Pith Number

pith:D3SEH3QU

pith:2012:D3SEH3QUO6OGPXYCG224UHQGHS

not attested not anchored not stored refs pending

An inventory of the stellar initial mass function in early-type galaxies

Aaron J. Romanowsky, Crescenzo Tortora, Nicola R. Napolitano

arxiv:1207.4475 v2 · 2012-07-18 · 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{D3SEH3QUO6OGPXYCG224UHQGHS}

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	2026-05-18T01:56:16.674039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ee443ee14779c67df0236b5ca1e063ca9c74cdfc6581165bda7da46b601c11c

Aliases

arxiv: 1207.4475 · arxiv_version: 1207.4475v2 · doi: 10.48550/arxiv.1207.4475 · pith_short_12: D3SEH3QUO6OG · pith_short_16: D3SEH3QUO6OGPXYC · pith_short_8: D3SEH3QU

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/D3SEH3QUO6OGPXYCG224UHQGHS \
  | 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: 1ee443ee14779c67df0236b5ca1e063ca9c74cdfc6581165bda7da46b601c11c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "663ef0f0f09edf585a45dff6f067609858cb4f1b3fef9fde23f199b42a0cc185",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-18T20:00:00Z",
    "title_canon_sha256": "ed10f983e3ee410b13ee7b8c941ac382860ecc8516526c07daaeca579683833f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4475",
    "kind": "arxiv",
    "version": 2
  }
}