Pith Number

pith:CQ3AJPUT

pith:2013:CQ3AJPUTA4VT45ZDVAD4QTPQQS

not attested not anchored not stored refs pending

Greedy algorithms for high-dimensional eigenvalue problems

Eric Canc\`es, Tony Leli\`evre, Virginie Ehrlacher

arxiv:1304.2631 v1 · 2013-04-09 · 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{CQ3AJPUTA4VT45ZDVAD4QTPQQS}

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	2026-05-18T03:28:31.217549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

143604be93072b3e7723a807c84df084910b657717d5b3b066878dd2bfd9d8b3

Aliases

arxiv: 1304.2631 · arxiv_version: 1304.2631v1 · doi: 10.48550/arxiv.1304.2631 · pith_short_12: CQ3AJPUTA4VT · pith_short_16: CQ3AJPUTA4VT45ZD · pith_short_8: CQ3AJPUT

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/CQ3AJPUTA4VT45ZDVAD4QTPQQS \
  | 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: 143604be93072b3e7723a807c84df084910b657717d5b3b066878dd2bfd9d8b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c420c8f05417cf1f1165717db783d72e7b2879de3ddfcf3058931383e11670db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-04-09T15:13:44Z",
    "title_canon_sha256": "7ea14c4e10ae8171b0da67676cef519b66ec6d356fe909a415b3951863a4f73d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2631",
    "kind": "arxiv",
    "version": 1
  }
}