Pith Number

pith:6PSEUNS2

pith:2012:6PSEUNS2KIQEJF7BBTKTDA26XO

not attested not anchored not stored refs pending

Stability Estimates and Structural Spectral Properties of Saddle Point Problems

Valeria Simoncini, Walter Zulehner, Wolfgang Krendl

arxiv:1202.3330 v1 · 2012-02-15 · 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{6PSEUNS2KIQEJF7BBTKTDA26XO}

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	2026-05-18T04:02:14.120929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3e44a365a52204497e10cd531835ebba235fcaba0d8ba1f845ecfcde86e7c90

Aliases

arxiv: 1202.3330 · arxiv_version: 1202.3330v1 · doi: 10.48550/arxiv.1202.3330 · pith_short_12: 6PSEUNS2KIQE · pith_short_16: 6PSEUNS2KIQEJF7B · pith_short_8: 6PSEUNS2

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/6PSEUNS2KIQEJF7BBTKTDA26XO \
  | 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: f3e44a365a52204497e10cd531835ebba235fcaba0d8ba1f845ecfcde86e7c90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cffff1cafabb8eacf842bee126bcfa509ba53138d0f5876beaf7c69d21e0cc1a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-02-15T14:57:03Z",
    "title_canon_sha256": "9a0c643660d245fa600a4d90620a961de15b766a9ad183fb6c6453206c292a8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3330",
    "kind": "arxiv",
    "version": 1
  }
}