Pith Number

pith:QW5OFQUZ

pith:2011:QW5OFQUZMR5TDX3AB64RPRNFXY

not attested not anchored not stored refs pending

A Polynomial-Time Algorithm for the Tridiagonal and Hessenberg P-Matrix Linear Complementarity Problem

Bernd G\"artner, Markus Sprecher

arxiv:1112.0217 v1 · 2011-12-01 · math.OC · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QW5OFQUZMR5TDX3AB64RPRNFXY}

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	2026-05-18T04:07:16.528374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85bae2c299647b31df600fb917c5a5be33c67d97e3fd2cf741d3c295f0980a43

Aliases

arxiv: 1112.0217 · arxiv_version: 1112.0217v1 · doi: 10.48550/arxiv.1112.0217 · pith_short_12: QW5OFQUZMR5T · pith_short_16: QW5OFQUZMR5TDX3A · pith_short_8: QW5OFQUZ

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/QW5OFQUZMR5TDX3AB64RPRNFXY \
  | 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: 85bae2c299647b31df600fb917c5a5be33c67d97e3fd2cf741d3c295f0980a43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b692bc01286b30f8dd5d84acc028993930c0978eb632ad511cc76266ffa671d",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2011-12-01T15:53:50Z",
    "title_canon_sha256": "b993fbdd03b67d019c829f57f3918a438b1b5ca2d4201cd23cc2040b445e2c46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0217",
    "kind": "arxiv",
    "version": 1
  }
}