Pith Number

pith:G3BLRTCA

pith:2025:G3BLRTCAEPRDIZV5LYE6IUT7QQ

not attested not anchored not stored refs pending

Drag modelling for flows through assemblies of spherical particles with machine learning: A comparison of approaches

Berend van Wachem, Hani Elmestikawy, Julia Reuter, Sanaz Mostaghim

arxiv:2507.05983 v1 · 2025-07-08 · physics.comp-ph · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G3BLRTCAEPRDIZV5LYE6IUT7QQ}

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	2026-07-05T11:33:39.473265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36c2b8cc4023e23466bd5e09e4527f8426074488f3a929feebceebca604c881d

Aliases

arxiv: 2507.05983 · arxiv_version: 2507.05983v1 · doi: 10.48550/arxiv.2507.05983 · pith_short_12: G3BLRTCAEPRD · pith_short_16: G3BLRTCAEPRDIZV5 · pith_short_8: G3BLRTCA

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/G3BLRTCAEPRDIZV5LYE6IUT7QQ \
  | 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: 36c2b8cc4023e23466bd5e09e4527f8426074488f3a929feebceebca604c881d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f19ca1cee4c771b8b479b13247164beb524ee9eb749f149f7b96b0dd4a0a090",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2025-07-08T13:40:16Z",
    "title_canon_sha256": "fbdbcc9982469c01b466ef3b266cfa73ae62db2f1feb512a0e7a150220ba56d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.05983",
    "kind": "arxiv",
    "version": 1
  }
}