Pith Number

pith:YQEBVW2V

pith:2019:YQEBVW2V56QMUCE2OQ2IDUKBVF

not attested not anchored not stored refs pending

Open-source QCD analysis of nuclear parton distribution functions at NLO and NNLO

Ilkka Helenius, Marina Walt, Werner Vogelsang

arxiv:1908.03355 v2 · 2019-08-09 · 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{YQEBVW2V56QMUCE2OQ2IDUKBVF}

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	2026-07-05T00:26:09.659830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4081adb55efa0ca089a743481d141a95b271d992e3a11c0c58106944fca1588

Aliases

arxiv: 1908.03355 · arxiv_version: 1908.03355v2 · doi: 10.48550/arxiv.1908.03355 · pith_short_12: YQEBVW2V56QM · pith_short_16: YQEBVW2V56QMUCE2 · pith_short_8: YQEBVW2V

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/YQEBVW2V56QMUCE2OQ2IDUKBVF \
  | 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: c4081adb55efa0ca089a743481d141a95b271d992e3a11c0c58106944fca1588

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83dd9aa55f64d40157e5216258659fb2d0d9d53f4c7ffa59b02bb5498fe8ac71",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2019-08-09T08:10:18Z",
    "title_canon_sha256": "fe5188f701831d614b310bf19a3e78e0c3b48658540c38c248613c2c760a3ed3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03355",
    "kind": "arxiv",
    "version": 2
  }
}