Pith Number

pith:RH3TNJ7Q

pith:2022:RH3TNJ7QGDSC2OXKUESQVQ6SSZ

not attested not anchored not stored refs pending

Krylov subspace residual and restarting for certain second order differential equations

L.A. Knizhnerman, M.A. Botchev, M. Schweitzer

arxiv:2206.06909 v2 · 2022-06-14 · 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{RH3TNJ7QGDSC2OXKUESQVQ6SSZ}

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	2026-07-05T05:58:38.560540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89f736a7f030e42d3aeaa1250ac3d2965903d20c0079c19805c50ab10e92b4b4

Aliases

arxiv: 2206.06909 · arxiv_version: 2206.06909v2 · doi: 10.48550/arxiv.2206.06909 · pith_short_12: RH3TNJ7QGDSC · pith_short_16: RH3TNJ7QGDSC2OXK · pith_short_8: RH3TNJ7Q

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/RH3TNJ7QGDSC2OXKUESQVQ6SSZ \
  | 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: 89f736a7f030e42d3aeaa1250ac3d2965903d20c0079c19805c50ab10e92b4b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "154c85c2267efa7e48ccddcc712fd7bfab9174f1431204dae80891db6fcad317",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-06-14T15:06:34Z",
    "title_canon_sha256": "76bb6f8825d4fb91787f582c378eca47a9ed898b681df8073b1d998b4e8c5805"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.06909",
    "kind": "arxiv",
    "version": 2
  }
}