Pith Number

pith:Y4T3KDZT

pith:2026:Y4T3KDZTXLHQF6X2444ETGWMVW

not attested not anchored not stored refs pending

Graph Neural Network Force Fields (GPTFF-mol) for Organic Molecules from Optimization Trajectories (OpenGEM26)

Fankai Xie, Jiangnan Zheng, Miao Liu, Sheng Meng, Tenglong Lu, Yifan Huang

arxiv:2607.21369 v1 · 2026-07-23 · physics.chem-ph · cond-mat.mtrl-sci · cs.CE · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y4T3KDZTXLHQF6X2444ETGWMVW}

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	2026-07-24T01:24:28.837438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c727b50f33bacf02fafae738499accad930c0c667980af39ffab1f07c4ed5a5f

Aliases

arxiv: 2607.21369 · arxiv_version: 2607.21369v1 · doi: 10.48550/arxiv.2607.21369 · pith_short_12: Y4T3KDZTXLHQ · pith_short_16: Y4T3KDZTXLHQF6X2 · pith_short_8: Y4T3KDZT

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/Y4T3KDZTXLHQF6X2444ETGWMVW \
  | 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: c727b50f33bacf02fafae738499accad930c0c667980af39ffab1f07c4ed5a5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f0836a96fb54f4d5fbc562f3ae78e23480cffb5fedb8cdcdbd37c54479a15e9",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "cs.CE",
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2026-07-23T14:35:45Z",
    "title_canon_sha256": "87c8353082914dc72a750383db5f735f0303d32fe9eecbe978bc45f2bff62866"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21369",
    "kind": "arxiv",
    "version": 1
  }
}