From 2f6c7138b6f82f0c7b48cedc2e6446f7e2786821 Mon Sep 17 00:00:00 2001 From: igneum-labs <337424239+igneum-labs@users.noreply.github.com> Date: Mon, 5 Oct 2026 21:12:13 +0000 Subject: [PATCH] evidence and litepaper: the 24 GB tier is measured on the 32 GB card's allocation, not yet on a 24 GB card (consequences C22) Co-Authored-By: Claude Fable 5.1 --- docs/evidence.md | 2 +- site/litepaper.html | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/evidence.md b/docs/evidence.md index 138aaefc4..5748cd2f0 100644 --- a/docs/evidence.md +++ b/docs/evidence.md @@ -40,7 +40,7 @@ Versions in the table: `igneum-pow` is the Rust crate at `igneum-pow/Cargo.toml` | 13 | Every node executes the ordered transactions natively and reaches the same state root | Litepaper Proving ("Every node executes ... natively"), Building ("runs on Igneum unchanged") | tested by the team | repo `f5f8c80`, `8dae48b`; fork `devnet-v4` `dc749905`; revm 43.0.3 | `node tools/evm-smoke/smoke.mjs` against a 3-node `igneumd`; `igneum-exec-diff seq.json`; bench-log "execution layer devnet v3" and "devnet-v4 integration" | Simnet, 3 October 2026: 87 of 87 viem checks, state roots identical on 3 nodes at four heights, 57 executed and 19 skipped transactions agree with plain revm, 0 mismatches. Merged node on real proof of work, 4 October 2026: 84 of 85 checks (the miss needs parallel blocks the network did not produce in 36 s), 59 transfers in 10 chain blocks, state roots identical on 3 nodes, `igneum-exec-diff` 0 mismatches over 59 transactions; the live devnet v4 runs this execution layer. Apple M5 Max. The prover is a stub; state is rebuilt from genesis at start; no EVM transaction relay between nodes | none yet | | 14 | Ethereum bytecode runs unchanged, with the documented differences of spec 7.1 | Homepage Build card; litepaper Building | tested by the team | as row 13; fixes `F-exec-A`, `F-exec-B` (spec 7.5) | `tools/evm-smoke/smoke.mjs`: deploy via viem, `increment`, `hashLoop`, `eth_estimateGas`, `eth_getLogs`; `tools/exec-attacks` scenarios 1 and 3; bench-log "execution layer attack fixes" | Deployment, calls, reverts, logs and gas estimates behave as viem expects; chain id 4463; the prototype pgas table gives 0.0095 to 0.028 pgas per gas, below the design's band before calibration, 3 October 2026. 4 October 2026: a transaction that would cross the block's proving budget is refused by the mempool and, if forced in, aborted and charged with its nonce advanced (25 of 25 checks; 30 of 30 malformed cases). Apple M5 Max. The `Prover` precompile, proof records and the shard planner are not in the node | none yet | | 15 | Every block is proven, with the proof landing within about a minute at launch | Homepage stats ("~60 s to a proof"); litepaper Proving; roadmap phase 3 gate | implemented | repo `d7e1f89` (GPU proof), `e01a3cc`, `292e800`, `eedd136` (`proving/igneum-prove`: shard cutter, MPT witnesses, shard and aggregator guests); SP1 6.8.1; spec 7.2, 7.6 | `proving/windows-wsl2` (SETUP-PROVER, PROVE-BLOCK) on the RTX 5090; `igneum-prove-host --mode block` on `proving/fixtures/`; bench-log "proving v0 on the RTX 5090" and "proving: devnet v4 shards" | First GPU proof of an Igneum block, 4 October 2026, RTX 5090 (WSL2, SP1 cuda, mining paused): fixture `block-78-increment` (2 transactions), core proof 1.4 s (7.3 MB, verify 0.221 s), compressed proof 2.7 s (1.27 MB, verify 0.038 s), post-state and receipts roots identical to the node's; 15.7x and 20.6x faster than a loaded M5 Max CPU. The same day on that CPU (load 38 to 47): a three-shard block proved shard by shard and aggregated by recursion, 19 min (1,139 s) end to end, 245 to 337 s per compressed shard proof, every proof verified. What is not there: no proof is produced, carried or checked on the chain (the devnet prover is a stub that signs claims), the proving pool pays nobody (row 21), the block proven is far below one shard, and the 60-second figure remains a design target; the pass mark is the standard in `docs/benchmarks/proving-e2e.md`. Second RTX 5090 run, 4 October 2026 evening (job run-20261004-173115): a full shard at the provisional S_p (6.75 M pgas, 60.8 M cycles) executed in 1.63 s, core proof 8.3 s (18.1 MB), compressed proof 10.9 s (1.27 MB, verify 0.040 s); a two-shard block (13.5 M pgas) proved shard by shard (11.7 s and 10.0 s) and aggregated in 2.2 s, 24 s of