Pith Number

pith:ONRQDTYC

pith:2009:ONRQDTYCMYMGP6XY5JIKEWCZJ5

not attested not anchored not stored refs pending

Stellar Ages and Metallicities of Central and Satellite Galaxies: Implications for Galaxy Formation and Evolution

Anna Gallazzi, Anna Pasquali, Fabio Fontanot, Frank C. van den Bosch, Gabriella De Lucia, H.J. Mo, Xiaohu Yang

arxiv:0912.1853 v1 · 2009-12-09 · 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{ONRQDTYCMYMGP6XY5JIKEWCZJ5}

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	2026-05-18T02:10:25.102850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

736301cf02661867faf8ea50a258594f6b631c6d4db3a80cc6cfab21409e4e5f

Aliases

arxiv: 0912.1853 · arxiv_version: 0912.1853v1 · doi: 10.48550/arxiv.0912.1853 · pith_short_12: ONRQDTYCMYMG · pith_short_16: ONRQDTYCMYMGP6XY · pith_short_8: ONRQDTYC

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/ONRQDTYCMYMGP6XY5JIKEWCZJ5 \
  | 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: 736301cf02661867faf8ea50a258594f6b631c6d4db3a80cc6cfab21409e4e5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f29dbbc9bc1b8ccb85b7296070d8aa89fa05247a5ebb519c557d2bdc88dc5040",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-09T21:00:08Z",
    "title_canon_sha256": "5a919397ddcd680f6f32c794de5de967bef4caeed6de7eefab1d18dd02476c02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1853",
    "kind": "arxiv",
    "version": 1
  }
}