Pith Number

pith:62VFZOJY

pith:2014:62VFZOJY3X7SAFOH4G22BONXAR

not attested not anchored not stored refs pending

A Hard X-Ray Power-Law Spectral Cutoff in Centaurus X-4

Brian W. Grefenstette (Caltech), Charles J. Hailey (Columbia), Daniel R. Wik (NASA/GSFC), Daniel Stern (JPL/Caltech), Deepto Chakrabarty (MIT), Didier Barret (IRAP/Toulouse), Dimitrios Psaltis (Arizona), Felix Fuerst (Caltech), Finn E. Christensen (DTU space), Fiona A. Harrison (Caltech), Joern Wilms (Erlangen-Nuremberg), John A. Tomsick (Berkeley), Jon M. Miller (Michigan), Matteo Bachetti (IRAP/Toulouse), Michael A. Nowak (MIT), Steven E. Boggs (Berkeley), Victoria A. Kaspi (McGill), Vikram Rana (Caltech), William W. Craig (LLNL/Berkeley), William W. Zhang (NASA/GSFC)

arxiv:1403.6751 v2 · 2014-03-26 · 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{62VFZOJY3X7SAFOH4G22BONXAR}

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	2026-05-18T01:43:50.727856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6aa5cb938ddff2015c7e1b5a0b9b704691d25650cf57d53dcea18e4a7be7981

Aliases

arxiv: 1403.6751 · arxiv_version: 1403.6751v2 · doi: 10.48550/arxiv.1403.6751 · pith_short_12: 62VFZOJY3X7S · pith_short_16: 62VFZOJY3X7SAFOH · pith_short_8: 62VFZOJY

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/62VFZOJY3X7SAFOH4G22BONXAR \
  | 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: f6aa5cb938ddff2015c7e1b5a0b9b704691d25650cf57d53dcea18e4a7be7981

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e29323d849a84e382cdcf139ac22a26052c195aecd254ef1fa1e444bc1cc8e50",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-03-26T17:06:26Z",
    "title_canon_sha256": "c326a4e21c106d5a53b0e3fb3d1223bad6d1d7f38966a342e3829c9c8cc9ae3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6751",
    "kind": "arxiv",
    "version": 2
  }
}