Pith Number

pith:R34U3XUE

pith:2008:R34U3XUEHCKITTR6LKUMRLPOFC

not attested not anchored not stored refs pending

Chandra Observations of Nuclear X-ray Emission from Low Surface Brightness Galaxies

C. S. Reynolds, M. Das, N. G. Kantharia, S. N. Vogel, S. S. McGaugh

arxiv:0812.0457 v1 · 2008-12-02 · 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{R34U3XUEHCKITTR6LKUMRLPOFC}

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	2026-05-18T04:29:24.773774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ef94dde84389489ce3e5aa8c8adee2898bce39e2a6b1f69b2fb7510d1f4079c

Aliases

arxiv: 0812.0457 · arxiv_version: 0812.0457v1 · doi: 10.48550/arxiv.0812.0457 · pith_short_12: R34U3XUEHCKI · pith_short_16: R34U3XUEHCKITTR6 · pith_short_8: R34U3XUE

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/R34U3XUEHCKITTR6LKUMRLPOFC \
  | 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: 8ef94dde84389489ce3e5aa8c8adee2898bce39e2a6b1f69b2fb7510d1f4079c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "736b6c2e702dcebdee90956995666398f1a89ebfc8edf981358a89576ba9fcce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-02T10:00:20Z",
    "title_canon_sha256": "0b622a387f2bc6bcecd31763ee03061509a1809a75add78df91f3be590d8d77d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.0457",
    "kind": "arxiv",
    "version": 1
  }
}