Pith Number

pith:FVJNZEW4

pith:2020:FVJNZEW4ZELAP7SCXA5SAU7M3U

not attested not anchored not stored refs pending

Nearly optimal scaling in the SR decomposition

Heike Fassbender, Miroslav Rozloznik, Sanja Singer

arxiv:2004.03288 v1 · 2020-04-07 · 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{FVJNZEW4ZELAP7SCXA5SAU7M3U}

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	2026-07-05T00:53:24.642448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d52dc92dcc91607fe42b83b2053ecdd35e7d82e27668e60e1af80acf928144d

Aliases

arxiv: 2004.03288 · arxiv_version: 2004.03288v1 · doi: 10.48550/arxiv.2004.03288 · pith_short_12: FVJNZEW4ZELA · pith_short_16: FVJNZEW4ZELAP7SC · pith_short_8: FVJNZEW4

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/FVJNZEW4ZELAP7SCXA5SAU7M3U \
  | 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: 2d52dc92dcc91607fe42b83b2053ecdd35e7d82e27668e60e1af80acf928144d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a02d8792346bf7e72d08adbcff960391071e9bc68e8b581ad6a01e29534bdf63",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-04-07T11:48:45Z",
    "title_canon_sha256": "ab84d8a14aeef4225c84f72a0cb786671e36ef86f9e0b04e3d2fe7b9578dcdf6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.03288",
    "kind": "arxiv",
    "version": 1
  }
}