Pith Number

pith:SZ4VVLCH

pith:2014:SZ4VVLCHJFXLFKOWCO4A55CLNM

not attested not anchored not stored refs pending

Extreme point inequalities and geometry of the rank sparsity ball

D. Drusvyatskiy, H. Wolkowicz, S.A. Vavasis

arxiv:1401.4774 v1 · 2014-01-20 · 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{SZ4VVLCHJFXLFKOWCO4A55CLNM}

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	2026-05-18T03:01:44.632107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96795aac47496eb2a9d613b80ef44b6b27049667a56e1318b1a237b7145302c2

Aliases

arxiv: 1401.4774 · arxiv_version: 1401.4774v1 · doi: 10.48550/arxiv.1401.4774 · pith_short_12: SZ4VVLCHJFXL · pith_short_16: SZ4VVLCHJFXLFKOW · pith_short_8: SZ4VVLCH

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/SZ4VVLCHJFXLFKOWCO4A55CLNM \
  | 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: 96795aac47496eb2a9d613b80ef44b6b27049667a56e1318b1a237b7145302c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2db405aa61b8fac253591af910405c0f41a3ab0e7cfb49c8cf9f47154d0977cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-01-20T02:24:07Z",
    "title_canon_sha256": "507fc464b14bc47ff836e590f7723fc581a6cfb652cf07366396baae954233d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.4774",
    "kind": "arxiv",
    "version": 1
  }
}