Pith Number

pith:BE7EJRBC

pith:2004:BE7EJRBCA2YAGJGDRHT6DCWWUP

not attested not anchored not stored refs pending

The Nuclei of Late-type Spiral Galaxies

C.-J. Walcher, E. Schinnerer, H.-W. Rix, J. C. Shields, L. C. Ho, M. Sarzi, N. Haering, R. P. van der Marel, S. Laine, T. Boeker, U. Lisenfeld

arxiv:astro-ph/0403067 v1 · 2004-03-02 · 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{BE7EJRBCA2YAGJGDRHT6DCWWUP}

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	2026-07-04T14:13:22.168379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

093e44c42206b00324c389e7e18ad6a3fda442b814d381685c4692d3f6a5ba12

Aliases

arxiv: astro-ph/0403067 · arxiv_version: astro-ph/0403067v1 · doi: 10.48550/arxiv.astro-ph/0403067 · pith_short_12: BE7EJRBCA2YA · pith_short_16: BE7EJRBCA2YAGJGD · pith_short_8: BE7EJRBC

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/BE7EJRBCA2YAGJGDRHT6DCWWUP \
  | 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: 093e44c42206b00324c389e7e18ad6a3fda442b814d381685c4692d3f6a5ba12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0378ed7f680a985218aca42c00d32bab0fb42f2ef4afd2f0108bfdd2a7653ee",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-03-02T16:33:14Z",
    "title_canon_sha256": "d86271b3b14bf2552dd94a9ac2c0ac671443ed77eec389dc72745530a78fbae7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0403067",
    "kind": "arxiv",
    "version": 1
  }
}