Pith Number

pith:ABHFCHKH

pith:2021:ABHFCHKHPCVKVSCKUSW4KON6TU

not attested not anchored not stored refs pending

Upper Limit on the QCD Axion Mass from Isolated Neutron Star Cooling

Andrew J. Long, Benjamin R. Safdi, Christopher Dessert, Joshua W. Foster, Malte Buschmann

arxiv:2111.09892 v1 · 2021-11-18 · 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{ABHFCHKHPCVKVSCKUSW4KON6TU}

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

9 papers in Pith

Counting axions with IAXO

No Evidence for Superradiant Axions in LIGO-Virgo-KAGRA GWTC-5 Binary Black Hole Spins

Core Composition Effects on the QCD Axion Mass Limit from Neutron Star Cooling

Production of Leptophilic Bosons in Ultradegenerate Relativistic Matter

Neutron Star Bounds on Muonic Fifth Forces from Picometer to Kilometer Scales

Receipt and verification

First computed	2026-07-05T04:03:56.862070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

004e511d4778aaaac84aa4adc539be9d20ffb3b82baed00d73fe94b3b45fa807

Aliases

arxiv: 2111.09892 · arxiv_version: 2111.09892v1 · doi: 10.48550/arxiv.2111.09892 · pith_short_12: ABHFCHKHPCVK · pith_short_16: ABHFCHKHPCVKVSCK · pith_short_8: ABHFCHKH

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/ABHFCHKHPCVKVSCKUSW4KON6TU \
  | 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: 004e511d4778aaaac84aa4adc539be9d20ffb3b82baed00d73fe94b3b45fa807

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0edf926987bf7927bf6d571d498f9d886391ae3899c20aa4a2ecb7f57ecb8694",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2021-11-18T19:00:01Z",
    "title_canon_sha256": "624bb964b561f4c82717d9bc183e758b08191ac2c3a858eee575fe4a6200b35b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.09892",
    "kind": "arxiv",
    "version": 1
  }
}