Pith Number

pith:XM7SO7WT

pith:2000:XM7SO7WTQ7SM32FM2DZAV6JJWS

not attested not anchored not stored refs pending

On the Timescale for the Formation of Protostellar Cores in Magnetic Interstellar Clouds

Glenn E. Ciolek (Rensselaer Polytechnic Inst.), Shantanu Basu (U. of Western Ontario)

arxiv:astro-ph/0009262 v1 · 2000-09-16 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XM7SO7WTQ7SM32FM2DZAV6JJWS}

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	2026-07-04T16:17:10.132162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb3f277ed387e4cde8acd0f20af929b49ca123c8ef1dc5cfce24f16438dfc619

Aliases

arxiv: astro-ph/0009262 · arxiv_version: astro-ph/0009262v1 · doi: 10.48550/arxiv.astro-ph/0009262 · pith_short_12: XM7SO7WTQ7SM · pith_short_16: XM7SO7WTQ7SM32FM · pith_short_8: XM7SO7WT

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/XM7SO7WTQ7SM32FM2DZAV6JJWS \
  | 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: bb3f277ed387e4cde8acd0f20af929b49ca123c8ef1dc5cfce24f16438dfc619

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5913e5855251e222f41923b34a8b7b5213a39eb36fb9063c7ed4747a2e337d59",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-09-16T21:04:19Z",
    "title_canon_sha256": "3e9302f14f6dd9e4b22ae818dec173afcbff3d36dea0c145cccd22f79da478b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0009262",
    "kind": "arxiv",
    "version": 1
  }
}