Pith Number

pith:YFGKVO52

pith:2009:YFGKVO52PTEQLVCAMHSZQAQDMN

not attested not anchored not stored refs pending

An Example of Symmetry Exploitation for Energy-related Eigencomputations

Edoardo Di Napoli, Matthias Petschow, Paolo Bientinesi

arxiv:0910.5434 v1 · 2009-10-28 · cs.NA · cs.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{YFGKVO52PTEQLVCAMHSZQAQDMN}

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	2026-06-03T23:06:30.109504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c14caabbba7cc905d44061e59802036354e73f48b4135f48737879194e62af8e

Aliases

arxiv: 0910.5434 · arxiv_version: 0910.5434v1 · doi: 10.48550/arxiv.0910.5434 · pith_short_12: YFGKVO52PTEQ · pith_short_16: YFGKVO52PTEQLVCA · pith_short_8: YFGKVO52

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/YFGKVO52PTEQLVCAMHSZQAQDMN \
  | 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: c14caabbba7cc905d44061e59802036354e73f48b4135f48737879194e62af8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b4568078822d20dac26157e0e741a0e725fa3b1a324c83b5d70cd0ed4ad6628",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2009-10-28T17:02:17Z",
    "title_canon_sha256": "e3fd316483d830b58cc2763bdc41a3ae0774ba25beb9cd92d54a08ff4a2cb890"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5434",
    "kind": "arxiv",
    "version": 1
  }
}