Pith Number

pith:2XH3MDO2

pith:2026:2XH3MDO2ZDM4ELLO5BP7CLZ4LZ

not attested not anchored not stored refs pending

ChemVA: Advancing Large Language Models on Chemical Reaction Diagrams Understanding

Hao Yu, Huajun Chen, Jiangzhen Fu, Kehua Feng, Keyan Ding, Mingyang Rao, Zhihui Zhu

arxiv:2605.17214 v1 · 2026-05-17 · cs.AI · cs.CL · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2XH3MDO2ZDM4ELLO5BP7CLZ4LZ}

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	2026-05-20T00:03:45.620779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5cfb60ddac8d9c22d6ee85ff12f3c5e429222fde503bf303318ad5b84d55108

Aliases

arxiv: 2605.17214 · arxiv_version: 2605.17214v1 · doi: 10.48550/arxiv.2605.17214 · pith_short_12: 2XH3MDO2ZDM4 · pith_short_16: 2XH3MDO2ZDM4ELLO · pith_short_8: 2XH3MDO2

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/2XH3MDO2ZDM4ELLO5BP7CLZ4LZ \
  | 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: d5cfb60ddac8d9c22d6ee85ff12f3c5e429222fde503bf303318ad5b84d55108

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "471aa944f94b14708cf38f900383144750fef85f93d3370fb90a769f5721a290",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-17T01:12:50Z",
    "title_canon_sha256": "a7c3bf80d8405b0c572f9a6ee9fd02159c6a51d9a3e7948d471a2b8a7db0cd06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17214",
    "kind": "arxiv",
    "version": 1
  }
}