Pith Number

pith:OL2F6CB6

pith:2026:OL2F6CB6X4ZWJW5FH2OEMNALMZ

not attested not anchored not stored refs pending

Optimus: A Generic Operator-Level PyTorch Model Transformation Framework

Brian Hirsh, Chi-Keung Luk, Daohang Shi, Edward Yang, Elias Ellison, Huaqing Xiong, Jason Ansel, Jia Chen Ren, Jia Liu, Jiaqi Xu, Junqing Zhou, Menglu Yu, Mingming Ding, Oguz Ulgen, Quanyu Zhu, Ruilin Chen, Shuai Yang, Will Feng, Xu Zhao, Yanbo Liang, Yuhang Yang, Yuzhen Huang

arxiv:2607.02945 v1 · 2026-07-03 · cs.PF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OL2F6CB6X4ZWJW5FH2OEMNALMZ}

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	2026-07-07T01:16:37.549943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72f45f083ebf3364dba53e9c46340b664c25d804b5186e50371d2757e359ad34

Aliases

arxiv: 2607.02945 · arxiv_version: 2607.02945v1 · doi: 10.48550/arxiv.2607.02945 · pith_short_12: OL2F6CB6X4ZW · pith_short_16: OL2F6CB6X4ZWJW5F · pith_short_8: OL2F6CB6

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/OL2F6CB6X4ZWJW5FH2OEMNALMZ \
  | 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: 72f45f083ebf3364dba53e9c46340b664c25d804b5186e50371d2757e359ad34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52683aeaa0b7f9fbc350374b8aefa1c123ddce56ac4f3139a96c72b8f59beca3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PF",
    "submitted_at": "2026-07-03T04:40:04Z",
    "title_canon_sha256": "c10fa54b5d0a428c59717168c26cce75600b64a32ad3416fbb0b81b084750a7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.02945",
    "kind": "arxiv",
    "version": 1
  }
}