Pith Number

pith:VCUZIDBA

pith:2011:VCUZIDBA2GHLJGZVDFHYQRGME4

not attested not anchored not stored refs pending

The relative abundance of compact and normal massive early-type galaxies and its evolution from redshift z~2 to the present

(2) Osservatorio Astronomico di Padova (INAF-OAPD), (3) Space Telescope Science Institute, (4) School of Physics, (5) University of Nottingham, (6) NOAO-Tucson, (7) Institute of Astronomy & Astrophysics, Academia Sinica, Amherst, A. M. Koekemoer (3), A. Renzini (2), Astronomy, Baltimore, C. J. Conselice (5), C. Scarlata (4), H. Ferguson (3), J. M. Lotz (3), Lihwai Lin (7) ((1) Department of Astronomy, M. Dickinson (6), M. Giavalisco (1), Minneapolis, N. A. Grogin (3), Nottingham, Padova, P. Cassata (1), School of Physics, S. Salimbeni (1), Taipei), T. Dahlen (3), Tucson, University of Massachusetts, University of Minnesota, Vicolo dell'Osservatorio 5, Yicheng Guo (1)

arxiv:1106.4308 v2 · 2011-06-21 · 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{VCUZIDBA2GHLJGZVDFHYQRGME4}

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	2026-05-18T02:01:32.265785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8a9940c20d18eb49b35194f8844cc270ec9e61ea7dd05e7fbcfcdad67724dcc

Aliases

arxiv: 1106.4308 · arxiv_version: 1106.4308v2 · doi: 10.48550/arxiv.1106.4308 · pith_short_12: VCUZIDBA2GHL · pith_short_16: VCUZIDBA2GHLJGZV · pith_short_8: VCUZIDBA

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/VCUZIDBA2GHLJGZVDFHYQRGME4 \
  | 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: a8a9940c20d18eb49b35194f8844cc270ec9e61ea7dd05e7fbcfcdad67724dcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bc7ffe7d301c7fdcc51a5ab7531488123cc3f29b77178f137d95461936f6909",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-06-21T20:00:03Z",
    "title_canon_sha256": "663d608023baffb32cb70918b95f4c04be5621b2d8f3ffdc3d867e4f292a40bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.4308",
    "kind": "arxiv",
    "version": 2
  }
}