Pith Number

pith:GAGSKELD

pith:2010:GAGSKELDJUOHRBVXVIOZHGTPUS

not attested not anchored not stored refs pending

A rational Arnoldi approach for ill-conditioned linear systems

Claude Brezinski, Michela Redivo-Zaglia, Paolo Novati

arxiv:1009.5516 v1 · 2010-09-28 · math.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{GAGSKELDJUOHRBVXVIOZHGTPUS}

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	2026-05-18T04:40:09.954184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

300d2511634d1c7886b7aa1d939a6fa4a158a242cf6667c7769051be94cecda2

Aliases

arxiv: 1009.5516 · arxiv_version: 1009.5516v1 · doi: 10.48550/arxiv.1009.5516 · pith_short_12: GAGSKELDJUOH · pith_short_16: GAGSKELDJUOHRBVX · pith_short_8: GAGSKELD

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/GAGSKELDJUOHRBVXVIOZHGTPUS \
  | 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: 300d2511634d1c7886b7aa1d939a6fa4a158a242cf6667c7769051be94cecda2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e7da84eeda1e3624501864bdb1e573a18b20718cba88cd8fed20a92fd925bba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-09-28T10:15:13Z",
    "title_canon_sha256": "eb2c768355f1f0d9ccb6fd504ce0205d6304af8f90885a0b6c76f83cfb0301d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.5516",
    "kind": "arxiv",
    "version": 1
  }
}