Pith Number

pith:KUAPKJZ2

pith:2018:KUAPKJZ2SBWF2LWHBXMZZTAPHP

not attested not anchored not stored refs pending

Penalized Parabolic Relaxation for Optimal Power Flow Problem

Edward Quarm, Fariba Zohrizadeh, Mohsen Kheirandishfard, Ramtin Madani

arxiv:1809.09809 v1 · 2018-09-26 · 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{KUAPKJZ2SBWF2LWHBXMZZTAPHP}

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	2026-05-18T00:04:43.595186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5500f5273a906c5d2ec70dd99ccc0f3bf37478a3faa7b4a6f6cf7522b06b00f7

Aliases

arxiv: 1809.09809 · arxiv_version: 1809.09809v1 · doi: 10.48550/arxiv.1809.09809 · pith_short_12: KUAPKJZ2SBWF · pith_short_16: KUAPKJZ2SBWF2LWH · pith_short_8: KUAPKJZ2

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/KUAPKJZ2SBWF2LWHBXMZZTAPHP \
  | 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: 5500f5273a906c5d2ec70dd99ccc0f3bf37478a3faa7b4a6f6cf7522b06b00f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c4fd3d9c8d041bbc0d110c10d6967593764a2f7372ab8b9b6e26d8a1e913b49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-09-26T05:07:35Z",
    "title_canon_sha256": "27201862694e1a3e76fb196f0a06752d8657ce9118eca79412db7615d048ef1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.09809",
    "kind": "arxiv",
    "version": 1
  }
}