Pith Number

pith:CQXC2EUS

pith:2018:CQXC2EUSCHZFZHS723KWTLATSH

not attested not anchored not stored refs pending

Achieving SDP Tightness Through SOCP Relaxation with Cycle-Based SDP Feasibility Constraints for AC OPF

Bo Zeng, Hossein Ghassempour Aghamolki, Lingling Fan, Zhixin Miao

arxiv:1804.05128 v2 · 2018-04-13 · 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{CQXC2EUSCHZFZHS723KWTLATSH}

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	2026-05-18T00:03:56.150758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

142e2d129211f25c9e5fd6d569ac1391ff072cc8931b4a94cc4e0580c12a8fd1

Aliases

arxiv: 1804.05128 · arxiv_version: 1804.05128v2 · doi: 10.48550/arxiv.1804.05128 · pith_short_12: CQXC2EUSCHZF · pith_short_16: CQXC2EUSCHZFZHS7 · pith_short_8: CQXC2EUS

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/CQXC2EUSCHZFZHS723KWTLATSH \
  | 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: 142e2d129211f25c9e5fd6d569ac1391ff072cc8931b4a94cc4e0580c12a8fd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea1c826e8e9fa137f15cb4ba497906aa54957240a9efa01e6fdc1c5b525f14c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-04-13T21:35:28Z",
    "title_canon_sha256": "2731ef143c334f582cfb886928dbeeb170f6a5f557538da8d06f3c435e87018a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05128",
    "kind": "arxiv",
    "version": 2
  }
}