Pith Number

pith:W7RMMZBQ

pith:2012:W7RMMZBQCIKUNEA4RZ2B37MTMA

not attested not anchored not stored refs pending

A Stochastic Smoothing Algorithm for Semidefinite Programming

Alexandre d'Aspremont, Noureddine El Karoui

arxiv:1204.0665 v2 · 2012-04-03 · 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{W7RMMZBQCIKUNEA4RZ2B37MTMA}

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	2026-05-18T02:57:24.366057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7e2c66430121546901c8e741dfd93600f182dea82e145f5d4c72e355bc92aec

Aliases

arxiv: 1204.0665 · arxiv_version: 1204.0665v2 · doi: 10.48550/arxiv.1204.0665 · pith_short_12: W7RMMZBQCIKU · pith_short_16: W7RMMZBQCIKUNEA4 · pith_short_8: W7RMMZBQ

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/W7RMMZBQCIKUNEA4RZ2B37MTMA \
  | 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: b7e2c66430121546901c8e741dfd93600f182dea82e145f5d4c72e355bc92aec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bac6042866377ca46197851e1a7fdbc275f05de53422df8974ac7c57deec6a01",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-04-03T11:52:42Z",
    "title_canon_sha256": "a73e033d7c3a9e6537f7782883f310d508956ef1e2c6f69b0126fa2e4e444adb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0665",
    "kind": "arxiv",
    "version": 2
  }
}