Pith Number

pith:YT3GWUWP

pith:1998:YT3GWUWPHL4AJXMUHMZKLTQ244

not attested not anchored not stored refs pending

3D Finite Volume Simulation of Accretion Discs with Spiral Shocks

Makoto Makita, Takuya Matsuda (Kobe University)

arxiv:astro-ph/9807237 v2 · 1998-07-23 · 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{YT3GWUWPHL4AJXMUHMZKLTQ244}

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	2026-05-18T01:21:56.446131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4f66b52cf3af804dd943b32a5ce1ae70db200d82f501f7e615e588e26a1495a

Aliases

arxiv: astro-ph/9807237 · arxiv_version: astro-ph/9807237v2 · doi: 10.48550/arxiv.astro-ph/9807237 · pith_short_12: YT3GWUWPHL4A · pith_short_16: YT3GWUWPHL4AJXMU · pith_short_8: YT3GWUWP

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/YT3GWUWPHL4AJXMUHMZKLTQ244 \
  | 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: c4f66b52cf3af804dd943b32a5ce1ae70db200d82f501f7e615e588e26a1495a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ccbb3ab2764fd3d1dafd56cc994376072c7026d2217ce489a3d255c98d495ec",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-07-23T08:58:31Z",
    "title_canon_sha256": "390885e3125a3e3a1d7fcd8eb8e4f05ddfcbf3f6f2b6c357a2272bff16aa33af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9807237",
    "kind": "arxiv",
    "version": 2
  }
}