Pith Number

pith:ETI2V75I

pith:2001:ETI2V75IGQS6D3NMCCOLM2M3DX

not attested not anchored not stored refs pending

Clumpy outer Galaxy molecular clouds and the steepening of the IMF

A.L. Rudolph, E.J. de Geus, J. Brand, J.G.A. Wouterloot

arxiv:astro-ph/0107494 v1 · 2001-07-26 · 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{ETI2V75IGQS6D3NMCCOLM2M3DX}

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	2026-05-18T01:07:45.613557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24d1aaffa83425e1edac109cb6699b1ddd5b1a1966051df46dda75d588debd24

Aliases

arxiv: astro-ph/0107494 · arxiv_version: astro-ph/0107494v1 · doi: 10.48550/arxiv.astro-ph/0107494 · pith_short_12: ETI2V75IGQS6 · pith_short_16: ETI2V75IGQS6D3NM · pith_short_8: ETI2V75I

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/ETI2V75IGQS6D3NMCCOLM2M3DX \
  | 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: 24d1aaffa83425e1edac109cb6699b1ddd5b1a1966051df46dda75d588debd24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "499cb9df5756680994f12a8202412644b870b003f54813c95cc843a35b84dc69",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-07-26T00:37:49Z",
    "title_canon_sha256": "d708d43580f85e3ac948ffd6d3d330d1b33e86fe76e657f3ada7ccacdaa1f2b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0107494",
    "kind": "arxiv",
    "version": 1
  }
}