Pith Number

pith:7D5KSMQL

pith:2009:7D5KSMQLZ6RMT7HCLLJWAAKVSD

not attested not anchored not stored refs pending

Suzaku Observation of the Metallicity Distribution in the Elliptical Galaxy NGC 4636

5) ((1)Department of Physical Science, Astronautical Science (ISAS), Hiroshima University (2)Department of Physics Tokyo University of Science (3)Institute of Space, Japan Aerospace Exploration Agency (JAXA) (4)CRESST, Katsuhiro Hayashi (1), Keith A. Arnaud (4, Kyoko Matsushita (2), Miyako Tozuka (1), NASA Goddard Flight Space Center (5)Astronomy Department, Sho Nishino (1), University of Maryland), X-ray Astrophysics Laboratory, Yasushi Fukazawa (1), Yoh Takei (3)

arxiv:0907.2283 v1 · 2009-07-14 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7D5KSMQLZ6RMT7HCLLJWAAKVSD}

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	2026-05-18T02:13:03.346424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8faa9320bcfa2c9fce25ad360015590ea5e7b81cdd16c66f9e56d4c8a7b0c33

Aliases

arxiv: 0907.2283 · arxiv_version: 0907.2283v1 · doi: 10.48550/arxiv.0907.2283 · pith_short_12: 7D5KSMQLZ6RM · pith_short_16: 7D5KSMQLZ6RMT7HC · pith_short_8: 7D5KSMQL

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/7D5KSMQLZ6RMT7HCLLJWAAKVSD \
  | 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: f8faa9320bcfa2c9fce25ad360015590ea5e7b81cdd16c66f9e56d4c8a7b0c33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f76b15d1686e86abb03a9ba4299ae3d7b719fd6c74ebda23904160c34ee4abb2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-14T03:38:50Z",
    "title_canon_sha256": "05484c1a7e77a62a2448f2f777add119c2cbdbdebe9d8325e6ff28f982bf48db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2283",
    "kind": "arxiv",
    "version": 1
  }
}