Pith Number

pith:YWOQKB5W

pith:2009:YWOQKB5WHB6TL5F2E3YW3XJXIX

not attested not anchored not stored refs pending

Molecular Rings and the Thickness of Star-Forming Clouds

Christopher N. Beaumont, Jonathan P. Williams

arxiv:0912.1852 v1 · 2009-12-09 · 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{YWOQKB5WHB6TL5F2E3YW3XJXIX}

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	2026-05-18T02:33:57.033955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c59d0507b6387d35f4ba26f16ddd3745c85865e934f2da061b9e1dbf838d796c

Aliases

arxiv: 0912.1852 · arxiv_version: 0912.1852v1 · doi: 10.48550/arxiv.0912.1852 · pith_short_12: YWOQKB5WHB6T · pith_short_16: YWOQKB5WHB6TL5F2 · pith_short_8: YWOQKB5W

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/YWOQKB5WHB6TL5F2E3YW3XJXIX \
  | 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: c59d0507b6387d35f4ba26f16ddd3745c85865e934f2da061b9e1dbf838d796c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21c0e863332aaec333de904e66b7bf4e636f6cd17f27bee7f4dc78f786e2e543",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-12-09T21:00:06Z",
    "title_canon_sha256": "4d0bac881fa03635e0f449f969e26671a15ed45008f9cbf1ee9b510f23859fa2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1852",
    "kind": "arxiv",
    "version": 1
  }
}