Pith Number

pith:G2A3OUVP

pith:2009:G2A3OUVPAOPNNXCAEX4TBZOJQM

not attested not anchored not stored refs pending

Disk formation during collapse of magnetized protostellar cores

A. Ciardi, P. Hennebelle

arxiv:0909.3190 v2 · 2009-09-17 · 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{G2A3OUVPAOPNNXCAEX4TBZOJQM}

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	2026-05-18T02:11:46.908782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3681b752af039ed6dc4025f930e5c98316cf7ebd6f220ff94a21e827914dbeb1

Aliases

arxiv: 0909.3190 · arxiv_version: 0909.3190v2 · doi: 10.48550/arxiv.0909.3190 · pith_short_12: G2A3OUVPAOPN · pith_short_16: G2A3OUVPAOPNNXCA · pith_short_8: G2A3OUVP

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/G2A3OUVPAOPNNXCAEX4TBZOJQM \
  | 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: 3681b752af039ed6dc4025f930e5c98316cf7ebd6f220ff94a21e827914dbeb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1300c71dfbfe91b04986b39de9b1ef6f334807e0c9a2d1e3b9caa63acf7255b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-09-17T11:25:40Z",
    "title_canon_sha256": "9c79239044ed20fa09735626ebbc022570feaa47715d6ec6e70da63b66b1bd06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3190",
    "kind": "arxiv",
    "version": 2
  }
}