Pith Number

pith:2NXPXWGH

pith:2019:2NXPXWGHNXW4R3AXQBCTYRWPIR

not attested not anchored not stored refs pending

Finite element error estimates for one-dimensional elliptic optimal control by BV functions

Boris Vexler, Dominik Hafemeyer, Florian Mannel, Ira Neitzel

arxiv:1902.05893 v2 · 2019-02-15 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2NXPXWGHNXW4R3AXQBCTYRWPIR}

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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.

Cited by

1 paper in Pith

Optimal finite element error estimates for an optimal control problem governed by the wave equation with controls of bounded variation

Receipt and verification

First computed	2026-05-17T23:43:14.692415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d36efbd8c76dedc8ec1780453c46cf446e8b72dbaee106af327d2e784dd4a211

Aliases

arxiv: 1902.05893 · arxiv_version: 1902.05893v2 · doi: 10.48550/arxiv.1902.05893 · pith_short_12: 2NXPXWGHNXW4 · pith_short_16: 2NXPXWGHNXW4R3AX · pith_short_8: 2NXPXWGH

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/2NXPXWGHNXW4R3AXQBCTYRWPIR \
  | 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: d36efbd8c76dedc8ec1780453c46cf446e8b72dbaee106af327d2e784dd4a211

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34d4dc964b4179ba82aef011e93d6230978b59b5c2b76a32e82a69d3c2a9fcc9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-02-15T17:32:38Z",
    "title_canon_sha256": "0ef58ea50e82571b1d668193ee0da24b8127d067b1874d4c62cdebbd7ff26d3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05893",
    "kind": "arxiv",
    "version": 2
  }
}