Pith Number

pith:OOLZ6Y2M

pith:2018:OOLZ6Y2MU4XXBN25D25MZ2YFIA

not attested not anchored not stored refs pending

A whirling plane of satellite galaxies around Centaurus A challenges cold dark matter cosmology

Federico Lelli, Helmut Jerjen, Marcel S. Pawlowski, Oliver M\"uller

arxiv:1802.00081 v1 · 2018-01-31 · astro-ph.GA · 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{OOLZ6Y2MU4XXBN25D25MZ2YFIA}

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	2026-05-18T00:24:36.860438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73979f634ca72f70b75d1ebacceb05401da8f4ee62e1832ca5c2dc28a72a7916

Aliases

arxiv: 1802.00081 · arxiv_version: 1802.00081v1 · doi: 10.48550/arxiv.1802.00081 · pith_short_12: OOLZ6Y2MU4XX · pith_short_16: OOLZ6Y2MU4XXBN25 · pith_short_8: OOLZ6Y2M

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/OOLZ6Y2MU4XXBN25D25MZ2YFIA \
  | 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: 73979f634ca72f70b75d1ebacceb05401da8f4ee62e1832ca5c2dc28a72a7916

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9043b617065648593c9e322e18ba0d8d7422bb320ecc745ae69ef4c3e628b643",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-01-31T22:00:25Z",
    "title_canon_sha256": "570f0716c3a7b18947907a230c0e212a00c17e310378820acb2ad2940d9bd10c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00081",
    "kind": "arxiv",
    "version": 1
  }
}