Pith Number

pith:XGIF5ZTK

pith:2010:XGIF5ZTKEYLIAKN2U3PMPWI3H5

not attested not anchored not stored refs pending

The Sudden Death of the Nearest Quasar

Anna Manning, Chris J. Lintott, C. Megan Urry, Daniel A. Evans, Gyula I. G. Jozsa, Hanny van Arkel, Kevin Schawinski, Lucy Fortson, Michael Garrett, Pamela Gay, Paolo Coppi, Priyamvada Natarajan, Shanil Virani, Steven P. Bamford, Sugata Kaviraj, William C. Keel

arxiv:1011.0427 v1 · 2010-11-01 · astro-ph.CO · 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{XGIF5ZTKEYLIAKN2U3PMPWI3H5}

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	2026-05-18T04:37:21.743676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9905ee66a26168029baa6dec7d91b3f454b66938aede8a53b9298d269f7bd78

Aliases

arxiv: 1011.0427 · arxiv_version: 1011.0427v1 · doi: 10.48550/arxiv.1011.0427 · pith_short_12: XGIF5ZTKEYLI · pith_short_16: XGIF5ZTKEYLIAKN2 · pith_short_8: XGIF5ZTK

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/XGIF5ZTKEYLIAKN2U3PMPWI3H5 \
  | 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: b9905ee66a26168029baa6dec7d91b3f454b66938aede8a53b9298d269f7bd78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60f298e81e975a8421163bb2bfdc34b49b762813420fbd0665dfddb2ca6017ab",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-11-01T20:00:02Z",
    "title_canon_sha256": "9720fad338ef4ae5aac16b96b96279183df23b30ad842e61577ec1a3d5809628"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.0427",
    "kind": "arxiv",
    "version": 1
  }
}