Pith Number

pith:ISO77MWW

pith:2010:ISO77MWWDDJ43LKRGAQGAZIOTM

not attested not anchored not stored refs pending

X-ray emission from the Sombrero galaxy: discrete sources

Christine Jones, Lee R. Spitler, Marat Gilfanov, Mikhail Revnivtsev, Q. Daniel Wang, Ralph P. Kraft, Rosanne Di Stefano, Shikui Tang, William R. Forman, Zhiyuan Li

arxiv:1008.2395 v1 · 2010-08-13 · 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{ISO77MWWDDJ43LKRGAQGAZIOTM}

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	2026-05-18T02:05:48.439279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

449dffb2d618d3cdad51302060650e9b302670ceb90fe28fee139f2f1a352671

Aliases

arxiv: 1008.2395 · arxiv_version: 1008.2395v1 · doi: 10.48550/arxiv.1008.2395 · pith_short_12: ISO77MWWDDJ4 · pith_short_16: ISO77MWWDDJ43LKR · pith_short_8: ISO77MWW

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/ISO77MWWDDJ43LKRGAQGAZIOTM \
  | 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: 449dffb2d618d3cdad51302060650e9b302670ceb90fe28fee139f2f1a352671

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b389755d74446306e23ca1b29d9c79efdb94828ab2614ffbeae6994a66ce4d3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-08-13T21:56:21Z",
    "title_canon_sha256": "c37893449ef4e671a16c343e33f8e8b5bb34a44eddd6fae50a32583d90bd3d64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2395",
    "kind": "arxiv",
    "version": 1
  }
}