Pith Number

pith:QWLCX7LB

pith:2024:QWLCX7LBKGRLZJILIIQ6VVWBQX

not attested not anchored not stored refs pending

Critical grid method: An extensible Smoothed Particle Hydrodynamics fluid general interpolation method for Fluid-Structure Interaction surface coupling based on preCICE

Canqun Yang, Sifan Long, Xiaokang Fan, Xiaowei Guo

arxiv:2404.18390 v1 · 2024-04-29 · 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{QWLCX7LBKGRLZJILIIQ6VVWBQX}

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	2026-07-05T08:13:15.467573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85962bfd6151a2bca50b4221ead6c185fe96c6b3144ae8a1972db7fe1f36a5fc

Aliases

arxiv: 2404.18390 · arxiv_version: 2404.18390v1 · doi: 10.48550/arxiv.2404.18390 · pith_short_12: QWLCX7LBKGRL · pith_short_16: QWLCX7LBKGRLZJIL · pith_short_8: QWLCX7LB

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/QWLCX7LBKGRLZJILIIQ6VVWBQX \
  | 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: 85962bfd6151a2bca50b4221ead6c185fe96c6b3144ae8a1972db7fe1f36a5fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04bb10c81f8293cc543db4843e4948ee1639e40aef843abc42ccd6cd1d8e2e25",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-04-29T03:04:37Z",
    "title_canon_sha256": "94d3e631534be8e69c435a061783ab5114da923d5403282ba55717e42e138e2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.18390",
    "kind": "arxiv",
    "version": 1
  }
}