Pith Number

pith:WWLT2AH6

pith:2018:WWLT2AH6F4Z5D7OZEPZXH6P2TQ

not attested not anchored not stored refs pending

New Bounds on Axion-Like Particles From the Fermi Large Area Telescope observation of PKS $2155-304$

Cun Zhang, Lei Feng, Neng-Hui Liao, Qiang Yuan, Shang Li, Yi-Zhong Fan, Yun-Feng Liang, Zhong-Zhou Ren

arxiv:1802.08420 v1 · 2018-02-23 · 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{WWLT2AH6F4Z5D7OZEPZXH6P2TQ}

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

1 paper in Pith

Dimming of Photon Ring due to Photon-Axion Conversion around Kerr Black Holes

Receipt and verification

First computed	2026-05-18T00:19:20.778124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5973d00fe2f33d1fdd923f373f9fa9c316dcee2984d924dceecf3b4074cc40f

Aliases

arxiv: 1802.08420 · arxiv_version: 1802.08420v1 · doi: 10.48550/arxiv.1802.08420 · pith_short_12: WWLT2AH6F4Z5 · pith_short_16: WWLT2AH6F4Z5D7OZ · pith_short_8: WWLT2AH6

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/WWLT2AH6F4Z5D7OZEPZXH6P2TQ \
  | 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: b5973d00fe2f33d1fdd923f373f9fa9c316dcee2984d924dceecf3b4074cc40f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2925ad771abbd479a0dc605976b52bacaa71dd3429c6ee25c6faf18dab5ca7f6",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2018-02-23T07:45:58Z",
    "title_canon_sha256": "816ab018158862d672976911ac0d2cde4f79acd35d23072724c53c0824e4059e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08420",
    "kind": "arxiv",
    "version": 1
  }
}