Pith Number

pith:NGSGQIZU

pith:2016:NGSGQIZU6SWRZEK2WGXYGE2BQI

not attested not anchored not stored refs pending

Higher order unfitted FEM for Stokes interface problems

Carl-Martin Pfeiler, Christoph Lehrenfeld, Christoph Wintersteiger, Philip Lederer

arxiv:1605.04085 v1 · 2016-05-13 · 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{NGSGQIZU6SWRZEK2WGXYGE2BQI}

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	2026-05-18T01:14:54.387268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69a4682334f4ad1c915ab1af831341822abf41659f516524ce699f64962930ae

Aliases

arxiv: 1605.04085 · arxiv_version: 1605.04085v1 · doi: 10.48550/arxiv.1605.04085 · pith_short_12: NGSGQIZU6SWR · pith_short_16: NGSGQIZU6SWRZEK2 · pith_short_8: NGSGQIZU

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/NGSGQIZU6SWRZEK2WGXYGE2BQI \
  | 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: 69a4682334f4ad1c915ab1af831341822abf41659f516524ce699f64962930ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ed46efe5fc256f7f997949063b32770662500c7555baed8dea487620816d7c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-05-13T08:49:40Z",
    "title_canon_sha256": "1939322639bb9cfc6d61db43b3e0d053d300cd5336f4e51cbd7d6a8be04ed30b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.04085",
    "kind": "arxiv",
    "version": 1
  }
}