Pith Number

pith:C4HOPPFF

pith:2000:C4HOPPFFFWX6YRSFR6VAXRVLHD

not attested not anchored not stored refs pending

A short course in effective Lagrangians

Jose Wudka

arxiv:hep-ph/0002180 v1 · 2000-02-16 · 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{C4HOPPFFFWX6YRSFR6VAXRVLHD}

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	2026-05-18T02:36:50.642103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

170ee7bca52dafec46458faa0bc6ab38f6b4cb71311b5590145af5a538eff3d9

Aliases

arxiv: hep-ph/0002180 · arxiv_version: hep-ph/0002180v1 · doi: 10.48550/arxiv.hep-ph/0002180 · pith_short_12: C4HOPPFFFWX6 · pith_short_16: C4HOPPFFFWX6YRSF · pith_short_8: C4HOPPFF

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/C4HOPPFFFWX6YRSFR6VAXRVLHD \
  | 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: 170ee7bca52dafec46458faa0bc6ab38f6b4cb71311b5590145af5a538eff3d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a548fda33b25d2c4d2ce5dc09a52909f9998f97bbd255c92dfbb38e1f239edd9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2000-02-16T23:14:55Z",
    "title_canon_sha256": "af7b6d168141bc0c5c55ace0ec99ca87fbe715fb02206465e6723e7214205ea9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0002180",
    "kind": "arxiv",
    "version": 1
  }
}