Pith Number

pith:2FSKMEXE

pith:2014:2FSKMEXEU7LNUJRIAJAKTWWTHL

not attested not anchored not stored refs pending

Extended X-ray Emission From a Quasar-Driven Superbubble

Ai-Lei Sun, David Pooley, Jenny E. Greene, Julia M. Comerford, Nadia L. Zakamska

arxiv:1404.4875 v1 · 2014-04-18 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2FSKMEXEU7LNUJRIAJAKTWWTHL}

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	2026-05-18T01:43:27.348821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d164a612e4a7d6da26280240a9dad33ad2aca358348116a54524fc57e103fb68

Aliases

arxiv: 1404.4875 · arxiv_version: 1404.4875v1 · doi: 10.48550/arxiv.1404.4875 · pith_short_12: 2FSKMEXEU7LN · pith_short_16: 2FSKMEXEU7LNUJRI · pith_short_8: 2FSKMEXE

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/2FSKMEXEU7LNUJRIAJAKTWWTHL \
  | 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: d164a612e4a7d6da26280240a9dad33ad2aca358348116a54524fc57e103fb68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d6f614ca486ae6b9bd84cec7b9138b29119532092a5182012dec5da5a9b3371",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-04-18T20:00:13Z",
    "title_canon_sha256": "e7ce8174ffd780184a68e9f590fa3f5344b53fdfb551bf90c1da9ba76a2aa06b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4875",
    "kind": "arxiv",
    "version": 1
  }
}