Pith Number

pith:25P2DU6H

pith:2010:25P2DU6HTSHBFD45UXSV6KAG23

not attested not anchored not stored refs pending

On the buildup of massive early-type galaxies at z<~1. I- Reconciling their hierarchical assembly with mass-downsizing

(2) Instituto de Astrofisica de Canarias (Spain), 3), (3) Universidad de La Laguna (Spain), 4), (4) Laboratoire d'Astrophysique de Marseille (France), 5), (5) Isaac Newton Group of Telescopes (Spain), (6) University of Florida (USA)), C. Lopez-Sanjuan (2, G. Barro (1), J. C. Munoz-Mateos (1) ((1) Universidad Complutense de Madrid (Spain), J. Gallego (1), J. Zamorano (1), M. Balcells (2, M. C. Eliche-Moral (1), M. Prieto (2, R. Guzman (6)

arxiv:1002.3537 v2 · 2010-02-18 · 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{25P2DU6HTSHBFD45UXSV6KAG23}

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	2026-05-18T02:08:59.556960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d75fa1d3c79c8e128f9da5e55f2806d6f926a60fc741b716aea5e1b9e9d8a272

Aliases

arxiv: 1002.3537 · arxiv_version: 1002.3537v2 · doi: 10.48550/arxiv.1002.3537 · pith_short_12: 25P2DU6HTSHB · pith_short_16: 25P2DU6HTSHBFD45 · pith_short_8: 25P2DU6H

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/25P2DU6HTSHBFD45UXSV6KAG23 \
  | 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: d75fa1d3c79c8e128f9da5e55f2806d6f926a60fc741b716aea5e1b9e9d8a272

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3f142825ef632f1987beea825cda961dabaf8a4af3487db861b9f9b94e22148",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-02-18T15:36:55Z",
    "title_canon_sha256": "b1603b1fce37c70edf8d491d351298ab4a10c165071286baee222c5d767f4862"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3537",
    "kind": "arxiv",
    "version": 2
  }
}