Pith Number

pith:HG6E6ZSF

pith:2026:HG6E6ZSFRV7VFY5DASLWOGHFFK

not attested not anchored not stored refs pending

Diffusion Restore: Real-Time Markov Chain Monte Carlo Light Transport

Gurprit Singh, Hans-Peter Seidel, Sascha Holl

Diffusion Restore enables real-time MCMC light transport by using nonreversible diffusion-based dynamics without Metropolis adjustment.

arxiv:2605.08916 v3 · 2026-05-09 · cs.CE · cs.NA · math.NA · math.PR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HG6E6ZSFRV7VFY5DASLWOGHFFK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Empirically, we demonstrate across diverse scenes that Diffusion Restore outperforms all existing MCMC light transport methods and establishes a new state of the art. In addition, we present a GPU implementation in ray tracing and compute shaders and achieve real-time frame rates.

C2weakest assumption

That the chosen nonreversible diffusion-based local dynamics remain valid and unbiased for light transport integrals when Metropolis adjustment is completely avoided, relying only on the theoretical justification provided for the Restore framework extension.

C3one line summary

Diffusion Restore uses nonreversible diffusion dynamics in the Restore MCMC framework to achieve faster, unbiased light transport sampling that outperforms prior MCMC methods and runs in real time on GPU.

Receipt and verification

First computed	2026-05-21T01:05:20.771859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39bc4f66458d7f52e3a304976718e52a80dd9c89f06f3bc9ffa1db0d1361b12b

Aliases

arxiv: 2605.08916 · arxiv_version: 2605.08916v3 · doi: 10.48550/arxiv.2605.08916 · pith_short_12: HG6E6ZSFRV7V · pith_short_16: HG6E6ZSFRV7VFY5D · pith_short_8: HG6E6ZSF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HG6E6ZSFRV7VFY5DASLWOGHFFK \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 39bc4f66458d7f52e3a304976718e52a80dd9c89f06f3bc9ffa1db0d1361b12b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4128a9a541a62d5ca4b47c9209cea83d5ef9c6c5c1a7b20725e45a79cecaec21",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "math.PR"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2026-05-09T12:31:52Z",
    "title_canon_sha256": "7cd653f8d67452b9a5a1b62ce951b35a9576c41173f781cfb8da5f3453a5ff69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.08916",
    "kind": "arxiv",
    "version": 3
  }
}