Pith Number

pith:PLA5D6WZ

pith:2013:PLA5D6WZU6A3EGZZGV7H3XZFR2

not attested not anchored not stored refs pending

Fast implementation for semidefinite programs with positive matrix completion

Kazuhide Nakata, Makoto Yamashita

arxiv:1310.6919 v2 · 2013-10-25 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PLA5D6WZU6A3EGZZGV7H3XZFR2}

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	2026-05-18T02:51:08.337104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ac1d1fad9a781b21b39357e7ddf258e8f5810ecf7c36da9c18eee67dc8400f7

Aliases

arxiv: 1310.6919 · arxiv_version: 1310.6919v2 · doi: 10.48550/arxiv.1310.6919 · pith_short_12: PLA5D6WZU6A3 · pith_short_16: PLA5D6WZU6A3EGZZ · pith_short_8: PLA5D6WZ

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/PLA5D6WZU6A3EGZZGV7H3XZFR2 \
  | 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: 7ac1d1fad9a781b21b39357e7ddf258e8f5810ecf7c36da9c18eee67dc8400f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6407a089b4d1d810d087edbd4d6aba1ebdd3bca78b8487303979f53932ee7cba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-10-25T13:55:03Z",
    "title_canon_sha256": "518c02a003f2a85b692dee198fc9fc62e79c4648f24f3375c3638d1af22ce8e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6919",
    "kind": "arxiv",
    "version": 2
  }
}