GPU stages end to end, every proof verified, six tampered witnesses rejected. The two host defects (an abort after the upload, an idle wait that turned out to be an unbuffered 18 MB proof save through the WSL2 file bridge, 24 minutes) are fixed (ledger P20) 5 October 2026, live devnet with real transactions (bench-log "real transactions, the first non-empty shard proven and paid"): block 72704 shard 0, 29 transfers, 5,800 pgas, proven on PC 2 in 34 s, verified on the Mac in 0.297 s and paid 1.7623 IGN, 53 s after the chain block executed; of about 1,400 blocks in the 20-minute window 36 were proven (the one prover takes the newest shard assigned to it), so "every block" is not yet true; a second content shard (72803, all copies skipped) failed the native-execution veto on the exporter's block structure, fixed with fixtures the same day, the node side pending the 0.3.9 rollout 5 October 2026, evening (bench-log "proving v1"): the aggregated segment record, the chain rule and the unproven rule are implemented behind `proving_v1_activation_daa` (branch proving-v1, not on the devnet before 0.3.11); on the RTX 5090 a chain of 8 consecutive live blocks proved and aggregated by recursion in 135.6 s with the miner on the card (17 s a block, one proof of 1,272,909 bytes attesting all 8, verified in 0.04 s); the 3-node fast-time harness paid a segment record 1.0 s after submission and refused a late one after its deadline (21 checks); the devnet itself, with one prover, carried proofs for 2.4% of blocks over 30 minutes at a block-to-record latency p50 44 s, p99 52 s. The "within about a minute" holds per proven block; "every block" needs 18 mining 5090s or 6 proving-only cards at empty blocks on the measured rates, and the mandatory rule stays off until the share is one | none yet | -| 16 | A 12 GB card proves one shard in about 20 s (WITHDRAWN 5 October 2026: a 24 GB card proves a full shard at the adopted size in 4.3 s; 32 GB mines and proves) | Litepaper Proving ("The proving budget"); roadmap gate 2 | designed | spec 5.1 (Target), 7.6 (`S_p` provisional, 7,500,000 pgas = `B_p` / 4) | `PROVE-SHARD.bat` on the RTX 5090 (pending); the end-to-end standard in `docs/benchmarks/proving-e2e.md`; bench-log "proving: devnet v4 shards" | Measured on a 32 GB card, not yet on a 12 GB card. A shard at the provisional `S_p` is 60.8 M SP1 cycles on the prototype pgas table (9 cycles per pgas, 44 per EVM gas; the modexp entry about 100x its SP1 cost); on an RTX 5090 (4 October 2026 evening, job run-20261004-173115) it executed in 1.63 s and its compressed proof took 10.9 s, verified in 0.040 s, so the 32 GB card is inside the 20 s target with margin. Whether a 12 GB card proves it at all, and in what time, is the next measurement (an RTX 3060 and an RTX 5060 Ti 16 GB are on order). A per-shard time can be met by shrinking the shard, so the project does not use it as a pass mark 5 October 2026, evening (bench-log "proving v1", the S_p curve): measured on the RTX 5090 with SP1 6.8.1's GPU prover, the card to itself, 1-s nvidia-smi samples: an empty shard 13,874 MiB and 2.2 s; a full shard at the ADOPTED v1 budget (30,000 pgas, 4.7 M cycles) 20,434 MiB and 4.3 s; the full prototype shard (6.75 M pgas, 60 M cycles) 28,307 MiB and 10.8 s; beside the miner 15,670 and 30,039 MiB. No environment knob of SP1 moves the 13.9 GB floor and the GPU server has no options of its own, so on this build a 12 GB card proves nothing, a 16 GB card only empty shards, a 24 GB card the adopted full shard alone and beside the miner (22,210 MiB measured, 13.2 s) and a 32 GB card the prototype shard beside the miner with 2.5 GB spare. The litepaper line now says so; the 12 GB gate returns when a prover build with a smaller floor is measured on a 12 GB card | none yet | +| 16 | A 12 GB card proves one shard in about 20 s (WITHDRAWN 5 October 2026: a 24 GB card proves a full shard at the adopted size in 4.3 s; 32 GB mines and proves) | Litepaper Proving ("The proving budget"); roadmap gate 2 | designed | spec 5.1 (Target), 7.6 (`S_p` provisional, 7,500,000 pgas = `B_p` / 4) | `PROVE-SHARD.bat` on the RTX 5090 (pending); the end-to-end standard in `docs/benchmarks/proving-e2e.md`; bench-log "proving: devnet v4 shards" | Measured on a 32 GB card, not yet on a 12 GB card. A shard at the provisional `S_p` is 60.8 M SP1 cycles on the prototype pgas table (9 