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<title>What Igneum does not claim</title>
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<a href="/claims" data-nav="claims" aria-current="page"><b>What Igneum does not claim</b><span>The limits, stated first.</span></a>
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<a href="/miner" data-nav="miner"><b>Ember, the miner</b><span>One click installs the node, the miner and the prover.</span></a>
<a href="/download" data-nav="download"><b>Download</b><span>Windows, macOS, Linux and HiveOS.</span></a>
<a href="/app" data-nav="app"><b>The app</b><span>What you see while the card mines.</span></a>
<a href="/wallet" data-nav="wallet"><b>The wallet</b><span>Your coins. Final means final.</span></a>
<a href="/miners" data-nav="miners"><b>GPU bench table</b><span>Measured rates, card by card.</span></a>
<a href="/dev-fee" data-nav="dev-fee"><b>The dev fee</b><span>The optional one, in full view, off with one flag.</span></a>
<a href="/faucet" data-nav="faucet"><b>Testnet faucet</b><span>Test coin for an address, once a day.</span></a>
<a href="/metamask" data-nav="metamask"><b>Add to MetaMask</b><span>Igneum as a network in your wallet.</span></a>
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<a href="/live" data-nav="live"><b>Live devnet</b><span>The chain as it grows, one lane per miner.</span></a>
<a href="/explorer" data-nav="explorer"><b>Explorer</b><span>Look a block or an address up.</span></a>
<a href="/journey" data-nav="journey"><b>The journey</b><span>Six phases, four gates, the log behind them.</span></a>
<a href="/bench" data-nav="bench"><b>Engineering log</b><span>Every measurement, with the commands that made it.</span></a>
<a href="/evidence" data-nav="evidence"><b>Evidence</b><span>Every claim and how far it is tested.</span></a>
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<div class="sheet-group"><div class="sheet-head">Learn</div>
<a href="/litepaper" data-nav="litepaper"><b>Litepaper</b><span>The design, as published.</span></a>
<a href="/ledger" data-nav="ledger"><b>Ledger</b><span>Every criticism, answered or conceded.</span></a>
<a href="/claims" data-nav="claims" aria-current="page"><b>What Igneum does not claim</b><span>The limits, stated first.</span></a>
<a href="/randomx" data-nav="randomx"><b>Igneum vs RandomX</b><span>What was kept and what was rebuilt for GPUs.</span></a>
<a href="/provenance" data-nav="provenance"><b>Built on the shoulders</b><span>Every borrowed part, credited.</span></a>
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<div class="breadcrumb"><a href="/">Igneum</a><span>/</span><span>What Igneum does not claim</span></div>
<div class="page-heading"><div><div class="eyebrow"><span class="line"></span>The limits, stated first</div>
<h1>What Igneum does not claim.</h1>
<p class="lead">Every limit we know of, written down here before anyone else writes it. The same text as the litepaper’s last section; the ledger carries every criticism in full.</p></div></div>
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<div class="derived"><p>Here are the limits, stated before anyone else states them.</p>
<ul>
<li><strong>A proof in seconds.</strong> Not at launch. Proving a full block today needs a cluster of 100 to 200 consumer GPUs, approximate, so Igneum launches with proofs within about a minute and tightens as hardware improves. Users still see their transaction land in one second.</li>
<li><strong>A chip is impossible.</strong> No. A chip wired for one program is a bad bet, because the program moves before it ships. A programmable chip is not stopped by the moving target: everything it needs is public at genesis and every drawn parameter is firmware to it (an address permute, a rotator, an immediate table), so the defence against it is the latency-shadow work (class v4) and the price per joule, not the schedule (the Horizon lane analysis, 6 October 2026, section 5.4; ledger M32). At launch the strongest chip in our public model reaches 2.1x to 3.9x per joule against an RTX 5090, under class v4 from the first block: a memory-controller chip that stores the whole dataset and carries a GPU-class datapath beside its memory for the 100,000 ops per hash in the shadow, the range running from a chip core as costly per operation as the GPU’s (k = 1, modelled on measured card watts, 6 October 2026) to the core Bitmain claimed for its withdrawn Antminer X9 (k about 0.33, never measured); the ladder’s second rung takes that bracket to about 2.8x (modelled, 7 October 2026). Class