A proof-of-work chain for graphics cards, whose miners prove the blocks.

Included Excluded Selected chain Proven Locked checkpoint
Connecting to the devnet observer.
Live now
pending

pending vote keys mined a block in the last ten minutes; a card runs several.

Proven and paid
pending

shards proven and paid on the chain so far, pending of them in the last ten minutes.

The chip model
5x to 9x

per joule for the strongest chip against an RTX 5090 today in our public model. With the class v4 shadow work it is 2.1x to 3.9x, from a core as costly as the GPU’s (k = 1) to the core Bitmain claimed for its withdrawn Antminer X9 (k about 0.33, never measured); the ladder’s second rung takes that to about 2.8x: the numbers.

One node is read every 2 s. The chip figures are a cost model, not a measurement.

Igneum Ember · one click

Install. Start. The card mines.

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. The public testnet is weeks away: three seed nodes and the public RPC are up, and it opens when the go checklist closes.

Read more about the miner. The protocol carries no fee. The one payment to the project is the Ember software's 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. Questions: the Discord.

Every criticism, answered or conceded, and what Igneum does not claim.

The ledger