Pith Number

pith:4WGQWKF5

pith:1999:4WGQWKF5JNUKTH3ZZCUDM7I7HE

not attested not anchored not stored refs pending

Quark structure of pseudoscalar mesons

Thorsten Feldmann (Univ. Wuppertal)

arxiv:hep-ph/9907491 v2 · 1999-07-26 · hep-ph · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4WGQWKF5JNUKTH3ZZCUDM7I7HE}

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	2026-05-18T02:36:27.670427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e58d0b28bd4b68a99f79c8a8367d1f391b6e7d31bf76be1689e5d239d50e4114

Aliases

arxiv: hep-ph/9907491 · arxiv_version: hep-ph/9907491v2 · doi: 10.48550/arxiv.hep-ph/9907491 · pith_short_12: 4WGQWKF5JNUK · pith_short_16: 4WGQWKF5JNUKTH3Z · pith_short_8: 4WGQWKF5

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/4WGQWKF5JNUKTH3ZZCUDM7I7HE \
  | 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: e58d0b28bd4b68a99f79c8a8367d1f391b6e7d31bf76be1689e5d239d50e4114

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae0695c2ab69e0726252a58f04041989d3048a94c0e022f608fe3fc500c42c84",
    "cross_cats_sorted": [
      "nucl-th"
    ],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1999-07-26T14:21:53Z",
    "title_canon_sha256": "1b82729c0dfe254821c220874d43366907e54982775dca93997ab076b340da28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9907491",
    "kind": "arxiv",
    "version": 2
  }
}