Live voxel research world
Proof of Useful Work / Local Research Preview
Compress the world, preserve every voxel
Search a bounded voxel language for a shorter encoding that reconstructs exactly the same terrain, building, or forged item.
- Exact
- Local-only
- Open source
- No wallet required
Local compute console / pasted NCM stays on this device
Browser compression lab
NC-POUW / VM-1
WASM engine loading...
ReadyThe default cottage is loaded. Paste NCM3 or NCM4P, then press Start.
Live verification
Input format—
Shorter witness—
Deterministic NCM4—
Selected representation—
0 program
0 residual
0 overhead
Target semantic root
-Candidate semantic root
-Mismatch count
-Verification
Not runOriginal semantic model—
NCM4 semantic model—
Exact diff overlay—
Local research preview
No transactions, rewards, wallet, RPC, or telemetry.
Your files never leave this browser.
Useful work / checked byte for byte
Shorter syntax. Identical world.
Lock the target
Import the current format, canonicalize final semantics, and bind it to a domain-separated SHA-256 semantic root.
Search the VM
Typed mutations and spatial crossover rearrange bounded BOX, RUN, EXTRUDE, symmetry, and related instructions.
Patch exactly
A canonical residual adds, restores, clears, or repaints every remaining mismatch, never a visual approximation.
Verify independently
The verifier re-decodes bytes, costs, hashes, limits, and every voxel. Only an exact, strictly smaller result is accepted.
Native multicore miner
Continue in the CLI
The same Rust verifier powers the browser and native CLI. Release files appear only after each platform artifact passes nicechunk-miner self-test and its SHA-256 is published.
nicechunk-miner mine --task task.ncpow --threads auto --time-limit 10m \
--seed 123 --checkpoint state.chk --out result.ncpow
nicechunk-miner verify --task task.ncpow --result result.ncpowRelease status
Reading the signed-off static release manifest...
Protocol v1 / honest boundary
A bounded codec, not a hash lottery
Three exact profiles
terrain_delta preserves the sorted ChunkBroken deletion set. building preserves the final NCM voxel/material map. forged_item preserves equipment identity, full geometry, paint, and grip.
Two separate identities
semanticRoot hashes canonical final meaning. encodingHash hashes one particular byte representation. Different exact encodings can share the former and must differ in the latter.
Hard resource limits
No floating point, recursion, jumps, unbounded loops, dynamic code, clocks, or trusted result statistics. Canonical varints and checked arithmetic are mandatory.
Honest boundary
This preview has no wallet, RPC, reward, pool, leaderboard, or deployed Solana PoUW verifier. A chain adapter interface is reserved; chain claims are not.
FAQ
Does exact mean visually similar?
No. The verifier compares canonical semantics and every coordinate/material identity. One changed voxel, material, immutable forge field, or grip changes the result.
Does the miner prove a globally shortest encoding?
No. It proves that one candidate is exact, bounded, and strictly shorter than the incumbent. No improvement found is a valid result.
Does pasted NCM leave this browser?
No. Pasted NCM is passed directly to local Web Workers. The page includes no upload endpoint, telemetry, third-party CDN, GitHub API request, wallet, or RPC client.
Why can a profile show negative savings?
Some existing NCM3 or NCF1 assets are already highly compact. The demo reports that honestly and never relabels equal or larger bytes as storage savings.
Open implementation
Read, test, and challenge it
The dedicated Miner source and protocol documentation are public. CLI downloads stay hidden until verified release artifacts exist.