Pith Number

pith:BWD2GCWX

pith:2014:BWD2GCWXNG3RE5AZAUYLODR6ID

not attested not anchored not stored refs pending

Simultaneous quasi-optimal convergence in FEM-BEM coupling

Barbara Wohlmuth, Dirk Praetorius, Jens Markus Melenk

arxiv:1404.2744 v2 · 2014-04-10 · 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{BWD2GCWXNG3RE5AZAUYLODR6ID}

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	2026-05-18T00:52:02.413356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d87a30ad769b71274190530b70e3e40f60b0aba2fe19b3f0f6d22ac1194bbdd

Aliases

arxiv: 1404.2744 · arxiv_version: 1404.2744v2 · doi: 10.48550/arxiv.1404.2744 · pith_short_12: BWD2GCWXNG3R · pith_short_16: BWD2GCWXNG3RE5AZ · pith_short_8: BWD2GCWX

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/BWD2GCWXNG3RE5AZAUYLODR6ID \
  | 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: 0d87a30ad769b71274190530b70e3e40f60b0aba2fe19b3f0f6d22ac1194bbdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8164449118969791aaeba2f5110d6e2d5d358dfc8a5a26c5386b3b041a8b7468",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-04-10T09:21:04Z",
    "title_canon_sha256": "65683c4a75685815bb5a7ce8979223c09d0e5ea07a91645de77bc61350a741f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.2744",
    "kind": "arxiv",
    "version": 2
  }
}