Pith Number

pith:GOTXMBBZ

pith:2003:GOTXMBBZZHSWZQAYJXPSRX7HCF

not attested not anchored not stored refs pending

Soft X-Ray Sources at the Centers of the Elliptical Galaxies NGC 4472 and NGC 4649

A. Vikhlinin, D. Soldatenkov, M. Pavlinsky

arxiv:astro-ph/0306618 v1 · 2003-06-30 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GOTXMBBZZHSWZQAYJXPSRX7HCF}

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	2026-07-04T16:52:04.911382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33a7760439c9e56cc0184ddf28dfe7117e20ab31d79de258b41d3310d2796392

Aliases

arxiv: astro-ph/0306618 · arxiv_version: astro-ph/0306618v1 · doi: 10.48550/arxiv.astro-ph/0306618 · pith_short_12: GOTXMBBZZHSW · pith_short_16: GOTXMBBZZHSWZQAY · pith_short_8: GOTXMBBZ

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/GOTXMBBZZHSWZQAYJXPSRX7HCF \
  | 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: 33a7760439c9e56cc0184ddf28dfe7117e20ab31d79de258b41d3310d2796392

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c98629a9ebd1ae7923f77e4f4d44f5766131ed170fe6bd0e20f2c360421774ff",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-06-30T10:50:20Z",
    "title_canon_sha256": "54a0ac706df675028b231e19584da59e2e7e026a59bc6cb8646895713c68f096"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0306618",
    "kind": "arxiv",
    "version": 1
  }
}