Pith Number

pith:VW2BHYI6

pith:2022:VW2BHYI6ZQ6ZSWYR3UEQKMLPVE

not attested not anchored not stored refs pending

Improved ParaDiag via low-rank updates and interpolation

Daniel Kressner, Junli Zhu, Stefano Massei

arxiv:2204.03073 v3 · 2022-04-06 · 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{VW2BHYI6ZQ6ZSWYR3UEQKMLPVE}

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.

Cited by

1 paper in Pith

An Augmented Lagrangian Preconditioner for Navier--Stokes Equations with Runge--Kutta in Time

Receipt and verification

First computed	2026-07-05T06:20:34.953351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adb413e11ecc3d995b11dd0905316fa93bb081bfd6c785afbe8484119de83bf8

Aliases

arxiv: 2204.03073 · arxiv_version: 2204.03073v3 · doi: 10.48550/arxiv.2204.03073 · pith_short_12: VW2BHYI6ZQ6Z · pith_short_16: VW2BHYI6ZQ6ZSWYR · pith_short_8: VW2BHYI6

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/VW2BHYI6ZQ6ZSWYR3UEQKMLPVE \
  | 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: adb413e11ecc3d995b11dd0905316fa93bb081bfd6c785afbe8484119de83bf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dd151a6803886e14b4e68df0896dabf045917db1ccfd8dfece028a94dc005dc",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-04-06T20:18:02Z",
    "title_canon_sha256": "644be07816af23e9449027147065e7de87ed9abe02030ad42c5b9c2121a8ea8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.03073",
    "kind": "arxiv",
    "version": 3
  }
}