Pith Number

pith:5RB7CEWM

pith:2012:5RB7CEWMGRAMHN77BQSEGJKLJI

not attested not anchored not stored refs pending

Chandra observations of NGC4342, an optically faint, X-ray gas-rich early-type galaxy

(2) Swinburne University, (3) MPA, (4) University of Innsbruck), Akos Bogdan (1), Alexey Vikhlinin (1), Christina Blom (2), Christine Jones (1), Eugene Churazov (3), Irina Zhuravleva (3), Paul E. J. Nulsen (1), Ralph P. Kraft (1), Sabine Schindler (4) ((1) SAO, Scott W. Randall (1), William R. Forman (1), Zhiyuan Li (1), Zhongli Zhang (3)

arxiv:1203.1642 v2 · 2012-03-07 · astro-ph.HE · 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{5RB7CEWMGRAMHN77BQSEGJKLJI}

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	2026-05-18T01:58:13.356208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec43f112cc3440c3b7ff0c2443254b4a182aa706d94416a776085e41d24697af

Aliases

arxiv: 1203.1642 · arxiv_version: 1203.1642v2 · doi: 10.48550/arxiv.1203.1642 · pith_short_12: 5RB7CEWMGRAM · pith_short_16: 5RB7CEWMGRAMHN77 · pith_short_8: 5RB7CEWM

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/5RB7CEWMGRAMHN77BQSEGJKLJI \
  | 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: ec43f112cc3440c3b7ff0c2443254b4a182aa706d94416a776085e41d24697af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edd469677f5d3eec67f99960c0f7cd0ab6acedc5336f611a4c705fe7140f8c18",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-03-07T21:39:35Z",
    "title_canon_sha256": "60fa56a40c41a0cef1e0460cdb2c46b79cf42679152dfad39ffb943faffb75eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1642",
    "kind": "arxiv",
    "version": 2
  }
}