Pith Number

pith:HLEITXXY

pith:2017:HLEITXXY2Q3MXNATV7EWLKWSZN

not attested not anchored not stored refs pending

Identification of the Hard X-ray Source Dominating the E > 25 keV Emission of the Nearby Galaxy M31

A. E. Hornschemeier, A. Lien, A. Ptak, A. Zezas, B. D. Lehmer, B. Williams, D. Wik, F. Baganoff, J. Kennea, K. L. Page, K. Pottschmidt, M. Yukita, P. T. Boyd, R. Ballhausen, T. Enoto, T. J. Maccarone, V. Antoniou, Y. Choi

arxiv:1703.07318 v1 · 2017-03-21 · astro-ph.GA · 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{HLEITXXY2Q3MXNATV7EWLKWSZN}

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	2026-05-18T00:47:45.352204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ac889def8d436cbb413afc965aad2cb52a6ded5949135a950710e68e44bee78

Aliases

arxiv: 1703.07318 · arxiv_version: 1703.07318v1 · doi: 10.48550/arxiv.1703.07318 · pith_short_12: HLEITXXY2Q3M · pith_short_16: HLEITXXY2Q3MXNAT · pith_short_8: HLEITXXY

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/HLEITXXY2Q3MXNATV7EWLKWSZN \
  | 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: 3ac889def8d436cbb413afc965aad2cb52a6ded5949135a950710e68e44bee78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "502f4ac4ff41468e34f8ee28796c160af4fc711d6f2771fcb2eb3d292d21d753",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-03-21T17:09:26Z",
    "title_canon_sha256": "5650574656e0ed0d28f8b3356c7d447023c40b49f831548d66cab89c3e427d1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07318",
    "kind": "arxiv",
    "version": 1
  }
}