Pith Number

pith:4HR3YHL6

pith:1997:4HR3YHL6ITG6625FPIMEQVOVQF

not attested not anchored not stored refs pending

A High-resolution Adaptive Moving Mesh Hydrodynamic Algorithm

Ue-Li Pen

arxiv:astro-ph/9704258 v1 · 1997-04-26 · 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{4HR3YHL6ITG6625FPIMEQVOVQF}

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.

Cited by

1 paper in Pith

Fast(er)PM and Moving Mesh: JAX-native Geometric Multigrid Methods

Receipt and verification

First computed	2026-07-04T16:02:59.001298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1e3bc1d7e44cdef6ba57a184855d5814865aa98f4d472da52f53260de373ebd

Aliases

arxiv: astro-ph/9704258 · arxiv_version: astro-ph/9704258v1 · doi: 10.48550/arxiv.astro-ph/9704258 · pith_short_12: 4HR3YHL6ITG6 · pith_short_16: 4HR3YHL6ITG6625F · pith_short_8: 4HR3YHL6

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/4HR3YHL6ITG6625FPIMEQVOVQF \
  | 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: e1e3bc1d7e44cdef6ba57a184855d5814865aa98f4d472da52f53260de373ebd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d25892c7db11a21085524cb56a050746a547772a25a50173c0a348d2dbf9f06",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-04-26T01:59:32Z",
    "title_canon_sha256": "53503b1dbd9f4bcba983fa6a77655ca5f30be6be55ab682895445e12509355f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9704258",
    "kind": "arxiv",
    "version": 1
  }
}