Pith Number

pith:XGR3SFVL

pith:2021:XGR3SFVLYRUQUWJM4TKVUFFAQR

not attested not anchored not stored refs pending

Probing ultra-light axions with the 21-cm Signal during Cosmic Dawn

David J. E. Marsh, Marc Kamionkowski, Selim C. Hotinli

arxiv:2112.06943 v2 · 2021-12-13 · astro-ph.CO · 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{XGR3SFVLYRUQUWJM4TKVUFFAQR}

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

Tracing the Neutrino-Induced Phase Shift in the 21-cm Spectrum

Receipt and verification

First computed	2026-07-05T04:54:17.432997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9a3b916abc4690a592ce4d55a14a08457189671ea62c09accd0aa4b86597be5

Aliases

arxiv: 2112.06943 · arxiv_version: 2112.06943v2 · doi: 10.48550/arxiv.2112.06943 · pith_short_12: XGR3SFVLYRUQ · pith_short_16: XGR3SFVLYRUQUWJM · pith_short_8: XGR3SFVL

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/XGR3SFVLYRUQUWJM4TKVUFFAQR \
  | 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: b9a3b916abc4690a592ce4d55a14a08457189671ea62c09accd0aa4b86597be5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4138c4690fb532f56c848d5c269e05d232de28b286b04e631e9acf4b8623da92",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-12-13T19:00:02Z",
    "title_canon_sha256": "6690583ca647542a21d196e17c641b3bff43f6ee94e2f0f659895a39839a4320"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.06943",
    "kind": "arxiv",
    "version": 2
  }
}