Pith Number

pith:OGVSCOVS

pith:2003:OGVSCOVSGHPSGBD6ARHSI6GNQB

not attested not anchored not stored refs pending

Star formation in gaseous galaxy halos: VLT-spectroscopy of extraplanar HII-regions in NGC55

A. M. N. Ferguson, D. J. Bomans, M. R. Rosa, R.-J. Dettmar, R. Tuellmann, T. Elwert

arxiv:astro-ph/0309786 v1 · 2003-09-29 · 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{OGVSCOVSGHPSGBD6ARHSI6GNQB}

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	2026-07-04T16:51:46.584136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71ab213ab231df23047e044f2478cd8066c8b47d1c65ceb35b375fbb122c090a

Aliases

arxiv: astro-ph/0309786 · arxiv_version: astro-ph/0309786v1 · doi: 10.48550/arxiv.astro-ph/0309786 · pith_short_12: OGVSCOVSGHPS · pith_short_16: OGVSCOVSGHPSGBD6 · pith_short_8: OGVSCOVS

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/OGVSCOVSGHPSGBD6ARHSI6GNQB \
  | 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: 71ab213ab231df23047e044f2478cd8066c8b47d1c65ceb35b375fbb122c090a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cff39c8bc7b7cd889b2ac16ae2499f539219f78f94b4ee0737edafb5f6a16ff0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-29T15:51:23Z",
    "title_canon_sha256": "5f7668d62902cd207974b1871ec457b96ca98115b3095a9efbf654bc693240c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309786",
    "kind": "arxiv",
    "version": 1
  }
}