Pith Number

pith:RHC5KALJ

pith:2010:RHC5KALJXPZUBCXHRE3VIBFREL

not attested not anchored not stored refs pending

Further constraining galaxy evolution models through the Size Function of SDSS Early-type galaxies

2-U. Bologna, 3-UPENN, 4-U. Oklahoma, 5-MPE), Federico Marulli (2), Francesco Shankar (1), Mariangela Bernardi (3), Michael Boylan-Kolchin (1), Sadegh Khochfar (5) (1-MPA, Xinyu Dai (4)

arxiv:1002.3394 v1 · 2010-02-17 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RHC5KALJXPZUBCXHRE3VIBFREL}

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	2026-05-18T04:13:57.411570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89c5d50169bbf3408ae789375404b122dfb7cd6d3b00b851ba613a1d71c613cd

Aliases

arxiv: 1002.3394 · arxiv_version: 1002.3394v1 · doi: 10.48550/arxiv.1002.3394 · pith_short_12: RHC5KALJXPZU · pith_short_16: RHC5KALJXPZUBCXH · pith_short_8: RHC5KALJ

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/RHC5KALJXPZUBCXHRE3VIBFREL \
  | 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: 89c5d50169bbf3408ae789375404b122dfb7cd6d3b00b851ba613a1d71c613cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9673cdefeca28b04cde59d603ce481cd1e194c54b4f0d367952c18c525626e5c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-02-17T23:17:40Z",
    "title_canon_sha256": "880674409e5df9d20b5b634a87ec83c89b9670b42d0577df17b36aea4da7d53b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3394",
    "kind": "arxiv",
    "version": 1
  }
}