Pith Number

pith:SV2T7AIY

pith:2005:SV2T7AIYE2UC4TPZF745HMQZXX

not attested not anchored not stored refs pending

Spiral shocks, triggering of star formation and the velocity dispersion in Giant Molecular Clouds

C. L. Dobbs, I. A. Bonnell, J. E. Pringle, T. R. Robitaille

arxiv:astro-ph/0509809 v1 · 2005-09-27 · 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{SV2T7AIYE2UC4TPZF745HMQZXX}

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	2026-05-18T01:40:33.360934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95753f811826a82e4df92ff9d3b219bdf9105c9484e6ea02fe076a949e853ecb

Aliases

arxiv: astro-ph/0509809 · arxiv_version: astro-ph/0509809v1 · doi: 10.48550/arxiv.astro-ph/0509809 · pith_short_12: SV2T7AIYE2UC · pith_short_16: SV2T7AIYE2UC4TPZ · pith_short_8: SV2T7AIY

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/SV2T7AIYE2UC4TPZF745HMQZXX \
  | 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: 95753f811826a82e4df92ff9d3b219bdf9105c9484e6ea02fe076a949e853ecb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28703209b1c5ca038ebeef1cd4bca8004a269134b433c2079116fc7e8b2acede",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-27T14:44:23Z",
    "title_canon_sha256": "6e999a135ec72930cd65dce97e446c1c6f3a14b8f598b75208c6bd3c3df1cfdf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509809",
    "kind": "arxiv",
    "version": 1
  }
}