Pith Number

pith:2KYRCFF7

pith:2011:2KYRCFF7GR3SUGSFJN4BNUPFOS

not attested not anchored not stored refs pending

A close look at the Centaurus A group of galaxies II. Intermediate-age populations in early-type dwarfs

(2) European Southern Observatory, (3) Research School of Astronomy & Astrophysics, Australia), Australian National University, D. Crnojevi\'c (1), E. K. Grebel (1), Garching, G. Da Costa (3), Germany, H. Jerjen (3) ((1) Astronomisches Rechen-Institut, Institute of Advanced Studies, M. Rejkuba (2), Zentrum fuer Astronomie der Universitaet Heidelberg

arxiv:1103.3706 v1 · 2011-03-18 · 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{2KYRCFF7GR3SUGSFJN4BNUPFOS}

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	2026-05-18T02:02:49.543935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2b11114bf34772a1a454b7816d1e5749eebf3ff2ca82b85382f56522f03d7e4

Aliases

arxiv: 1103.3706 · arxiv_version: 1103.3706v1 · doi: 10.48550/arxiv.1103.3706 · pith_short_12: 2KYRCFF7GR3S · pith_short_16: 2KYRCFF7GR3SUGSF · pith_short_8: 2KYRCFF7

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/2KYRCFF7GR3SUGSFJN4BNUPFOS \
  | 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: d2b11114bf34772a1a454b7816d1e5749eebf3ff2ca82b85382f56522f03d7e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd7d6a6fc7706d4594ec099e83994b1324bc06efd8d13cab563517ef7bd46e74",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-03-18T20:00:39Z",
    "title_canon_sha256": "b85318a0b0aa97105541e4b0fb0fc70997ef1783226acbcc9382021a89c8bb5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3706",
    "kind": "arxiv",
    "version": 1
  }
}