Pith Number

pith:NYQLT2GL

pith:2026:NYQLT2GLWQDPUZMPQBPBHHSU3Q

not attested not anchored not stored refs pending

Nature of 4FGL J2249.4+6229: Evidence for a redback system with a cool companion and low X-ray and $\gamma$-ray luminosities

A. V. Karpova, D. A. Zyuzin, M. R. Gilfanov, S. V. Zharikov

arxiv:2605.22271 v1 · 2026-05-21 · 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{NYQLT2GLWQDPUZMPQBPBHHSU3Q}

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.

Receipt and verification

First computed	2026-05-22T01:04:35.447716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e20b9e8cbb406fa658f805e139e54dc085d9232d7d4755dfae63fa134d6217d

Aliases

arxiv: 2605.22271 · arxiv_version: 2605.22271v1 · doi: 10.48550/arxiv.2605.22271 · pith_short_12: NYQLT2GLWQDP · pith_short_16: NYQLT2GLWQDPUZMP · pith_short_8: NYQLT2GL

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/NYQLT2GLWQDPUZMPQBPBHHSU3Q \
  | 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: 6e20b9e8cbb406fa658f805e139e54dc085d9232d7d4755dfae63fa134d6217d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d7e349ebe3ff2d4a13322294ba4dec3be0c69c9cd508c9fa6484771b47f9da0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-05-21T10:14:46Z",
    "title_canon_sha256": "c1309d506e845eeb4bfc200826c274a5f3cf111ba141c4089419c3a530f2c788"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.22271",
    "kind": "arxiv",
    "version": 1
  }
}