cycles per pgas, 44 per EVM gas; the modexp entry about 100x its SP1 cost); on an RTX 5090 (4 October 2026 evening, job run-20261004-173115) it executed in 1.63 s and its compressed proof took 10.9 s, verified in 0.040 s, so the 32 GB card is inside the 20 s target with margin. Whether a 12 GB card proves it at all, and in what time, is the next measurement (an RTX 3060 and an RTX 5060 Ti 16 GB are on order). A per-shard time can be met by shrinking the shard, so the project does not use it as a pass mark 5 October 2026, evening (bench-log "proving v1", the S_p curve): measured on the RTX 5090 with SP1 6.8.1's GPU prover, the card to itself, 1-s nvidia-smi samples: an empty shard 13,874 MiB and 2.2 s; a full shard at the ADOPTED v1 budget (30,000 pgas, 4.7 M cycles) 20,434 MiB and 4.3 s; the full prototype shard (6.75 M pgas, 60 M cycles) 28,307 MiB and 10.8 s; beside the miner 15,670 and 30,039 MiB. No environment knob of SP1 moves the 13.9 GB floor and the GPU server has no options of its own, so on this build a 12 GB card proves nothing, a 16 GB card only empty shards, a 24 GB card the adopted full shard alone and beside the miner (22,210 MiB and 13.2 s, measured on the 32 GB card: the 5090's allocation pattern, not yet a run on a 24 GB card) and a 32 GB card the prototype shard beside the miner with 2.5 GB spare. The litepaper line now says so; the 12 GB gate returns when a prover build with a smaller floor is measured on a 12 GB card | none yet | | 17 | The chip resistance target: a chip gains under 2x over a GPU | Litepaper Mining, "What Igneum does not claim"; homepage "no chip can be built for it" | designed | spec 0.2 (Target); O-1.17 | Public benchmark with a leaderboard by card model and a standing bounty, January 2027 (O-1.17); the on-die-SRAM test on the RTX 5090 (R3.5) | A target, not a measurement. Review round 3 priced a recompute chip with the 256 MiB cache on die at about 2.4x, approximate, before the usual chip-versus-GPU integer gain; the design answer (cache larger than any die) is open (spec 1.16) | none yet | | 18 | The chip resistance measurements: the program is random-access bound, not bandwidth bound, and sits beyond a card's on-chip cache | Litepaper Mining ("bound by memory bandwidth", to be corrected), vs RandomX "Measured so far" | tested by the team | repo `aba248d`, `f2a1a64`, `4b95c5e` | RTX 5090 dataset sweep 4 MiB to 1 GiB with `proto-cuda/host.cu`; bench-log "RTX 5090 first run" and "dataset sweep" | At 1 GiB: 228.1 Mhash/s, 23.7 G random loads/s, 94.9 GB/s useful against a 1,638 GB/s dataset fill; inside the 96 MiB L2 (4 and 64 MiB) 1,340 to 1,353 Mhash/s, about 5.8x faster; 104 against 128 loads per hash gives 228 against 185 Mhash/s, proportional. 3 October 2026, RTX 5090, Windows, CUDA 12.8, version 1 programs. Prototype dataset 1 GiB against 2 GB at genesis; a pure random-read microbenchmark (R3 chip designer, attack 2) has not run; the sweep has not been repeated on version 2 | none yet | | 19 | The lottery hash is sound as a hash: uniform output, deterministic, no out-of-bounds read, fuzzed | Litepaper vs RandomX ("Every number above is measured and logged") | tested by the team | repo `c52307e`, `58a5a63`, `b27da39`; `proto-metal/TESTS.md` | `proto-metal/igneum-bench --fuzz --edge --stats --determinism --memcheck`; `--fuzz 2000` on the version 2 generator; `igneum-census`; bench-log "hardening tests", the re-run on the memory-hard dataset, "generator version 2 adopted" | Version 1: 10,200 random programs, 1,305,600 hashes, 0 mismatches; 14 of 14 edge cases; bit frequency within 2.90 sigma, avalanche mean 31.99 to 32.04 of 32; deterministic fingerprint across 5 runs; every dataset read masked, 3 October 2026. Version 2, 4 October 2026: 2,000 random programs through the Metal cross-check, 8,000 warps, 0 mismatches, 128 loads per hash on every program; 20,000-program census, 5.2% rejected (4.1% static, 1.1% dynamic). Apple M5 Max. Statistics are not a security proof; the edge, stats and memcheck sections were not re-run on version 2 (they do not depend on the generator); the seed derivation review (O-1.4) is open; the fuzz set has run on Metal and the CPU only | none yet | diff --git a/site/litepaper.html b/site/litepaper.html index ec63d5d3d..e1514a562 100644 --- a/site/litepaper.html +++ b/site/litepaper.html @@ -449,7 +449,7 @@ body.all .pager{display:none}

