Pith Number

pith:H6M55FPJ

pith:2013:H6M55FPJJB3UMPLJUQCBCZMPVN

not attested not anchored not stored refs pending

Optimal preconditioning for the symmetric and non-symmetric coupling of adaptive finite elements and boundary elements

Dirk Praetorius, Ernst P. Stephan, Michael Feischl, Thomas F\"uhrer

arxiv:1311.5782 v1 · 2013-11-22 · math.NA

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H6M55FPJJB3UMPLJUQCBCZMPVN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:29:11.170808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f99de95e94877463d69a40411658fab43f73e592892cf94e03b47ad51cd234c

Aliases

arxiv: 1311.5782 · arxiv_version: 1311.5782v1 · doi: 10.48550/arxiv.1311.5782 · pith_short_12: H6M55FPJJB3U · pith_short_16: H6M55FPJJB3UMPLJ · pith_short_8: H6M55FPJ

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/H6M55FPJJB3UMPLJUQCBCZMPVN \
  | 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: 3f99de95e94877463d69a40411658fab43f73e592892cf94e03b47ad51cd234c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ce35e456e5d95132f12b5e8f9def360189f64598f210a2b51ad9fa44f0a36aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-11-22T15:46:05Z",
    "title_canon_sha256": "9aa32f2b9968812c28e3defc9f02745c6bdfb0daab24c01c1cf0f813b406c075"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5782",
    "kind": "arxiv",
    "version": 1
  }
}