Pith Number

pith:3TN4VFIX

pith:2025:3TN4VFIXPZGTXMYJXSN7ZPJ2RW

not attested not anchored not stored refs pending

New contribution to the anomalous $\pi^0\rightarrow\gamma\gamma$ decay in SU(2) chiral perturbation theory

Qi Lu, Shu-Peng Wang, Zhen-Yan Lu

arxiv:2507.18468 v1 · 2025-07-24 · 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{3TN4VFIXPZGTXMYJXSN7ZPJ2RW}

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	2026-07-05T11:42:48.446912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcdbca95177e4d3bb309bc9bfcbd3a8da6e78935d4b888956a6554f8456a3967

Aliases

arxiv: 2507.18468 · arxiv_version: 2507.18468v1 · doi: 10.48550/arxiv.2507.18468 · pith_short_12: 3TN4VFIXPZGT · pith_short_16: 3TN4VFIXPZGTXMYJ · pith_short_8: 3TN4VFIX

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/3TN4VFIXPZGTXMYJXSN7ZPJ2RW \
  | 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: dcdbca95177e4d3bb309bc9bfcbd3a8da6e78935d4b888956a6554f8456a3967

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "412b5fa3f9fc7c1a586c6c00abf1e17beef8f66b4c5bc9642888d1bfd49b9269",
    "cross_cats_sorted": [
      "hep-ex"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2025-07-24T14:43:08Z",
    "title_canon_sha256": "ad3e783b605b6c41e5e8bb4ee34b86f18d2003dd92e39b4b9cc9aeebddecff13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.18468",
    "kind": "arxiv",
    "version": 1
  }
}