How a block gets proven

Blocks carry transactions only and make no claim about state. Every node executes the ordered transactions natively at once, so users see their transaction land in about a second. The execution is then split into shards of a fixed proving cost. Shards are assigned by lot to eight provers for ten seconds, then open to anyone; there is no bond. Provers run them on consumer cards, and the shard proofs are folded by recursive aggregation into one proof for the block. That proof lands on-chain within about a minute at launch. Because the proof computes the state from the ordered sequence, no node accepts a block with a wrong state root. Full nodes also execute every block natively and reject a proof record whose result differs from their own execution, so a forged proof is a light-client problem and never a chain split. Implemented: the native-execution check on every carried proof record, proving v0 on the devnet (specification section 7). The emergency path for a soundness bug in the proof system is a human one: a new proof-system version is written by people and activates only on miner signalling. Invalid transactions are skipped by rule, the way Kaspa skips conflicting spends.

The proving budget

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Gas prices execution. Proving cost is a different number, so Igneum meters it separately: every transaction pays in both dimensions, and each block has a proving-cost budget set in consensus from measured prover throughput. A transaction that is cheap to run and expensive to prove pays for what it costs the provers. Measured on 5 October 2026 (an RTX 5090 under SP1 6.8.1's GPU prover, the shard size the chain adopts from its fee switch, 30,000 proving gas, about 4.7 million prover cycles): one full shard proves in 4.3 seconds and needs 20.4 GB of GPU memory with the card to itself, so a 24 GB card proves full shards and a 12 GB or 16 GB card does not on this prover build, whose floor is 13.9 GB for even an empty shard; mining and proving on one card needs 32 GB today (the prototype-size shard beside the miner peaked at 30.1 GB) and 24 GB once the adopted shard size is live (22.2 GB measured beside the miner, 13.2 seconds a shard). The old 12 GB gate on the roadmap is withdrawn until a prover build with a smaller floor is measured. The first proofs exist: on 4 October 2026 an RTX 5090 proved a small two-transaction block in 1.4 seconds (2.7 seconds compressed), verified in 0.22 and 0.038 seconds, and a laptop CPU proved a three-shard block end to end in 19 minutes. Later that day the same card proved a full shard at the provisional size, 6.75 million prover gas, which executed in 60.8 million cycles: core proof 8.3 seconds, compressed proof 10.9 seconds, verified in 0.040 seconds; a four-shard block took 44.5 seconds of GPU stages end to end. Since 5 October 2026 shards are assigned and proven on the live devnet. The gate asks for a mid-range card, and an RTX 5090 is not one, so the gate stands open. Once the gate is measured, the budget rises by schedule as hardware improves. The proof system is hash-based, which is what runs on consumer cards, and sits behind a versioned interface, so Igneum can adopt a better proof system when one exists by a miner-signalled release, and runs for ever on the current one if none is adopted.

