Pith Number

pith:QWB65PDF

pith:2020:QWB65PDFQMT6BKVWNLNBWQUGJF

not attested not anchored not stored refs pending

A time-dependent FEM-BEM coupling method for fluid-structure interaction in 3d

Ceyhun Oezdemir, Ernst P. Stephan, Heiko Gimperlein

arxiv:2008.04299 v1 · 2020-08-10 · math.NA · cs.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QWB65PDFQMT6BKVWNLNBWQUGJF}

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	2026-07-05T01:26:24.092815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8583eebc658327e0aab66ada1b4286497aeea532b4fc693d1afb239583ae0865

Aliases

arxiv: 2008.04299 · arxiv_version: 2008.04299v1 · doi: 10.48550/arxiv.2008.04299 · pith_short_12: QWB65PDFQMT6 · pith_short_16: QWB65PDFQMT6BKVW · pith_short_8: QWB65PDF

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/QWB65PDFQMT6BKVWNLNBWQUGJF \
  | 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: 8583eebc658327e0aab66ada1b4286497aeea532b4fc693d1afb239583ae0865

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebb6c20f9a767d0ebcf58efb9a11c5e0127feea6f8bd7504086787d8633ea91e",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-08-10T17:48:58Z",
    "title_canon_sha256": "66499811c008a6b0e42d1b5f50506ffb407b499fec388c8daf7856ab759dd091"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.04299",
    "kind": "arxiv",
    "version": 1
  }
}