Pith Number

pith:N2LXOVJ2

pith:2001:N2LXOVJ2TEDO7VDHMCLQIU37XW

not attested not anchored not stored refs pending

Nested-grid calculations of disk-planet interaction

Gennaro D'Angelo, Thomas Henning & Wilhelm Kley

arxiv:astro-ph/0112429 v1 · 2001-12-18 · 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{N2LXOVJ2TEDO7VDHMCLQIU37XW}

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	2026-05-18T01:12:19.291559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e9777553a9906efd467609704537fbd8fca83a0ad06427c346283891801bce1

Aliases

arxiv: astro-ph/0112429 · arxiv_version: astro-ph/0112429v1 · doi: 10.48550/arxiv.astro-ph/0112429 · pith_short_12: N2LXOVJ2TEDO · pith_short_16: N2LXOVJ2TEDO7VDH · pith_short_8: N2LXOVJ2

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/N2LXOVJ2TEDO7VDHMCLQIU37XW \
  | 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: 6e9777553a9906efd467609704537fbd8fca83a0ad06427c346283891801bce1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6b838defac0033815c28f412f04729acb8bbddf02023c650e1fafd9bdb6853d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-18T17:15:02Z",
    "title_canon_sha256": "4ef6ddede7e313389a6c601d4c30cba137b92a1841047a3a0ce6480b09dd0b7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112429",
    "kind": "arxiv",
    "version": 1
  }
}