Pith Number

pith:VUKN2QHX

pith:2013:VUKN2QHXHVVS3R33EU7SVHFM66

not attested not anchored not stored refs pending

Discretely exact derivatives for hyperbolic PDE-constrained optimization problems discretized by the discontinuous Galerkin method

Georg Stadler, Lucas C. Wilcox, Omar Ghattas, Tan Bui-Thanh

arxiv:1311.6900 v1 · 2013-11-27 · 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{VUKN2QHXHVVS3R33EU7SVHFM66}

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	2026-05-18T03:06:05.249507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad14dd40f73d6b2dc77b253f2a9cacf7829235dbdaf21845eec45e7f6abac187

Aliases

arxiv: 1311.6900 · arxiv_version: 1311.6900v1 · doi: 10.48550/arxiv.1311.6900 · pith_short_12: VUKN2QHXHVVS · pith_short_16: VUKN2QHXHVVS3R33 · pith_short_8: VUKN2QHX

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/VUKN2QHXHVVS3R33EU7SVHFM66 \
  | 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: ad14dd40f73d6b2dc77b253f2a9cacf7829235dbdaf21845eec45e7f6abac187

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8197c1cacdeab13a9da7f1fb432eb42cd0d1c7199809eacc94b3a3260246c759",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-11-27T08:54:05Z",
    "title_canon_sha256": "46a79de063608dd96b8406f061f01f99171034a45d0923c9a9064ce18b11b957"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.6900",
    "kind": "arxiv",
    "version": 1
  }
}