Pith Number

pith:XUYDUIJG

pith:2022:XUYDUIJGRYFVCDG5H6Q2XVHX3M

not attested not anchored not stored refs pending

Efficient optimization-based quadrature for variational discretization of nonlocal problems

David Kamensky, Marco Pasetto, Marta D'Elia, Nathaniel Trask, Xiaochuan Tian, Zhaoxiang Shen

arxiv:2201.12391 v1 · 2022-01-28 · math.NA · cs.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XUYDUIJGRYFVCDG5H6Q2XVHX3M}

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	2026-07-05T04:25:54.127137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd303a21268e0b510cdd3fa1abd4f7db0b3e172d18f4e4ac8785f0ebc79040ce

Aliases

arxiv: 2201.12391 · arxiv_version: 2201.12391v1 · doi: 10.48550/arxiv.2201.12391 · pith_short_12: XUYDUIJGRYFV · pith_short_16: XUYDUIJGRYFVCDG5 · pith_short_8: XUYDUIJG

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/XUYDUIJGRYFVCDG5H6Q2XVHX3M \
  | 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: bd303a21268e0b510cdd3fa1abd4f7db0b3e172d18f4e4ac8785f0ebc79040ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93ce92aa87793a12c6293437bd3c2008ba9ca3d3ff15d62071b3a6355f265698",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-01-28T19:44:29Z",
    "title_canon_sha256": "2af885f72f70780d18c2645d9b9cea3e563bdcb43acfad4da7444930ed476fa3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.12391",
    "kind": "arxiv",
    "version": 1
  }
}