Pith Number

pith:Q2ONPHMG

pith:2013:Q2ONPHMGV5MBN7ZYBFGEZ5BMPT

not attested not anchored not stored refs pending

A new semidefinite relaxation for $\ell_{1}$-constrained quadratic optimization and extensions

Sheng-Nan Han, Yong Xia, Yu-Jun Gong

arxiv:1401.0081 v1 · 2013-12-31 · 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{Q2ONPHMGV5MBN7ZYBFGEZ5BMPT}

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	2026-05-18T03:03:31.143061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

869cd79d86af5816ff38094c4cf42c7ce99d5445fec35ae43e9016bf64af192f

Aliases

arxiv: 1401.0081 · arxiv_version: 1401.0081v1 · doi: 10.48550/arxiv.1401.0081 · pith_short_12: Q2ONPHMGV5MB · pith_short_16: Q2ONPHMGV5MBN7ZY · pith_short_8: Q2ONPHMG

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/Q2ONPHMGV5MBN7ZYBFGEZ5BMPT \
  | 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: 869cd79d86af5816ff38094c4cf42c7ce99d5445fec35ae43e9016bf64af192f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bdb765a015e9a511f4d03ff2d6d394bd092324b788e86966f71bbefb14d43a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-12-31T03:38:39Z",
    "title_canon_sha256": "2f572b05135252cca4ebdd8767363656627b9999bf5382ce49333afa84cd18a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0081",
    "kind": "arxiv",
    "version": 1
  }
}