Pith Number

pith:UDGU2ALF

pith:1997:UDGU2ALFJB7SOB4EPKRMHCCESV

not attested not anchored not stored refs pending

Chiral Perturbation Theory in Few-Nucleon Systems

U. van Kolck

arxiv:hep-ph/9707228 v1 · 1997-07-02 · 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{UDGU2ALFJB7SOB4EPKRMHCCESV}

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	2026-07-04T16:05:07.300844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0cd4d0165487f2707847aa2c388449555bc43017390994ccf0bf2c9314bf046

Aliases

arxiv: hep-ph/9707228 · arxiv_version: hep-ph/9707228v1 · doi: 10.48550/arxiv.hep-ph/9707228 · pith_short_12: UDGU2ALFJB7S · pith_short_16: UDGU2ALFJB7SOB4E · pith_short_8: UDGU2ALF

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/UDGU2ALFJB7SOB4EPKRMHCCESV \
  | 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: a0cd4d0165487f2707847aa2c388449555bc43017390994ccf0bf2c9314bf046

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ce9825ec4f64c22576563a52d10fabd7d5b713c50924434156a9fddad78e7d1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1997-07-02T23:38:01Z",
    "title_canon_sha256": "974b30213b6a3961421cb0c66516e8c92fe26007c4caaa0b625a4cf51680b3e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9707228",
    "kind": "arxiv",
    "version": 1
  }
}