Pith Number

pith:HUGPLP7E

pith:2009:HUGPLP7EE4UYPXNUTQKH7IDEHM

not attested not anchored not stored refs pending

Distribution and characteristics of Infrared Dark Clouds using genetic forward modelling

A.P. Jones, D.J. Marshall, G. Joncas

arxiv:0908.3851 v1 · 2009-08-26 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HUGPLP7EE4UYPXNUTQKH7IDEHM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:12:22.631018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d0cf5bfe4272987ddb49c147fa0643b15e1266fd283a330a9a4aefb6179f7eb

Aliases

arxiv: 0908.3851 · arxiv_version: 0908.3851v1 · doi: 10.48550/arxiv.0908.3851 · pith_short_12: HUGPLP7EE4UY · pith_short_16: HUGPLP7EE4UYPXNU · pith_short_8: HUGPLP7E

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/HUGPLP7EE4UYPXNUTQKH7IDEHM \
  | 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: 3d0cf5bfe4272987ddb49c147fa0643b15e1266fd283a330a9a4aefb6179f7eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5b7b206a7759f16633267783e312a3d1cf3d60950cb8a3480d3da584e258876",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-08-26T15:26:30Z",
    "title_canon_sha256": "24cb324698d1e104322fc441f84095a3233342f65ff2d185be39ac9f88539d59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3851",
    "kind": "arxiv",
    "version": 1
  }
}