Pith Number

pith:MUQQLS4Q

pith:1998:MUQQLS4QWCQISNKO7MMPYIXNNL

not attested not anchored not stored refs pending

New catalogue of Wolf-Rayet galaxies and high-excitation extra-galactic HII regions

Daniel Schaerer (OMP, Maximilien Pindao (Geneva Obs.), Tel Aviv Univ.; ESO), Thierry Contini (School of Physics & Astronomy, Toulouse)

arxiv:astro-ph/9812347 v2 · 1998-12-18 · 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{MUQQLS4QWCQISNKO7MMPYIXNNL}

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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	2026-07-04T16:07:23.096063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

652105cb90b0a089354efb18fc22ed6afb7f40dce6d50c7be746f463de6c885d

Aliases

arxiv: astro-ph/9812347 · arxiv_version: astro-ph/9812347v2 · doi: 10.48550/arxiv.astro-ph/9812347 · pith_short_12: MUQQLS4QWCQI · pith_short_16: MUQQLS4QWCQISNKO · pith_short_8: MUQQLS4Q

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/MUQQLS4QWCQISNKO7MMPYIXNNL \
  | 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: 652105cb90b0a089354efb18fc22ed6afb7f40dce6d50c7be746f463de6c885d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "047de31971c4d0539f64c04d9742320ef3dceef0452012eb8ae4e8603546b432",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-12-18T11:19:13Z",
    "title_canon_sha256": "9fe51834685f288774232eff5243ad0f7f36960c596713767438848198f2e84b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9812347",
    "kind": "arxiv",
    "version": 2
  }
}