Pith Number

pith:RHXGNXCZ

pith:2004:RHXGNXCZGCSLE4DK5YAU2RV67J

not attested not anchored not stored refs pending

A Unified Picture of Disk Galaxies where Bars, Spirals and Warps Result from the Same Fundamental Causes

Daniel Pfenniger, University of Geneva), Yves Revaz (Geneva Observatory

arxiv:astro-ph/0406578 v1 · 2004-06-25 · 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{RHXGNXCZGCSLE4DK5YAU2RV67J}

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	2026-05-18T01:21:50.166707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89ee66dc5930a4b2706aee014d46befa4044e01754f7f901f2fa991a49c0a734

Aliases

arxiv: astro-ph/0406578 · arxiv_version: astro-ph/0406578v1 · doi: 10.48550/arxiv.astro-ph/0406578 · pith_short_12: RHXGNXCZGCSL · pith_short_16: RHXGNXCZGCSLE4DK · pith_short_8: RHXGNXCZ

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/RHXGNXCZGCSLE4DK5YAU2RV67J \
  | 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: 89ee66dc5930a4b2706aee014d46befa4044e01754f7f901f2fa991a49c0a734

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91d59dc2854f7d65aa64eb47ae3a021008221699312923b3f9ac5a3ee5fae5f0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-06-25T10:23:08Z",
    "title_canon_sha256": "a9cd8872855eccf14ce59721dad4628633a56ba9aab112d057bb4d39105220d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0406578",
    "kind": "arxiv",
    "version": 1
  }
}