Pith Number

pith:LKEXNM57

pith:2012:LKEXNM57LKWAJ4FPCZ5DBGPVHD

not attested not anchored not stored refs pending

Inverse estimates for elliptic boundary integral operators and their application to the adaptive coupling of FEM and BEM

Dirk Praetorius, Jens Markus Melenk, Markus Aurada, Michael Feischl, Michael Karkulik, Thomas F\"uhrer

arxiv:1211.4360 v1 · 2012-11-19 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LKEXNM57LKWAJ4FPCZ5DBGPVHD}

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	2026-05-18T02:18:04.529429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a8976b3bf5aac04f0af167a3099f538d468e3eef9c43396c356df0956cb6b44

Aliases

arxiv: 1211.4360 · arxiv_version: 1211.4360v1 · doi: 10.48550/arxiv.1211.4360 · pith_short_12: LKEXNM57LKWA · pith_short_16: LKEXNM57LKWAJ4FP · pith_short_8: LKEXNM57

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/LKEXNM57LKWAJ4FPCZ5DBGPVHD \
  | 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: 5a8976b3bf5aac04f0af167a3099f538d468e3eef9c43396c356df0956cb6b44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4baa40dd970a6e407f40974f165a01f9bc3792b04fa50654f3e1671b89b52540",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-11-19T11:01:30Z",
    "title_canon_sha256": "1c2a75dfea171977d9985ae78b42e79c5ef5c6b079e1af46d951564508c091a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4360",
    "kind": "arxiv",
    "version": 1
  }
}