Pith Number

pith:R4O45J73

pith:1998:R4O45J73S7OJKZ4UXXTVKGNDWG

not attested not anchored not stored refs pending

The PDS starburst galaxies

C. A. O. Torres (LNA/CNPq), E. Davoust (Observatoire Midi-Pyrenees), G. R. Quast (LNA/CNPq), R. Coziol (ON), T. Contini (School of Physics & Astronomy, Tel Aviv Univ.)

arxiv:astro-ph/9807136 v1 · 1998-07-14 · 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{R4O45J73S7OJKZ4UXXTVKGNDWG}

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	2026-07-04T14:15:54.450513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f1dcea7fb97dc956794bde75519a3b1bdafa8231b933c4f9313ca5dc3e926a1

Aliases

arxiv: astro-ph/9807136 · arxiv_version: astro-ph/9807136v1 · doi: 10.48550/arxiv.astro-ph/9807136 · pith_short_12: R4O45J73S7OJ · pith_short_16: R4O45J73S7OJKZ4U · pith_short_8: R4O45J73

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/R4O45J73S7OJKZ4UXXTVKGNDWG \
  | 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: 8f1dcea7fb97dc956794bde75519a3b1bdafa8231b933c4f9313ca5dc3e926a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08d77f1bc472ad5d9a15b2d81019ebfb2595c768d54c28d42cc07fd8d6be4e65",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-07-14T12:42:43Z",
    "title_canon_sha256": "822700ed9566cd547e4a3f61114426d2ebbeeae29f8c21a20428c57f8e58fcfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9807136",
    "kind": "arxiv",
    "version": 1
  }
}