Pith Number

pith:NGMSDC2T

pith:1999:NGMSDC2TG4BT623VILYNZWZYXT

not attested not anchored not stored refs pending

B => \pi \pi \ell \nu decays in a QCD relativistic potential model

G. Nardulli, M. Ladisa, P. Santorelli, T. N. Pham

arxiv:hep-ph/9909492 v1 · 1999-09-23 · 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{NGMSDC2TG4BT623VILYNZWZYXT}

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	2026-05-18T01:38:55.747688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6999218b5337033f6b7542f0dcdb38bcc23c1016091ad7d156f532e773f68893

Aliases

arxiv: hep-ph/9909492 · arxiv_version: hep-ph/9909492v1 · doi: 10.48550/arxiv.hep-ph/9909492 · pith_short_12: NGMSDC2TG4BT · pith_short_16: NGMSDC2TG4BT623V · pith_short_8: NGMSDC2T

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/NGMSDC2TG4BT623VILYNZWZYXT \
  | 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: 6999218b5337033f6b7542f0dcdb38bcc23c1016091ad7d156f532e773f68893

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b45b146ff87eeea2cd7392476e08b79880420f373f0bd7fa476c72d6fd6af887",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1999-09-23T18:35:52Z",
    "title_canon_sha256": "639ba997eb09e5de376db8a3f36ef9cc30e262cd827b2c84ad8d7b7fa5be4971"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9909492",
    "kind": "arxiv",
    "version": 1
  }
}