Pith Number

pith:7ZQUMLDJ

pith:2015:7ZQUMLDJG4BSDW7R3NJQ4MS5VD

not attested not anchored not stored refs pending

A Low-Rank Coordinate-Descent Algorithm for Semidefinite Programming Relaxations of Optimal Power Flow

Jakub Marecek, Martin Takac

arxiv:1506.08568 v2 · 2015-06-29 · 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{7ZQUMLDJG4BSDW7R3NJQ4MS5VD}

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	2026-05-18T00:23:09.717448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe61462c69370321dbf1db530e325da8e737ec1264e6387da3db0e780127b9dc

Aliases

arxiv: 1506.08568 · arxiv_version: 1506.08568v2 · doi: 10.48550/arxiv.1506.08568 · pith_short_12: 7ZQUMLDJG4BS · pith_short_16: 7ZQUMLDJG4BSDW7R · pith_short_8: 7ZQUMLDJ

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/7ZQUMLDJG4BSDW7R3NJQ4MS5VD \
  | 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: fe61462c69370321dbf1db530e325da8e737ec1264e6387da3db0e780127b9dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e8d8f1b5e418a8fea6d0ae24bab16e846ec7e2ee21e6c600b54d67a8a96f6c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-06-29T10:09:46Z",
    "title_canon_sha256": "524619a7ed94e51c2f53ac87cbd904ee3e22d4032e17b394c45aa0b8ef604c0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.08568",
    "kind": "arxiv",
    "version": 2
  }
}