Pith Number

pith:LDXE5GWD

pith:2013:LDXE5GWDL453BXJ6GB6DTM45AL

not attested not anchored not stored refs pending

Global Solutions to Large-Scale Spherical Constrained Quadratic Minimization via Canonical Dual Approach

David Y. Gao, Yi Chen

arxiv:1308.4450 v1 · 2013-08-20 · 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{LDXE5GWDL453BXJ6GB6DTM45AL}

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	2026-05-18T03:15:31.792519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58ee4e9ac35f3bb0dd3e307c39b39d02c2d27f0b6ba94e2bdc1d69f118557870

Aliases

arxiv: 1308.4450 · arxiv_version: 1308.4450v1 · doi: 10.48550/arxiv.1308.4450 · pith_short_12: LDXE5GWDL453 · pith_short_16: LDXE5GWDL453BXJ6 · pith_short_8: LDXE5GWD

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/LDXE5GWDL453BXJ6GB6DTM45AL \
  | 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: 58ee4e9ac35f3bb0dd3e307c39b39d02c2d27f0b6ba94e2bdc1d69f118557870

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33b6063298456ca702c0ed7b6b93f3fc084f99fa0c52794a743c10411b71fdf4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-08-20T23:44:29Z",
    "title_canon_sha256": "e91f957c9b9df8f26af7c2cc8f0fcd506f89263fa544baae57735e60a2f2649f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4450",
    "kind": "arxiv",
    "version": 1
  }
}