Pith Number

pith:RODLX4EN

pith:2013:RODLX4ENRNLDFR4KQXEEUCRYIK

not attested not anchored not stored refs pending

A Fast Semidefinite Approach to Solving Binary Quadratic Problems

Anton van den Hengel, Chunhua Shen, Peng Wang

arxiv:1304.0840 v1 · 2013-04-03 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RODLX4ENRNLDFR4KQXEEUCRYIK}

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	2026-05-18T00:57:56.445217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b86bbf08d8b5632c78a85c84a0a38429babc3a214faa437237be83661a707d6

Aliases

arxiv: 1304.0840 · arxiv_version: 1304.0840v1 · doi: 10.48550/arxiv.1304.0840 · pith_short_12: RODLX4ENRNLD · pith_short_16: RODLX4ENRNLDFR4K · pith_short_8: RODLX4EN

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/RODLX4ENRNLDFR4KQXEEUCRYIK \
  | 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: 8b86bbf08d8b5632c78a85c84a0a38429babc3a214faa437237be83661a707d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1846d1d75d7eedad9b8a5571ad5dfa2faeedf7c8189708c13d63e7c51219af84",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-04-03T04:31:10Z",
    "title_canon_sha256": "14bf43a143e828f8ab326a03d9021f18fe5c390fd6d21f0bdd6f4ec6f29297c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0840",
    "kind": "arxiv",
    "version": 1
  }
}