Pith Number

pith:GHBY4Y4C

pith:2024:GHBY4Y4CBL5KV6B4IW3LWUBBLD

not attested not anchored not stored refs pending

Upper limit on the axion-photon coupling from Markarian 421

Hai-Jun Li, Wei Chao, Yu-Feng Zhou

arxiv:2406.00387 v2 · 2024-06-01 · 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{GHBY4Y4CBL5KV6B4IW3LWUBBLD}

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.

Cited by

3 papers in Pith

A Bandpass Axion Or: How I Learned To Stop Worrying About Stars And Love The Lab

Lights, Camera, Axion: Tracing Axions from Supernovae in the Diffuse $\gamma$-ray Sky

Bounds on massive graviton-like particles from searches for axion-like particles coupling to photons

Receipt and verification

First computed	2026-07-05T09:19:57.974214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31c38e63820afaaaf83c45b6bb502158e1045878328329f3bc2fd9c1395738e0

Aliases

arxiv: 2406.00387 · arxiv_version: 2406.00387v2 · doi: 10.48550/arxiv.2406.00387 · pith_short_12: GHBY4Y4CBL5K · pith_short_16: GHBY4Y4CBL5KV6B4 · pith_short_8: GHBY4Y4C

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/GHBY4Y4CBL5KV6B4IW3LWUBBLD \
  | 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: 31c38e63820afaaaf83c45b6bb502158e1045878328329f3bc2fd9c1395738e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "091e40ee3a31f8ad766e40c65de89aacdf6f30ea5ff30b1304609a149462250f",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2024-06-01T10:00:01Z",
    "title_canon_sha256": "8298264a1137dfa4ea1bb3fb4e08eb5b0e6c874f7c956424fd90bdcec4c0e26b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2406.00387",
    "kind": "arxiv",
    "version": 2
  }
}