Pith Number

pith:HJ2C4VI2

pith:2016:HJ2C4VI2GALRGG5ZMUEKXUGXF2

not attested not anchored not stored refs pending

Optimizing Gershgorin for Symmetric Matrices

Lee DeVille

arxiv:1605.07239 v2 · 2016-05-23 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HJ2C4VI2GALRGG5ZMUEKXUGXF2}

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	2026-05-17T23:47:31.919287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a742e551a3017131bb96508abd0d72eb77dcf61b0e33e8e2d20cf009417c06f

Aliases

arxiv: 1605.07239 · arxiv_version: 1605.07239v2 · doi: 10.48550/arxiv.1605.07239 · pith_short_12: HJ2C4VI2GALR · pith_short_16: HJ2C4VI2GALRGG5Z · pith_short_8: HJ2C4VI2

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/HJ2C4VI2GALRGG5ZMUEKXUGXF2 \
  | 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: 3a742e551a3017131bb96508abd0d72eb77dcf61b0e33e8e2d20cf009417c06f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76b6162e94f25aee43d10cf1c182d5c04214a927c18b9198e025fe3431741925",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2016-05-23T23:35:19Z",
    "title_canon_sha256": "88a53dc271cdb0850eeb1f4432e748023f143cf223230caffc9d001f137f8b41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.07239",
    "kind": "arxiv",
    "version": 2
  }
}