Pith Number

pith:2O37L3HQ

pith:2023:2O37L3HQQ2PHFW64NFFLI2ZJK7

not attested not anchored not stored refs pending

BDDC preconditioners for virtual element approximations of the three-dimensional Stokes equations

Franco Dassi, Simone Scacchi, Stefano Zampini, Tommaso Bevilacqua

arxiv:2304.09770 v2 · 2023-04-19 · 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{2O37L3HQQ2PHFW64NFFLI2ZJK7}

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	2026-07-05T06:10:38.298533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3b7f5ecf0869e72dbdc694ab46b2957fa357d3b2e36d467493483f9ca76d69b

Aliases

arxiv: 2304.09770 · arxiv_version: 2304.09770v2 · doi: 10.48550/arxiv.2304.09770 · pith_short_12: 2O37L3HQQ2PH · pith_short_16: 2O37L3HQQ2PHFW64 · pith_short_8: 2O37L3HQ

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/2O37L3HQQ2PHFW64NFFLI2ZJK7 \
  | 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: d3b7f5ecf0869e72dbdc694ab46b2957fa357d3b2e36d467493483f9ca76d69b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdab40e6440e2b6796d2160a4fb261f02efd60b854574d7d0604eb0b382660f1",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-04-19T15:46:02Z",
    "title_canon_sha256": "685a94c8c794f730ffef20868f178d9ddd9ff294c4837b30556413f72dd9cbaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.09770",
    "kind": "arxiv",
    "version": 2
  }
}