Pith Number

pith:OMLOQ4AK

pith:2017:OMLOQ4AKER2YS767F4KF2FH6ZC

not attested not anchored not stored refs pending

A distributed Lagrange formulation of the Finite Element Immersed Boundary Method for fluids interacting with compressible solids

Daniele Boffi, Luca Heltai, Lucia Gastaldi

arxiv:1712.02545 v1 · 2017-12-07 · math.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{OMLOQ4AKER2YS767F4KF2FH6ZC}

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	2026-05-18T00:28:33.667202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7316e8700a2475897fdf2f145d14fec89de2b38841faa944e64bd5e915e9c9c9

Aliases

arxiv: 1712.02545 · arxiv_version: 1712.02545v1 · doi: 10.48550/arxiv.1712.02545 · pith_short_12: OMLOQ4AKER2Y · pith_short_16: OMLOQ4AKER2YS767 · pith_short_8: OMLOQ4AK

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/OMLOQ4AKER2YS767F4KF2FH6ZC \
  | 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: 7316e8700a2475897fdf2f145d14fec89de2b38841faa944e64bd5e915e9c9c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "021e7d30e8a6ae6a016c985a54d0e2f83e8e860479385b25775d7555fac09355",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-12-07T09:19:10Z",
    "title_canon_sha256": "c0ce59cf562db24aa5f74a51d22bd8fd18d93880d7918290c690fa4dfef26f74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.02545",
    "kind": "arxiv",
    "version": 1
  }
}