Pith Number

pith:LHCQALK2

pith:2017:LHCQALK23PDTTHWYVZBOOJIAEA

not attested not anchored not stored refs pending

Swift monitoring of NGC 4151: Evidence for a Second X-ray/UV Reprocessing

A. Breeveld, A. J. Barth, A. V. Filippenko, B. M. Peterson, C. Done, D. A. Starkey, D. C. Leonard, D. Emmanoulopoulos, D. Grupe, E. Cackett, E. Dalla Bonta, E. Gardner, E. Romero-Colmenero, G. Ferland, G. Kriss, H. A. Krimm, H. A. Vogler, H. Netzer, H. Winkler, I. McHardy, J. Gelbord, J. Kennea, J. Nousek, K. Horne, K. Page, K. T. Korista, M. Bentz, M. Bottorff, M. Fausnaugh, M. Goad, M. Joner, M. Siegel, M. Vestergaard, N. Gehrels, P. Evans, R. Edelson, R. Figuera Jaimes, S. Connolly, S. Mathur, S. M. Crawford, S. Vaughan, T. Treu, W. N. Brandt, W. Zheng

arxiv:1703.06901 v2 · 2017-03-20 · 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{LHCQALK23PDTTHWYVZBOOJIAEA}

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	2026-05-18T00:44:51.364749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59c5002d5adbc7399ed8ae42e72500201674d3f0d656e4dd4b0519e75e98cadb

Aliases

arxiv: 1703.06901 · arxiv_version: 1703.06901v2 · doi: 10.48550/arxiv.1703.06901 · pith_short_12: LHCQALK23PDT · pith_short_16: LHCQALK23PDTTHWY · pith_short_8: LHCQALK2

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/LHCQALK23PDTTHWYVZBOOJIAEA \
  | 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: 59c5002d5adbc7399ed8ae42e72500201674d3f0d656e4dd4b0519e75e98cadb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "062cf12946513d94cea27362b1ec71ecdb09aec6e69a25ce8bbe64db57063e64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-03-20T18:11:10Z",
    "title_canon_sha256": "6d3a6e105c22c9078865645827564f636dcb9afe011921ef499e9f1c4966c4ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.06901",
    "kind": "arxiv",
    "version": 2
  }
}