Pith Number

pith:PPTYPGWF

pith:2025:PPTYPGWF2MZYKV7RD7BPRE47EK

not attested not anchored not stored refs pending

First Constraint on Axion-Photon Coupling $g_{\gamma}$ from Neutron Star Observations

Jinchen Jiang, Jun-Chen Wang, Lijing Shao, Qing-Hong Cao, Shunshun Cao, Yandong Liu

arxiv:2506.07546 v1 · 2025-06-09 · hep-ph · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PPTYPGWF2MZYKV7RD7BPRE47EK}

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	2026-07-05T11:18:29.265597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7be7879ac5d3338557f11fc2f8939f22b4ac842657e1877c37aa0535eb79c30e

Aliases

arxiv: 2506.07546 · arxiv_version: 2506.07546v1 · doi: 10.48550/arxiv.2506.07546 · pith_short_12: PPTYPGWF2MZY · pith_short_16: PPTYPGWF2MZYKV7R · pith_short_8: PPTYPGWF

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/PPTYPGWF2MZYKV7RD7BPRE47EK \
  | 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: 7be7879ac5d3338557f11fc2f8939f22b4ac842657e1877c37aa0535eb79c30e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8302a81cc5360e3c49632f1c2c8fb747ee31368336dbb827d9147be2f74fbfe4",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2025-06-09T08:36:09Z",
    "title_canon_sha256": "a5d9e6e682d82d54ccc10ac476e37192169de51a6e7e254d9f31c3950cb981f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.07546",
    "kind": "arxiv",
    "version": 1
  }
}