Pith Number

pith:FQHONXA3

pith:2002:FQHONXA3JE7CC7RI2SIBX3JEVK

not attested not anchored not stored refs pending

The Peculiar Nebula Simeis 57: I. Ionized Gas and Dust Extinction

Boulder, Canada), F.P. Israel, J. Bally (Univ. of Colorado, M. Kloppenburg (Sterrewacht Leiden, P.E. Dewdney (DRAO, Penticton, the Netherlands), USA)

arxiv:astro-ph/0211428 v1 · 2002-11-19 · 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{FQHONXA3JE7CC7RI2SIBX3JEVK}

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	2026-05-18T02:40:27.276198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c0ee6dc1b493e217e28d4901bed24aa95c89c92db2906a4aa22442e5e1d9986

Aliases

arxiv: astro-ph/0211428 · arxiv_version: astro-ph/0211428v1 · doi: 10.48550/arxiv.astro-ph/0211428 · pith_short_12: FQHONXA3JE7C · pith_short_16: FQHONXA3JE7CC7RI · pith_short_8: FQHONXA3

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/FQHONXA3JE7CC7RI2SIBX3JEVK \
  | 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: 2c0ee6dc1b493e217e28d4901bed24aa95c89c92db2906a4aa22442e5e1d9986

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1cfc178f623fa501f82eb3799c680417da2594a25316fa1de528a23765085913",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-11-19T15:39:09Z",
    "title_canon_sha256": "7f72ed8e56db55b97f2b60dd881c3993147aa1bf45864837810c2db86acb337c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0211428",
    "kind": "arxiv",
    "version": 1
  }
}