Pith Number

pith:7WOS4R2J

pith:1999:7WOS4R2JOLCVQL2MQA6QXIES4G

not attested not anchored not stored refs pending

Inelastic $J/\psi$ production in polarized photon-hadron collisions

Feng Yuan, Hui-Shi Dong, Kuang-Ta Chao (PKU), Li-Kun Hao

arxiv:hep-ph/9909221 v1 · 1999-09-02 · hep-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{7WOS4R2JOLCVQL2MQA6QXIES4G}

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	2026-05-18T04:26:02.998394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd9d2e474972c5582f4c803d0ba092e184e66d71df20a1279c2465bfc74181a5

Aliases

arxiv: hep-ph/9909221 · arxiv_version: hep-ph/9909221v1 · doi: 10.48550/arxiv.hep-ph/9909221 · pith_short_12: 7WOS4R2JOLCV · pith_short_16: 7WOS4R2JOLCVQL2M · pith_short_8: 7WOS4R2J

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/7WOS4R2JOLCVQL2MQA6QXIES4G \
  | 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: fd9d2e474972c5582f4c803d0ba092e184e66d71df20a1279c2465bfc74181a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb395c9468a3367961232b18d3d3b0611ceae2d57f406079687a562e7f1798de",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1999-09-02T07:41:52Z",
    "title_canon_sha256": "a211cf09e1449a3eb31d65b3cdc9d978e7e6f68118a11bba874eccdacc0503b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9909221",
    "kind": "arxiv",
    "version": 1
  }
}