Pith Number

pith:E6HDIL2V

pith:1999:E6HDIL2VOGIIIJR2VJYQ4JLVBV

not attested not anchored not stored refs pending

Upsilon photoproduction at HERA compared to estimates of perturbative QCD

A.D. Martin, M.G. Ryskin, T. Teubner

arxiv:hep-ph/9901420 v1 · 1999-01-26 · 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{E6HDIL2VOGIIIJR2VJYQ4JLVBV}

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	2026-05-18T04:26:03.213639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

278e342f55719084263aaa710e25750d711b1b10d35b1f6f7ab02d765085f16d

Aliases

arxiv: hep-ph/9901420 · arxiv_version: hep-ph/9901420v1 · doi: 10.48550/arxiv.hep-ph/9901420 · pith_short_12: E6HDIL2VOGII · pith_short_16: E6HDIL2VOGIIIJR2 · pith_short_8: E6HDIL2V

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/E6HDIL2VOGIIIJR2VJYQ4JLVBV \
  | 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: 278e342f55719084263aaa710e25750d711b1b10d35b1f6f7ab02d765085f16d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47a75294aa3da68c970728596c2a773c12c9f4dd7a48c3389cd270abd48e9551",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1999-01-26T17:04:33Z",
    "title_canon_sha256": "2202391b7303ca459e0279cde7c7ea14f0e6b6280785fe5ba91a0e7b3b5ddb69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9901420",
    "kind": "arxiv",
    "version": 1
  }
}