Pith Number

pith:G33ANPT3

pith:2004:G33ANPT3H26ZDYOPXG5353CICO

not attested not anchored not stored refs pending

Tiny HI Clouds in the Local ISM

(2) Kapteyn Inst.), Nissim Kanekar (2) ((1) ASTRON, Robert Braun (1)

arxiv:astro-ph/0409427 v1 · 2004-09-17 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G33ANPT3H26ZDYOPXG5353CICO}

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	2026-05-18T01:27:16.600834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36f606be7b3ebd91e1cfb9bbbeec481384849bf96291cd73b041d07661f3d358

Aliases

arxiv: astro-ph/0409427 · arxiv_version: astro-ph/0409427v1 · doi: 10.48550/arxiv.astro-ph/0409427 · pith_short_12: G33ANPT3H26Z · pith_short_16: G33ANPT3H26ZDYOP · pith_short_8: G33ANPT3

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/G33ANPT3H26ZDYOPXG5353CICO \
  | 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: 36f606be7b3ebd91e1cfb9bbbeec481384849bf96291cd73b041d07661f3d358

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f0c7484f70108296231e4d98045de3758612c469ed85a60963f2e76906a7154",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-17T13:57:39Z",
    "title_canon_sha256": "8200ac375482c9ed4af7370b6cf2ef5f002bedef9fed0d085b2625841256f07a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409427",
    "kind": "arxiv",
    "version": 1
  }
}