Pith Number

pith:IXZCU5ZP

pith:1994:IXZCU5ZPSI7SJQYWI5WMZRJEEK

not attested not anchored not stored refs pending

The Damping and Excitation of Galactic Warps by Dynamical Friction

Robert W. Nelson, Scott Tremaine

arxiv:astro-ph/9408068 v1 · 1994-08-18 · 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{IXZCU5ZPSI7SJQYWI5WMZRJEEK}

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	2026-05-18T01:40:24.382898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45f22a772f923f24c316476cccc52422b50be0657f936f37a367fb8fad7eff99

Aliases

arxiv: astro-ph/9408068 · arxiv_version: astro-ph/9408068v1 · doi: 10.48550/arxiv.astro-ph/9408068 · pith_short_12: IXZCU5ZPSI7S · pith_short_16: IXZCU5ZPSI7SJQYW · pith_short_8: IXZCU5ZP

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/IXZCU5ZPSI7SJQYWI5WMZRJEEK \
  | 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: 45f22a772f923f24c316476cccc52422b50be0657f936f37a367fb8fad7eff99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1a01d8ab9b319badbebb217283a23f769933230f0e1d69e19367f204c6c170f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-08-18T21:08:01Z",
    "title_canon_sha256": "f54810ea8d5863f1500a118a908f656623868e55d5dd927c581adad0bccbbd56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9408068",
    "kind": "arxiv",
    "version": 1
  }
}