Pith Number

pith:CJLMJ2HK

pith:2025:CJLMJ2HKJD76UA3UCMWNDQTRVC

not attested not anchored not stored refs pending

New axion contribution to the two-photon decays of neutral pions

Ji-Gui Cheng, Qi Lu, Shu-Peng Wang, Yang Huang, Zhen-Yan Lu

arxiv:2502.04060 v2 · 2025-02-06 · 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{CJLMJ2HKJD76UA3UCMWNDQTRVC}

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	2026-07-05T10:31:01.420485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1256c4e8ea48ffea0374132cd1c271a891c4c39d6222e8ea270c52c4e5d36b3e

Aliases

arxiv: 2502.04060 · arxiv_version: 2502.04060v2 · doi: 10.48550/arxiv.2502.04060 · pith_short_12: CJLMJ2HKJD76 · pith_short_16: CJLMJ2HKJD76UA3U · pith_short_8: CJLMJ2HK

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/CJLMJ2HKJD76UA3UCMWNDQTRVC \
  | 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: 1256c4e8ea48ffea0374132cd1c271a891c4c39d6222e8ea270c52c4e5d36b3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78f79a989e9c6223598fab2f977ec19929768524066a15a1584c971b5d289d31",
    "cross_cats_sorted": [
      "hep-ex"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2025-02-06T13:18:29Z",
    "title_canon_sha256": "dab5609a85f82f173c1f24ff63502a948654974731b6de25dcfbc82218a0d3bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.04060",
    "kind": "arxiv",
    "version": 2
  }
}