Pith Number

pith:LLRYP4RN

pith:2025:LLRYP4RNQZYT2R47W5UJ3U6LL6

not attested not anchored not stored refs pending

Proper Orthogonal Decomposition-based Model-Order Reduction for Smoothed Particle Hydrodynamics Simulation -- Mass-Spring-Damper System

Huaxiong Huang, Kirk Fraser, Lidong Fang, Zilong Song

arxiv:2508.00335 v1 · 2025-08-01 · physics.comp-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{LLRYP4RNQZYT2R47W5UJ3U6LL6}

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	2026-07-05T11:46:53.735958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ae387f22d86713d479fb7689dd3cb5f9fad7e92424310009465e8d1371048b2

Aliases

arxiv: 2508.00335 · arxiv_version: 2508.00335v1 · doi: 10.48550/arxiv.2508.00335 · pith_short_12: LLRYP4RNQZYT · pith_short_16: LLRYP4RNQZYT2R47 · pith_short_8: LLRYP4RN

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/LLRYP4RNQZYT2R47W5UJ3U6LL6 \
  | 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: 5ae387f22d86713d479fb7689dd3cb5f9fad7e92424310009465e8d1371048b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4f65eff3fb68c31b6f7073f479916254b402f52d679b79047a987b7b713d0e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2025-08-01T05:52:44Z",
    "title_canon_sha256": "7cfc8e10b46b6e23ac0aa89b9125a96648ee3bd27629586f6fd684c6bbe6a738"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.00335",
    "kind": "arxiv",
    "version": 1
  }
}