Pith Number

pith:4TX4REFH

pith:2009:4TX4REFHORZ3FPH76J4WC6IQGZ

not attested not anchored not stored refs pending

Mass Segregation in NGC 2298: limits on the presence of an Intermediate Mass Black Hole

(2) U. Colorado, (3) ESA, (4) U. Maryland, (5) STScI), Douglas P. Hamilton (4), Guido De Marchi (3), Mario Pasquato (1), Massimo Stiavelli (5), M. Coleman Miller (4), Michael Gill (4), Michele Trenti (2), Roeland P. van der Marel (5) ((1) U. Pisa

arxiv:0904.3326 v1 · 2009-04-21 · 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{4TX4REFHORZ3FPH76J4WC6IQGZ}

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	2026-05-18T04:29:43.366349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4efc890a77473b2bcfff279617910364ebd6e224e655aea1cca084fab25dbbd

Aliases

arxiv: 0904.3326 · arxiv_version: 0904.3326v1 · doi: 10.48550/arxiv.0904.3326 · pith_short_12: 4TX4REFHORZ3 · pith_short_16: 4TX4REFHORZ3FPH7 · pith_short_8: 4TX4REFH

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/4TX4REFHORZ3FPH76J4WC6IQGZ \
  | 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: e4efc890a77473b2bcfff279617910364ebd6e224e655aea1cca084fab25dbbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bce45921329e9b7607fcfabf948ae977958120fbc09f92d01d59fa9bc06368f5",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-04-21T20:01:54Z",
    "title_canon_sha256": "f0db3c415100999815fdd522a50f675ee8a85c365bd63ce804c5ef23ee601078"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3326",
    "kind": "arxiv",
    "version": 1
  }
}