgneum
Who minesCPUsGPUs
Program changesEvery hashEvery hour
Memory2 GB, fixed2 GB, growing (the proposed schedule, fixed at the testnet genesis: 2 GB, doubling at years 4, 12 and 28)
Verified byAny CPUAny CPU
Igneum vs RandomX
Every criticism

What Igneum does not claim

Proof lag, chip economics, the market size, and the one rule external review will try hardest to break: the litepaper states the limits, and the ledger carries every criticism, answered or conceded.

The limits The ledger

Built on the shoulders: Kaspa's GHOSTDAG and node, Monero's RandomX idea, Chia's class-group VDF, Ethereum's EVM, Succinct's SP1, BLS12-381 and Bitcoin's address format. What changed, why, and how it is measured: the provenance section of the litepaper.

Igneum Ember · one click

Install. Start. The card mines.

Igneum Ember finds your GPU, makes a wallet for you and runs the node, the miner and the prover as one app. The card mines; a 24 GB NVIDIA card proves as well.

Devnet. Coins have no value and the chain may be reset.

Public testnet: not yet open; the devnet build is here for people who want to look.

Read more about the miner. The protocol carries no fee. The Ember software takes an optional 1% dev fee, like other GPU miners, off with one flag. Download only from this domain. Nobody from Igneum will ask for your seed.

NVIDIA, AMD, Apple silicon

Found by itself. One worker per card, several identities each.

A new program every hour, no pause

Compiled ahead and swapped in 0.01 ms on the live devnet, 0 rejected blocks.

Signed updates at a safe moment

The card keeps mining through the download. The old version comes back if the new one fails to start.

Four pages: Mine, Earnings, Prove, Settings

Every card is one row: rate, watts, MH per watt, pounds a day at your electricity price, a Tune button. The node is one line.

Ember Tune, measured

An RTX 5090 from 311 W to 227 W for 0.15% of its rate; an RTX 4070 from 106 W to 76 W for none (the Windows rig, 6 Oct 2026). Every number in the bench table.

The Mine page of Igneum Miner 0.3.14 on a three-card PC: 169 MH/s at 532 W, one row per card with its rate, watts, MH per watt, temperature, tune line, Tune button and switch
Igneum Ember (the app window still says Igneum Miner) 0.3.14 on a Windows rig with an RTX 5090, RTX 4070 and RX 9070 XT, live devnet, 6 Oct 2026.
What you agree to when you run the testnet miner

No value. Testnet IGN cannot be sold, bought or redeemed, now or at mainnet. There is no airdrop, no points scheme and no promise tied to testnet balances. Mainnet starts from an empty genesis.

Resets. The chain restarts from a fresh genesis when a consensus rule changes. Every reset is announced at least seven days ahead on this page and in the app. Balances, contracts and history do not carry over. The devnet that runs today resets without notice.

What the app sends home. The app version, a random machine id made at install, your operating system, the node version, the hash rate, and the app, node and miner logs (which name the address the card mines to). They go to the project's log intake, a service Igneum runs on Vercel, and are read by the maintainers to find faults. Never your seed phrase, never a key, never a file you did not make with the app. Nothing is sold or shared.

Wallet set-up for MetaMask: chain id, RPC and the one-click button. The miner software takes an optional 1% fee, off with one flag; the protocol carries no fee to anyone.

How it works

One chain, three jobs

Mine

Any 4 GB card at launch, 8 GB from about year 4 under the proposed schedule, fixed at the testnet genesis: 2 GB, doubling at years 4, 12 and 28, approximate. 80% of each block to its finder.

About the miner

Prove

The same card proves shards and sells proofs to other chains.

How proving pays

Build

Ethereum bytecode, with the differences documented. Proofs of any computation from the miners' cards, verified by the chain itself. 20% of priority fees to the contracts that ran, stated at the fee levels that exist.

Deploy on Igneum

Read more in the litepaper

Igneum Wallet · desktop

Your coins, your wallet

Igneum Wallet holds the key the miner makes for you and verifies finality itself. MetaMask works too.

pending waiting for a block in a block carried, not yet covered final, checkpoint 5 under a checkpoint this wallet verified

Sealed on your machine

24 words, three typed back, a password. Argon2id and XChaCha20-Poly1305. Nothing leaves.

Rewards in one history

Block rewards, proving payouts and transfers. Send with the fee shown. Receive by a QR drawn locally.

Reads your own node

When the miner is installed, the wallet uses its node. Nobody else sees your balance.

macOS first, Windows next. Public testnet first. Download only from this domain. Nobody from Igneum will ask for your seed.

The wallet window: a balance in IGN, an example address with Send and Receive, node and finality panels, and a history of block rewards
Igneum Wallet on a private test network, 5 Oct 2026. The address is an example.
The journey

Where Igneum is right now

loading

Thirteen months, four public gates, each a measurement published pass or fail.

The log below is the engineering log's dated entries, newest first. Day one was 3 October 2026; several entries can share a date because the work is logged as it is run.

Read more in the litepaper

Economics

Every coin, mined

Hard cap of 4 billion IGN, halving every two years for ever.

80% miners 20% provers 0% anyone else in the protocol
0
premine
0
stake, anywhere
0
admin keys in consensus
90%
of blocks must signal to upgrade

No premine, no stake, no fee to any team in the protocol. Base fee burned. The one payment to the project is the Ember software's optional 1% dev fee, off with one flag. On the devnet today the coinbase's 20% output is burned under the tag igneum-proving-pool-v0, and provers are paid from a separate escrow in the execution state credited with the same 20%.

Read more in the litepaper

Read what Igneum does not claim.

The litepaper states the limits first. Proof lag, chip economics, the market size, and the one rule external review will try hardest to break.

The litepaper