Pith Number

pith:5YGZWERH

pith:2012:5YGZWERHC4WBMDZGH3UXXP42OH

not attested not anchored not stored refs pending

Preconditioned Recycling Krylov subspace methods for self-adjoint problems

Andr\'e Gaul, Nico Schl\"omer

arxiv:1208.0264 v4 · 2012-08-01 · math.NA · physics.comp-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5YGZWERHC4WBMDZGH3UXXP42OH}

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	2026-05-18T02:25:10.593961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee0d9b1227172c160f263ee97bbf9a71dc52d541da0e880454ef649882d85262

Aliases

arxiv: 1208.0264 · arxiv_version: 1208.0264v4 · doi: 10.48550/arxiv.1208.0264 · pith_short_12: 5YGZWERHC4WB · pith_short_16: 5YGZWERHC4WBMDZG · pith_short_8: 5YGZWERH

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/5YGZWERHC4WBMDZGH3UXXP42OH \
  | 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: ee0d9b1227172c160f263ee97bbf9a71dc52d541da0e880454ef649882d85262

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fde9a6bbde408673ec917d03a06e052db47b221ee85d154a7113bf0a5ca66f9d",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-08-01T16:22:14Z",
    "title_canon_sha256": "6c6bc85cfd810c8c14c7de17334ef196425264f3e80f7f753aad72dc0c3d669b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0264",
    "kind": "arxiv",
    "version": 4
  }
}