Pith Number

pith:BFARTB7V

pith:2019:BFARTB7V3GM6SGCCINRDOF65ZE

not attested not anchored not stored refs pending

Numerical benchmarking of fluid-rigid body interactions

Christoph Lehrenfeld, Henry von Wahl, Jan Heiland, Piotr Minakowski, Thomas Richter

arxiv:1908.04637 v2 · 2019-08-13 · physics.comp-ph · cs.NA · math.NA · 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{BFARTB7V3GM6SGCCINRDOF65ZE}

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	2026-07-05T00:05:35.204330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09411987f5d999e9184243623717ddc9160215857bd660eb449cd5c4cc228340

Aliases

arxiv: 1908.04637 · arxiv_version: 1908.04637v2 · doi: 10.48550/arxiv.1908.04637 · pith_short_12: BFARTB7V3GM6 · pith_short_16: BFARTB7V3GM6SGCC · pith_short_8: BFARTB7V

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/BFARTB7V3GM6SGCCINRDOF65ZE \
  | 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: 09411987f5d999e9184243623717ddc9160215857bd660eb449cd5c4cc228340

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30843b6d2489fde8dc820970f45342b1e33d8c28e795a2623fcf8bec5f714b28",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2019-08-13T13:43:37Z",
    "title_canon_sha256": "decbab8e893de02f8a14abe799ca74c9825d89a8ce62990efcf4191751ae24fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04637",
    "kind": "arxiv",
    "version": 2
  }
}