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Gas prices execution. Proving cost is a different number, so Igneum meters it separately: every transaction pays in both dimensions, and each block has a proving-cost budget set in consensus from measured prover throughput. A transaction that is cheap to run and expensive to prove pays for what it costs the provers. Measured on 5 October 2026 (an RTX 5090 under SP1 6.8.1's GPU prover, the shard size the chain adopts from its fee switch, 30,000 proving gas, about 4.7 million prover cycles): one full shard proves in 4.3 seconds and needs 20.4 GB of GPU memory with the card to itself, so a 24 GB card proves full shards and a 12 GB or 16 GB card does not on this prover build, whose floor is 13.9 GB for even an empty shard; mining and proving on one card needs 32 GB today (the prototype-size shard beside the miner peaked at 30.1 GB) and 24 GB once the adopted shard size is live (22.2 GB beside the miner, 13.2 seconds a shard, measured on the 32 GB card; a 24 GB card has not run it yet). The old 12 GB gate on the roadmap is withdrawn until a prover build with a smaller floor is measured. The first proofs exist: on 4 October 2026 an RTX 5090 proved a small two-transaction block in 1.4 seconds (2.7 seconds compressed), verified in 0.22 and 0.038 seconds, and a laptop CPU proved a three-shard block end to end in 19 minutes. Later that day the same card proved a full shard at the provisional size, 6.75 million prover gas, which executed in 60.8 million cycles: core proof 8.3 seconds, compressed proof 10.9 seconds, verified in 0.040 seconds; a four-shard block took 44.5 seconds of GPU stages end to end. Since 5 October 2026 shards are assigned and proven on the live devnet. The gate asks for a mid-range card, and an RTX 5090 is not one, so the gate stands open. Once the gate is measured, the budget rises by schedule as hardware improves. The proof system is hash-based, which is what runs on consumer cards, and sits behind a versioned interface, so Igneum can adopt a better proof system when one exists by a miner-signalled release, and runs for ever on the current one if none is adopted.

Proving for everyone else

The same miners accept proving jobs from other chains. Rollups post a job, a miner wins it, proves it, and is paid. The job market is permissionless and is Designed, not yet built. At launch a job is paid on the customer's own chain, in the customer's currency, to a payout contract keyed by miner address, because Igneum cannot yet see Ethereum. Settlement in IGN, with 10% of each fee burned, follows when the proof bridge lets Igneum see the payment, in phase two. The Igneum miner client can also bid on other proving networks and take the best price, where a miner chooses to hold their collateral: Boundless provers post ZKC and Succinct provers stake PROVE (approximate, from their documentation). The proving market is small today. Igneum does not depend on it. We know of no other proof-of-work chain selling proofs to other chains.

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The honest bear-market case rests on cost. A miner's card is already running and the power is often domestic, so Igneum miners' marginal cost in the proving market is close to power, which is an edge over data-centre provers and nothing more.

Hardware

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The dataset starts at 2 GB and grows by half a gigabyte a year, so a 4 GB card mines for about four years and an 8 GB card for more than a decade, approximate. 24 GB proves full shards and 32 GB mines and proves on one card, measured 5 October 2026 on this prover build (a 12 GB card does not prove on it: the GPU prover's floor is 13.9 GB). NVIDIA and AMD both work, because the mining program is generated for the architecture both share and the proof system is hash-based. Apple's chips are GPUs with unified memory, so Macs mine too, at about a fifth of a flagship card: Measured, 26.7 against 123 million hashes a second, an Apple M5 Max beside an RTX 5090 on the live devnet, 4 October 2026. A Mac is a poor miner per dollar. There is no CPU mining lane, on purpose, because CPU mining is what botnets farm. Nodes, wallets and exchanges need no GPU at all.

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The dataset starts at 2 GB and grows by half a gigabyte a year, so a 4 GB card mines for about four years and an 8 GB card for more than a decade, approximate. 24 GB proves full shards (measured on a 32 GB card's allocation; a 24 GB card has not run it yet) and 32 GB mines and proves on one card, measured 5 October 2026 on this prover build (a 12 GB card does not prove on it: the GPU prover's floor is 13.9 GB). NVIDIA and AMD both work, because the mining program is generated for the architecture both share and the proof system is hash-based. Apple's chips are GPUs with unified memory, so Macs mine too, at about a fifth of a flagship card: Measured, 26.7 against 123 million hashes a second, an Apple M5 Max beside an RTX 5090 on the live devnet, 4 October 2026. A Mac is a poor miner per dollar. There is no CPU mining lane, on purpose, because CPU mining is what botnets farm. Nodes, wallets and exchanges need no GPU at all.

What a miner's hour looks like

The card hashes the lottery continuously. When the client sees a shard or an external job it can win, it switches the card to proving for a few seconds, posts the proof, and goes back to hashing. The client does the switching and the miner sees one balance.

The protocol carries no fee: no dev fund, no cut to any team. Ember, the miner software, takes an optional 1% dev fee, the way other GPU miners do. One block template in 100 is requested with the dev address instead of yours, by a counter, not a random draw, so it is exactly 1 in 100 and anyone can check it from the source or from the chain. One flag turns it off (--dev-fee 0, a switch in the app, a line in the HiveOS config). The miner prints the fee and the address when it starts. Any other client is welcome.