Pith Number

pith:KRXO2EHN

pith:2013:KRXO2EHNF4TPU64W2Y37KNL6OP

not attested not anchored not stored refs pending

Simultaneous computation of the row and column rank profiles

Cl\'ement Pernet (INRIA Grenoble Rh\^one-Alpes / LIG Laboratoire d'Informatique de Grenoble), INRIA Grenoble Rh\^one-Alpes / LIG Laboratoire d'Informatique de Grenoble), Jean-Guillaume Dumas (LJK), Ziad Sultan (LJK

arxiv:1301.4438 v1 · 2013-01-18 · cs.NA · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KRXO2EHNF4TPU64W2Y37KNL6OP}

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	2026-05-18T03:25:25.282422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

546eed10ed2f26fa7b96d637f5357e73f640a88aab1a5fd55fc107f4b0e33ff9

Aliases

arxiv: 1301.4438 · arxiv_version: 1301.4438v1 · doi: 10.48550/arxiv.1301.4438 · pith_short_12: KRXO2EHNF4TP · pith_short_16: KRXO2EHNF4TPU64W · pith_short_8: KRXO2EHN

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/KRXO2EHNF4TPU64W2Y37KNL6OP \
  | 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: 546eed10ed2f26fa7b96d637f5357e73f640a88aab1a5fd55fc107f4b0e33ff9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcb361c6d15fedf3f79efb5d89b6ca1bcb6a475317c5e8ea9f9a5c9d16984e61",
    "cross_cats_sorted": [
      "cs.MS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2013-01-18T17:23:01Z",
    "title_canon_sha256": "d66a19c97072220d4afd3c6b7c4b43802f2b938ad60b30297765fa929105062d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4438",
    "kind": "arxiv",
    "version": 1
  }
}