Pith Number

pith:ECNOPGZ6

pith:2011:ECNOPGZ6COYJUVFLBVGSJ6MLBW

not attested not anchored not stored refs pending

On the Convergence of Ritz Pairs and Refined Ritz Vectors for Quadratic Eigenvalue Problems

Tsung-Ming Huang, Wen-Wei Lin, Zhongxiao Jia

arxiv:1109.6426 v4 · 2011-09-29 · 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{ECNOPGZ6COYJUVFLBVGSJ6MLBW}

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	2026-05-18T02:23:35.936127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

209ae79b3e13b09a54ab0d4d24f98b0daf90446ce82156a33a99b3bacdcb1358

Aliases

arxiv: 1109.6426 · arxiv_version: 1109.6426v4 · doi: 10.48550/arxiv.1109.6426 · pith_short_12: ECNOPGZ6COYJ · pith_short_16: ECNOPGZ6COYJUVFL · pith_short_8: ECNOPGZ6

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/ECNOPGZ6COYJUVFLBVGSJ6MLBW \
  | 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: 209ae79b3e13b09a54ab0d4d24f98b0daf90446ce82156a33a99b3bacdcb1358

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1149ed3047139028710dbe02344e42118622165ba172adc76f809b0af0e0feb1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-09-29T08:03:33Z",
    "title_canon_sha256": "78600861b517dbf4a2693961bac9602e8055af57b0773a6620a33425268fe318"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6426",
    "kind": "arxiv",
    "version": 4
  }
}