Pith Number

pith:Q5AFKYFL

pith:2014:Q5AFKYFLZMCY2ULWT6WHVUGHPL

not attested not anchored not stored refs pending

Transparent boundary conditions in a Discontinuous Galerkin Trefftz method

Fritz Kretzschmar, Herbert Egger, Igor Tsukerman, Sascha M. Schnepp, Thomas Weiland

arxiv:1410.1899 v2 · 2014-10-07 · 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{Q5AFKYFLZMCY2ULWT6WHVUGHPL}

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	2026-05-18T02:07:26.928223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87405560abcb058d51769fac7ad0c77ae96f7a6f3241c812b1b5453dcd5a76de

Aliases

arxiv: 1410.1899 · arxiv_version: 1410.1899v2 · doi: 10.48550/arxiv.1410.1899 · pith_short_12: Q5AFKYFLZMCY · pith_short_16: Q5AFKYFLZMCY2ULW · pith_short_8: Q5AFKYFL

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/Q5AFKYFLZMCY2ULWT6WHVUGHPL \
  | 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: 87405560abcb058d51769fac7ad0c77ae96f7a6f3241c812b1b5453dcd5a76de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b66e161a76ef75df3feb37d6b290d8c34557236b30fd0cff54349db39746d91",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-10-07T20:29:19Z",
    "title_canon_sha256": "4a5bd37d1e2d3e60825479353208511234914e5e6a18512790ee1566cd8b8431"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.1899",
    "kind": "arxiv",
    "version": 2
  }
}