Pith Number

pith:3EXOA4UD

pith:2009:3EXOA4UDRG722HAVZ6GLOJO6E6

not attested not anchored not stored refs pending

The initial mass function of early-type galaxies

A.S.Bolton (4) ((1) UCSB; (2) Kapteyn; (3) IAP; (4) Utah), L.V.E.Koopmans (2), M.W.Auger (1), P.J.Marshall (1), R.Gavazzi (3), T.Treu (1)

arxiv:0911.3392 v1 · 2009-11-17 · 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{3EXOA4UDRG722HAVZ6GLOJO6E6}

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	2026-05-18T02:34:04.847157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d92ee0728389bfad1c15cf8cb725de278f545e25a12f07faa5babb7315661e32

Aliases

arxiv: 0911.3392 · arxiv_version: 0911.3392v1 · doi: 10.48550/arxiv.0911.3392 · pith_short_12: 3EXOA4UDRG72 · pith_short_16: 3EXOA4UDRG722HAV · pith_short_8: 3EXOA4UD

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/3EXOA4UDRG722HAVZ6GLOJO6E6 \
  | 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: d92ee0728389bfad1c15cf8cb725de278f545e25a12f07faa5babb7315661e32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8adedec9630dacead71384ee5f3c9761c2970c5b2901dcf3b9b86290d1168443",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-17T21:00:03Z",
    "title_canon_sha256": "01dfe1cefc0ebb5b042a8adb667e4dbeab99b604599c009915669c7e15e0aabd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3392",
    "kind": "arxiv",
    "version": 1
  }
}