Pith Number

pith:UH264HAD

pith:2009:UH264HADVWUDJPJNYFSI5IFJ56

not attested not anchored not stored refs pending

Ionized Gas Towards Molecular Clumps: Physical Properties of Massive Star Forming Regions

Debra S. Shepherd, Erik Rosolowsky, James E. Aguirre, Katharine G. Johnston, Kenneth Wood, Miranda K. Dunham

arxiv:0910.0251 v1 · 2009-10-01 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UH264HADVWUDJPJNYFSI5IFJ56}

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	2026-05-18T02:34:20.474043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1f5ee1c03ada834bd2dc1648ea0a9ef849e2307c44d92a2a25f0243feab7bdb

Aliases

arxiv: 0910.0251 · arxiv_version: 0910.0251v1 · doi: 10.48550/arxiv.0910.0251 · pith_short_12: UH264HADVWUD · pith_short_16: UH264HADVWUDJPJN · pith_short_8: UH264HAD

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/UH264HADVWUDJPJNYFSI5IFJ56 \
  | 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: a1f5ee1c03ada834bd2dc1648ea0a9ef849e2307c44d92a2a25f0243feab7bdb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f320c83bbe47c18a71c3c89be70cb82d4b56e62083a53d1809a2688685fe4b5",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-10-01T20:00:45Z",
    "title_canon_sha256": "ee1594204950c55084018ca4c882ef3975ed8cdf9a198ae0b92cc6214783d209"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0251",
    "kind": "arxiv",
    "version": 1
  }
}