Pith Number

pith:F5AUQPQ6

pith:2018:F5AUQPQ6MZLPMIOENZDAXMJHA4

not attested not anchored not stored refs pending

Mathematics of Smoothed Particle Hydrodynamics: a Study via Nonlocal Stokes Equations

Qiang Du, Xiaochuan Tian

arxiv:1805.08261 v2 · 2018-05-21 · math.NA · cs.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F5AUQPQ6MZLPMIOENZDAXMJHA4}

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	2026-05-17T23:41:37.120197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f41483e1e6656f621c46e460bb1270705d4b6fc28104064e656eb1d70650e88

Aliases

arxiv: 1805.08261 · arxiv_version: 1805.08261v2 · doi: 10.48550/arxiv.1805.08261 · pith_short_12: F5AUQPQ6MZLP · pith_short_16: F5AUQPQ6MZLPMIOE · pith_short_8: F5AUQPQ6

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/F5AUQPQ6MZLPMIOENZDAXMJHA4 \
  | 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: 2f41483e1e6656f621c46e460bb1270705d4b6fc28104064e656eb1d70650e88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a97080119870691b7b87d104ec595304e5c6873918905db8b173f508edf9c89",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-05-21T19:12:57Z",
    "title_canon_sha256": "01d3c8c25128e72e242e173a19672477691865774d244b05d6a19be00b330c34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08261",
    "kind": "arxiv",
    "version": 2
  }
}