Pith Number

pith:X3U6YGEB

pith:2012:X3U6YGEBEXVYJPILHED2JQMDR7

not attested not anchored not stored refs pending

Universal IMF vs dark halo response in early-type galaxies: breaking the degeneracy with the fundamental plane

Aaron A. Dutton (MPIA, Andrea V. Maccio' (MPIA), J. Trevor Mendel (UVic), Luc Simard (HIA), UVic)

arxiv:1204.2825 v2 · 2012-04-12 · astro-ph.CO · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X3U6YGEBEXVYJPILHED2JQMDR7}

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	2026-05-18T01:57:52.994114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bee9ec188125eb84bd0b3907a4c1838fea367744e2bcf0c86dbb4e0a1644c6c4

Aliases

arxiv: 1204.2825 · arxiv_version: 1204.2825v2 · doi: 10.48550/arxiv.1204.2825 · pith_short_12: X3U6YGEBEXVY · pith_short_16: X3U6YGEBEXVYJPIL · pith_short_8: X3U6YGEB

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/X3U6YGEBEXVYJPILHED2JQMDR7 \
  | 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: bee9ec188125eb84bd0b3907a4c1838fea367744e2bcf0c86dbb4e0a1644c6c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9217bf000934195bdb3591c97d3353f1225963d977e1980cad73a33142dfff15",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-12T20:00:02Z",
    "title_canon_sha256": "a86acb91ff7836503e66a475017e014a2aa22017d4262033787596c3fc137c83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2825",
    "kind": "arxiv",
    "version": 2
  }
}