v5 then makes the dataset the chain’s own state, so a chip that stores it or recomputes it is wrong on every item (designed, 7 October 2026). The baseline the work started from, never the launch state: without class v4 the same stored-dataset chip would reach 1.2x per chip and 5x to 9x per joule in our model (6 October 2026); the Ethash chips of this class reached 2.1x to 4.8x (Linzhi Phoenix 2020, Jasminer X4 2021, Antminer E9 2022). The strongest recompute chip we can price, holding the whole 256 MiB cache on-die, reaches under 1x per chip against an RTX 5090 (the published model, 5 October 2026: 0.92x per unit of silicon with a 3x fixed-function allowance, approximate). Sources: the chip model analysis (6 October 2026); the ASIC history’s Ethash rows; Counter ASIC 3.0 item 8 (the chip’s per-joule edge over the RTX 5090 falls from 5.6x to 2.1x on GDDR7 at k = 1 and to 3.9x at the X9’s claimed core, the 5090 at 0.2% less rate; gates G1 to G6 passed, 6 October 2026). No hash has stayed free of chips forever; Igneum does not claim to. Monero’s RandomX has held for about seven years; the one chip announced against it, Bitmain’s Antminer X9, was withdrawn in mid-May 2026 before any unit shipped, its claimed core (k about 0.33) never measured. That record says nothing about the price of a chip with the 256 MB cache on its die; that price is a cost model, not a measurement.</li>
<li><strong>A guaranteed income floor.</strong> No. External proving is a small market today. Igneum's miners' electricity cost in it is close to power, but the price they must charge is the subsidy they forgo, which falls as one over network hash: an edge at scale and nothing more.</li>
<li><strong>A memory-hard prototype on every vendor.</strong> Not yet. The 256 MB cache closed the shortcut on Apple silicon (computing items runs 4.8x slower than loading them, measured 3 October 2026). The same ratio on NVIDIA and on a discrete AMD card is Open.</li>
<li><strong>Finality in the first month.</strong> No. No checkpoint locks until the 30-day window has 30 days of history. The first month of mainnet is proof of work with a 12-hour depth, and the text above says so wherever a day count appears.</li>
<li><strong>A cryptography team.</strong> Not yet. One founder working with AI systems wrote the design and the code; external reviewers are named and paid before gate 3, and every security claim here is a design claim until then.</li>
<li><strong>Finality that no amount of hardware can break.</strong> No. A miner holding a third of the last 30 days of blocks can split finality during a network partition, and two thirds can lock a bad checkpoint for a double-spend bounded by the 12-hour finality depth. Reaching a third takes at least ten days of producing every block on the chain, in public; an attacker matching the honest network needs twenty days for a third and never reaches two thirds. That is harder than attacking Bitcoin, where a majority can reorganise at once, and it is the limit of proof of work without stake or an outside chain. Igneum chose those limits on purpose. The floor is also bounded in time: an honest partition that lasts long enough for each side's own new blocks to reach two thirds of its window locks on both sides, about ten days of a 30-day window at an even split, and an operator must then resolve it (measured on a test network, 4 October 2026).</li>
<li><strong>Finality that never pauses.</strong> No. A lock needs two thirds of all 30-day mining weight. Whenever less than two thirds of that weight is connected and signing, finality pauses until it returns or ages out of the window, up to 30 days. The chain keeps running on proof of work and the node reports the pause.</li>
<li><strong>A finished protocol.</strong> The sustained-mining finality rule is the newest piece and the one that external review will try hardest to break. The specification, the review and the benchmarks are published as they happen.</li>
</ul>
<p>Everything in this document is subject to the gates on the roadmap. Nothing in it is an offer to sell anything. Found an error, or a criticism this document does not answer? Email <a href="mailto:hello@igneum.network">hello@igneum.network</a>, or open an issue on the public specification repository: <a href="https://github.com/igneum-network/spec/issues" rel="noopener">github.com/igneum-network/spec/issues</a>. Post reaches Igneum Labs LTD, Unit IH-00-01-01-OF-01, Level 01, Innovation One, Dubai International Financial Centre.</p></div>
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