Pith Number

pith:7VIMVUUI

pith:2019:7VIMVUUIQVAAYMLCA2IVU6E3WF

not attested not anchored not stored refs pending

BPX preconditioners for isogeometric analysis using analysis-suitable T-splines

Durkbin Cho, Rafael V\'azquez

arxiv:1907.01790 v1 · 2019-07-03 · math.NA · cs.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{7VIMVUUIQVAAYMLCA2IVU6E3WF}

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	2026-05-17T23:41:35.072549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd50cad28885400c316206915a789bb1640bb8ff758ffe1c49cd5d95d375a810

Aliases

arxiv: 1907.01790 · arxiv_version: 1907.01790v1 · doi: 10.48550/arxiv.1907.01790 · pith_short_12: 7VIMVUUIQVAA · pith_short_16: 7VIMVUUIQVAAYMLC · pith_short_8: 7VIMVUUI

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/7VIMVUUIQVAAYMLCA2IVU6E3WF \
  | 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: fd50cad28885400c316206915a789bb1640bb8ff758ffe1c49cd5d95d375a810

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ec9e4edef5ab1fc9dfb6f6d5cf58525491d4429bd5ecbec66a98fcc8f24b46c",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-07-03T08:38:53Z",
    "title_canon_sha256": "04647701d345a06ede9fb44447e4425df5380f5b3845b404d2e40aca829c3d11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01790",
    "kind": "arxiv",
    "version": 1
  }
}