Pith Number

pith:DOIHTFSC

pith:2015:DOIHTFSCWGIXUPQGNWJQGNZO5W

not attested not anchored not stored refs pending

Hint at an axion-like particle from the redshift dependence of blazar spectra

Alessandro de Angelis, Giorgio Galanti, Giovanni F. Bignami, Marco Roncadelli

arxiv:1503.04436 v4 · 2015-03-15 · astro-ph.HE · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DOIHTFSCWGIXUPQGNWJQGNZO5W}

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

Line-of-sight magnetic-field propagation effects on axion-like particle constraints from GRB 221009A

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

Receipt and verification

First computed	2026-07-05T00:56:21.724676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b90799642b1917a3e066d9303372eed8596aa81b7a256edf3e7baa4593496d7

Aliases

arxiv: 1503.04436 · arxiv_version: 1503.04436v4 · doi: 10.48550/arxiv.1503.04436 · pith_short_12: DOIHTFSCWGIX · pith_short_16: DOIHTFSCWGIXUPQG · pith_short_8: DOIHTFSC

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/DOIHTFSCWGIXUPQGNWJQGNZO5W \
  | 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: 1b90799642b1917a3e066d9303372eed8596aa81b7a256edf3e7baa4593496d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b31f6368a1a20695a3f3fd35049b848b15ba0b63a34fcc9110431e17b6272f1",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-03-15T15:58:31Z",
    "title_canon_sha256": "bfcd6ae6823604c25e6dec0a4f1fe5b9a81b591b058a84dd852f8e9c3aa92049"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04436",
    "kind": "arxiv",
    "version": 4
  }
}