Pith Number

pith:2L7YNZ2X

pith:2005:2L7YNZ2XLXQVEASP2HAEXSZC3M

not attested not anchored not stored refs pending

Star Formation in Isolated Disk Galaxies. II. Schmidt Laws and Efficiency of Gravitational Collapse

Mordecai-Mark Mac Low, & Ralf S. Klessen, Yuexing Li

arxiv:astro-ph/0508054 v2 · 2005-08-01 · 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{2L7YNZ2XLXQVEASP2HAEXSZC3M}

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	2026-05-18T04:36:29.795377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2ff86e7575de152024fd1c04bcb22db33a77cf20855b482da447934772ad888

Aliases

arxiv: astro-ph/0508054 · arxiv_version: astro-ph/0508054v2 · doi: 10.48550/arxiv.astro-ph/0508054 · pith_short_12: 2L7YNZ2XLXQV · pith_short_16: 2L7YNZ2XLXQVEASP · pith_short_8: 2L7YNZ2X

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/2L7YNZ2XLXQVEASP2HAEXSZC3M \
  | 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: d2ff86e7575de152024fd1c04bcb22db33a77cf20855b482da447934772ad888

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8ba462fde508666f57d0c36009e16301482128b29b55c91c0b5feb02555643b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-08-01T21:34:53Z",
    "title_canon_sha256": "3040bb79c57ae0e19cd725129f0e6da395969302599329f70ba60fa524720676"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0508054",
    "kind": "arxiv",
    "version": 2
  }
}