Pith Number

pith:PION4EXN

pith:2013:PION4EXNXA4ATQ4MPLHBU5BXRX

not attested not anchored not stored refs pending

NuSTAR discovery of a luminosity dependent cyclotron line energy in Vela X-1

(10), (11) U Michigan, (12) JPL, (13) NASA GSFC, (2) UMBC, 3), (3) CRESST, (4) Remeis-Observatory & ECAP, (5) SSL, (6) Universite de Toulouse, 7), (7) CNRS, (8) DTU Space, (9), 9), Ann Arbor, Baltimore, Bamberg, Berkeley, Brian W. Grefenstette (1), CA, Caltech, Charles J. Hailey (10), Columbia Astrophysics Lab, Daniel Stern (12), Denmark, Dominic Walton (1), Felix Fuerst (1), Finn E. Christensen (8), Fiona Harrison (1), France, Germany, Greenbelt, Joern Wilms (4), John A. Tomsick (5), Jon M. Miller (11), Katja Pottschmidt (2, Kristin K. Madsen (1), Livermore, LLNL, Lyngby, Matteo Bachetti (6, MD, MD), MI, NASA GSFC, New York, NY, Pasadena, Steven E. Boggs (5), Toulouse, UC Berkeley, William W. Craig (5, William Zhang (13) ((1) SRL

arxiv:1311.5514 v1 · 2013-11-21 · 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{PION4EXNXA4ATQ4MPLHBU5BXRX}

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	2026-05-18T01:46:07.205426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a1cde12edb83809c38c7ace1a74378dc02740b4d6bca71b7eefd23beab01a89

Aliases

arxiv: 1311.5514 · arxiv_version: 1311.5514v1 · doi: 10.48550/arxiv.1311.5514 · pith_short_12: PION4EXNXA4A · pith_short_16: PION4EXNXA4ATQ4M · pith_short_8: PION4EXN

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/PION4EXNXA4ATQ4MPLHBU5BXRX \
  | 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: 7a1cde12edb83809c38c7ace1a74378dc02740b4d6bca71b7eefd23beab01a89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc3361c49adebde5330111539b32dd9ed063c065359c965520bf07c5346cc22c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-11-21T18:51:51Z",
    "title_canon_sha256": "bb46430b90b35abed6cb2f8bd6397da6097b7c8a0ea6be4cf8a05c4c146adbe3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5514",
    "kind": "arxiv",
    "version": 1
  }
}