Pith Number

pith:UKYJSVDU

pith:2012:UKYJSVDUDYDHJMFKPHK37OM7TE

not attested not anchored not stored refs pending

The Dark Halo - Spheroid Conspiracy and the Origin of Elliptical Galaxies

Andreas Burkert, Jens Thomas, Klaus Dolag, Ludwig Oser, Peter H. Johansson, Rhea-Silvia Remus, Thorsten Naab

arxiv:1211.3420 v2 · 2012-11-14 · 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{UKYJSVDUDYDHJMFKPHK37OM7TE}

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	2026-05-18T01:53:11.127095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2b09954741e0674b0aa79d5bfb99f9914c036db185020d150a56f1d64d230fd

Aliases

arxiv: 1211.3420 · arxiv_version: 1211.3420v2 · doi: 10.48550/arxiv.1211.3420 · pith_short_12: UKYJSVDUDYDH · pith_short_16: UKYJSVDUDYDHJMFK · pith_short_8: UKYJSVDU

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/UKYJSVDUDYDHJMFKPHK37OM7TE \
  | 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: a2b09954741e0674b0aa79d5bfb99f9914c036db185020d150a56f1d64d230fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21889a802912c3e650072c054b726bc9471f009bb7899665819d0d1e67b02851",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-11-14T21:00:03Z",
    "title_canon_sha256": "c1d747b9711bb16aa5090b0f074c7034c61b9fcfa119c03db65cbd70a54c2f5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3420",
    "kind": "arxiv",
    "version": 2
  }
}