Pith Number

pith:22XAUCMJ

pith:2013:22XAUCMJH5YIB2ZD3NUKCVTP66

not attested not anchored not stored refs pending

Intermediate-Age Stellar Populations in Classical QSO Host Galaxies

Alan Stockton, Gabriela Canalizo

arxiv:1306.0268 v1 · 2013-06-03 · 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{22XAUCMJH5YIB2ZD3NUKCVTP66}

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	2026-05-18T01:49:38.742354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6ae0a09893f7080eb23db68a1566ff78532be490be095d58ba0f65ba9ecd215

Aliases

arxiv: 1306.0268 · arxiv_version: 1306.0268v1 · doi: 10.48550/arxiv.1306.0268 · pith_short_12: 22XAUCMJH5YI · pith_short_16: 22XAUCMJH5YIB2ZD · pith_short_8: 22XAUCMJ

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/22XAUCMJH5YIB2ZD3NUKCVTP66 \
  | 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: d6ae0a09893f7080eb23db68a1566ff78532be490be095d58ba0f65ba9ecd215

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9992303e6b2a9a0d15de66be0a9d545dccb6461189471267cae44c6586ea637",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-03T01:10:00Z",
    "title_canon_sha256": "0d2892d52e7f6fd998777ae9a7930a37c6cc0ca6423293a205a2cfe9d3cb1558"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0268",
    "kind": "arxiv",
    "version": 1
  }
}