Pith Number

pith:N6C2IBN7

pith:2009:N6C2IBN7DOSSSUQNYBOLSDGSR6

not attested not anchored not stored refs pending

Particle Clumping and Planetesimal Formation Depend Strongly on Metallicity

(2) CITA, (3) AMNH), Anders Johansen (1), Andrew Youdin (2), Leiden University, Mordecai-Mark Mac Low (3) ((1) Leiden Observatory

arxiv:0909.0259 v2 · 2009-09-01 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N6C2IBN7DOSSSUQNYBOLSDGSR6}

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	2026-05-18T02:34:36.892625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f85a405bf1ba529520dc05cb90cd28fa91b0f3eaa4c00a03f9803ae68c280ce

Aliases

arxiv: 0909.0259 · arxiv_version: 0909.0259v2 · doi: 10.48550/arxiv.0909.0259 · pith_short_12: N6C2IBN7DOSS · pith_short_16: N6C2IBN7DOSSSUQN · pith_short_8: N6C2IBN7

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/N6C2IBN7DOSSSUQNYBOLSDGSR6 \
  | 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: 6f85a405bf1ba529520dc05cb90cd28fa91b0f3eaa4c00a03f9803ae68c280ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0b132b0a38476373db5cfc4f29c3fb00889645b2cc983759db4f5716ea84cf2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-09-01T20:07:54Z",
    "title_canon_sha256": "85a02d83757687d5f5a19e2bcace0ea647f88494202a009c1b93918476d067ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0259",
    "kind": "arxiv",
    "version": 2
  }
}