Pith Number

pith:DBRBFSL3

pith:2026:DBRBFSL3JKVX2YMFFOLABJFGLT

not attested not anchored not stored refs pending

LithoGRPO: Fast Inverse Lithography via GRPO Reinforced Flow Matching

Bei Yu, Guojin Chen, Jing Wang, Ping Luo, Robert Mullins, Rui Zhang, Xihui Liu, Xuyuan Xiong, Yao Lai, Zeyue Xue

arxiv:2606.00228 v1 · 2026-05-29 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DBRBFSL3JKVX2YMFFOLABJFGLT}

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.

Receipt and verification

First computed	2026-06-02T01:03:22.259738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

186212c97b4aab7d61852b9600a4a65ce455c415cfacb755c965361a27f61848

Aliases

arxiv: 2606.00228 · arxiv_version: 2606.00228v1 · doi: 10.48550/arxiv.2606.00228 · pith_short_12: DBRBFSL3JKVX · pith_short_16: DBRBFSL3JKVX2YMF · pith_short_8: DBRBFSL3

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/DBRBFSL3JKVX2YMFFOLABJFGLT \
  | 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: 186212c97b4aab7d61852b9600a4a65ce455c415cfacb755c965361a27f61848

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4130cd2d9c331dd3e786d6127fd8f5330eac1254aee5e3b12acea67e60f7e39",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-29T18:01:59Z",
    "title_canon_sha256": "aca9b6b4d394cbd8c14aa3670f0417a11dda37234bc8a09e5fbe75b154cf8143"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.00228",
    "kind": "arxiv",
    "version": 1
  }
}