Pith Number

pith:WSNLF2G3

pith:2004:WSNLF2G3RN23PGROWWPTGMMZDU

not attested not anchored not stored refs pending

A Wide-Field HI Study of the NGC 1566 Group

Baerbel S. Koribalski, David G. Barnes, Duncan A. Forbes, Ruth C. Musgrave, Virginia A. Kilborn

arxiv:astro-ph/0409743 v1 · 2004-09-30 · 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{WSNLF2G3RN23PGROWWPTGMMZDU}

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	2026-05-18T04:14:55.420648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b49ab2e8db8b75b79a2eb59f3331991d3177be60fe73723989c2a3121afea927

Aliases

arxiv: astro-ph/0409743 · arxiv_version: astro-ph/0409743v1 · doi: 10.48550/arxiv.astro-ph/0409743 · pith_short_12: WSNLF2G3RN23 · pith_short_16: WSNLF2G3RN23PGRO · pith_short_8: WSNLF2G3

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/WSNLF2G3RN23PGROWWPTGMMZDU \
  | 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: b49ab2e8db8b75b79a2eb59f3331991d3177be60fe73723989c2a3121afea927

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88d2cc918877b0563b1c7bb54f0307c48b27ea92a3048892d22ea27d7be87ad5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-30T04:58:33Z",
    "title_canon_sha256": "b9e87337eb1a1b03585f94a7b66ceb53a2ba36830efdb4917580575f4dc220d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409743",
    "kind": "arxiv",
    "version": 1
  }
}