Pith Number

pith:EJZE5MTF

pith:2025:EJZE5MTFQ75FNIXLAS2Z7XIDGH

not attested not anchored not stored refs pending

Randomized Krylov-Schur eigensolver with deflation

Jean-Guillaume de Damas, Laura Grigori

arxiv:2508.05400 v1 · 2025-08-07 · 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{EJZE5MTFQ75FNIXLAS2Z7XIDGH}

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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

Deterministic sketching for Krylov subspace methods

Receipt and verification

First computed	2026-07-05T11:50:12.445605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22724eb26587fa56a2eb04b59fdd0331e14e2b2d5c9d35b389cdb5f33a755eca

Aliases

arxiv: 2508.05400 · arxiv_version: 2508.05400v1 · doi: 10.48550/arxiv.2508.05400 · pith_short_12: EJZE5MTFQ75F · pith_short_16: EJZE5MTFQ75FNIXL · pith_short_8: EJZE5MTF

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/EJZE5MTFQ75FNIXLAS2Z7XIDGH \
  | 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: 22724eb26587fa56a2eb04b59fdd0331e14e2b2d5c9d35b389cdb5f33a755eca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c86fde6ca25cb9e566ba614b1f154becf079dcd6c30460bc355d91322678cb7b",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-08-07T13:52:42Z",
    "title_canon_sha256": "c1e56efcd9732ead878992b28c2a99ca9e014ee6d9a3fdefe7620d3da6c81997"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.05400",
    "kind": "arxiv",
    "version": 1
  }
}