Pith Number

pith:FPRF4A3L

pith:1994:FPRF4A3LY42JOTZJGYOYDCMJPR

not attested not anchored not stored refs pending

General Relativistic Hydrodynamics with a Roe solver

Frits Eulderink, Garrelt Mellema

arxiv:astro-ph/9411056 v1 · 1994-11-15 · 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{FPRF4A3LY42JOTZJGYOYDCMJPR}

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

An approximate Riemann solver approach in Physics-Informed Neural Networks for hyperbolic conservation laws

Receipt and verification

First computed	2026-07-04T14:14:31.052379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2be25e036bc734974f29361d8189897c5b1ec003438660e18fb1a974c15c6a07

Aliases

arxiv: astro-ph/9411056 · arxiv_version: astro-ph/9411056v1 · doi: 10.48550/arxiv.astro-ph/9411056 · pith_short_12: FPRF4A3LY42J · pith_short_16: FPRF4A3LY42JOTZJ · pith_short_8: FPRF4A3L

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/FPRF4A3LY42JOTZJGYOYDCMJPR \
  | 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: 2be25e036bc734974f29361d8189897c5b1ec003438660e18fb1a974c15c6a07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74fc950bac414b2238471e48548d47faa11e10874d0f6637d217ebf8044c4dcc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-11-15T15:23:03Z",
    "title_canon_sha256": "16df51d8c8568b1edb217199779dc441c88b164fcc78f078bbbfec8e6d272e07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9411056",
    "kind": "arxiv",
    "version": 1
  }
}