Pith Number

pith:T7MMK7CN

pith:2020:T7MMK7CN7IXWITHACQXUAUPRFH

not attested not anchored not stored refs pending

Limits on axion-like particles from Mrk 421 with 4.5-year period observations by ARGO-YBJ and Fermi-LAT

Hai-Jun Li, Jun-Guang Guo, Peng-fei Yin, Su-Jie Lin, Xiao-Jun Bi

arxiv:2008.09464 v4 · 2020-08-21 · 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{T7MMK7CN7IXWITHACQXUAUPRFH}

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

2 papers in Pith

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	2026-07-05T03:46:18.414460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fd8c57c4dfa2f644ce0142f4051f129f938cf6ff4c9548557621af6e7d21d83

Aliases

arxiv: 2008.09464 · arxiv_version: 2008.09464v4 · doi: 10.48550/arxiv.2008.09464 · pith_short_12: T7MMK7CN7IXW · pith_short_16: T7MMK7CN7IXWITHA · pith_short_8: T7MMK7CN

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/T7MMK7CN7IXWITHACQXUAUPRFH \
  | 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: 9fd8c57c4dfa2f644ce0142f4051f129f938cf6ff4c9548557621af6e7d21d83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46b48c61fa4165e46b3504bc9e1673ad318c9ab063a5ba0fb028a551d57bf523",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-08-21T13:23:14Z",
    "title_canon_sha256": "67af62e64582e973c439b5b7419c774bc3f9b73176fa6bf2357edf5c3d8ba67c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.09464",
    "kind": "arxiv",
    "version": 4
  }
}