Pith Number

pith:T67QFSQM

pith:2015:T67QFSQM5EZULEOGQ55CVUHVXJ

not attested not anchored not stored refs pending

A fictitious domain approach with distributed Lagrange multiplier for fluid-structure interactions

Daniele Boffi, Lucia Gastaldi

arxiv:1510.06856 v2 · 2015-10-23 · 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{T67QFSQM5EZULEOGQ55CVUHVXJ}

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	2026-05-18T00:45:26.240843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fbf02ca0ce9334591c6877a2ad0f5ba456d78c8d395611f0c1e65734462589b

Aliases

arxiv: 1510.06856 · arxiv_version: 1510.06856v2 · doi: 10.48550/arxiv.1510.06856 · pith_short_12: T67QFSQM5EZU · pith_short_16: T67QFSQM5EZULEOG · pith_short_8: T67QFSQM

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/T67QFSQM5EZULEOGQ55CVUHVXJ \
  | 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: 9fbf02ca0ce9334591c6877a2ad0f5ba456d78c8d395611f0c1e65734462589b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c1eee8a129e8fa2f67b281268e7ce59e2aa86e6b764ef09f45633b85a21d9a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-10-23T08:46:52Z",
    "title_canon_sha256": "6b8be9fe25a734ae911f15d72594d7843d5357a2d13f90100e9582b35d6aa927"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.06856",
    "kind": "arxiv",
    "version": 2
  }
}