Pith Number

pith:U544HM32

pith:2019:U544HM327WVXZZ7CTISSIV4Q4K

not attested not anchored not stored refs pending

Tight-and-cheap conic relaxation for the AC optimal power flow problem

Christian Bingane, Miguel F. Anjos, S\'ebastien Le Digabel

arxiv:1908.02319 v1 · 2019-08-06 · 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{U544HM327WVXZZ7CTISSIV4Q4K}

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	2026-07-04T23:52:07.449059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a779c3b37afdab7ce7e29a25245790e2bbacf05be6937a02ffc3afac916a3afb

Aliases

arxiv: 1908.02319 · arxiv_version: 1908.02319v1 · doi: 10.48550/arxiv.1908.02319 · pith_short_12: U544HM327WVX · pith_short_16: U544HM327WVXZZ7C · pith_short_8: U544HM32

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/U544HM327WVXZZ7CTISSIV4Q4K \
  | 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: a779c3b37afdab7ce7e29a25245790e2bbacf05be6937a02ffc3afac916a3afb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b3fdffeb16c968ea757dd31cd5171d44665ac6bec85da38a4ab1af614e3c7b0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-08-06T18:43:26Z",
    "title_canon_sha256": "88e6a777f7afd760eb4b0cc96602c306c78f25d425928b616cdbec5465c53adf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02319",
    "kind": "arxiv",
    "version": 1
  }
}