Pith Number

pith:7L4ZGIKD

pith:2013:7L4ZGIKDBNUN5OF4YTYGXFBLBR

not attested not anchored not stored refs pending

Power Grid Simulation using Matrix Exponential Method with Rational Krylov Subspaces

Chung-Kuan Cheng, Hao Zhuang, Shih-Hung Weng

arxiv:1309.5333 v3 · 2013-09-20 · cs.CE · cs.NA · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7L4ZGIKDBNUN5OF4YTYGXFBLBR}

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	2026-05-18T03:10:26.077289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

faf99321430b68deb8bcc4f06b942b0c5cabeb8f2d5ff8536243a2eb209a6e22

Aliases

arxiv: 1309.5333 · arxiv_version: 1309.5333v3 · doi: 10.48550/arxiv.1309.5333 · pith_short_12: 7L4ZGIKDBNUN · pith_short_16: 7L4ZGIKDBNUN5OF4 · pith_short_8: 7L4ZGIKD

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/7L4ZGIKDBNUN5OF4YTYGXFBLBR \
  | 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: faf99321430b68deb8bcc4f06b942b0c5cabeb8f2d5ff8536243a2eb209a6e22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "910f74b56609889b786ee6ed94612b9bc4e9e1f6f06a8a5fd1863da16fb4044f",
    "cross_cats_sorted": [
      "cs.NA",
      "math.DS"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2013-09-20T17:23:02Z",
    "title_canon_sha256": "1604feb0a58dcb8bddffcd2008c63479ade666f0401597d39e390829d75525cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5333",
    "kind": "arxiv",
    "version": 3
  }
}