Pith Number

pith:MSN45TDN

pith:1998:MSN45TDNZVCGOPUSVB6BMMTEJ4

not attested not anchored not stored refs pending

Disk Formation In Hierarchical Hydrodynamical Simulations: A Way Out Of The Angular Momentum Catastrophe

A. Saiz, P.B. Tissera, R. Dominguez-Tenreiro

arxiv:astro-ph/9809312 v1 · 1998-09-24 · 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{MSN45TDNZVCGOPUSVB6BMMTEJ4}

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	2026-07-04T16:07:03.061836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

649bcecc6dcd44673e92a87c1632644f34c57ff13aae7d748115d9ba9bd02fd3

Aliases

arxiv: astro-ph/9809312 · arxiv_version: astro-ph/9809312v1 · doi: 10.48550/arxiv.astro-ph/9809312 · pith_short_12: MSN45TDNZVCG · pith_short_16: MSN45TDNZVCGOPUS · pith_short_8: MSN45TDN

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/MSN45TDNZVCGOPUSVB6BMMTEJ4 \
  | 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: 649bcecc6dcd44673e92a87c1632644f34c57ff13aae7d748115d9ba9bd02fd3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "303f64c124e66868a2a1fbb3f3fe16fcbc9ca499d1a2b00c26f6369f9e931e2f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-09-24T15:14:01Z",
    "title_canon_sha256": "a01e5d7b6aa30eaf17eaf271a0b87a89a43d9069a886f5e504f9ceb0d323a175"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9809312",
    "kind": "arxiv",
    "version": 1
  }
}