Pith Number

pith:LOPNIRUI

pith:2004:LOPNIRUIHDWYA6NA4GXVWWBL2I

not attested not anchored not stored refs pending

Present understanding of the nucleon spin structure

A. Metz

arxiv:hep-ph/0412156 v1 · 2004-12-13 · hep-ph · hep-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LOPNIRUIHDWYA6NA4GXVWWBL2I}

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	2026-05-18T00:36:56.060070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b9ed4468838ed8079a0e1af5b582bd21a9486ca43cc19728e2d153805946915

Aliases

arxiv: hep-ph/0412156 · arxiv_version: hep-ph/0412156v1 · doi: 10.48550/arxiv.hep-ph/0412156 · pith_short_12: LOPNIRUIHDWY · pith_short_16: LOPNIRUIHDWYA6NA · pith_short_8: LOPNIRUI

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/LOPNIRUIHDWYA6NA4GXVWWBL2I \
  | 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: 5b9ed4468838ed8079a0e1af5b582bd21a9486ca43cc19728e2d153805946915

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "693c5803b3226e56ebf4de55f30d85f246565aeea3bf5aed5d59b343704f2a52",
    "cross_cats_sorted": [
      "hep-ex"
    ],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2004-12-13T10:56:30Z",
    "title_canon_sha256": "ee46f1120de56fd56076f87b6ece2035c1c5fe6419c22d819aed7ee49f638c9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0412156",
    "kind": "arxiv",
    "version": 1
  }
}