Pith Number

pith:L2MAK646

pith:2026:L2MAK646IVAUABKAPUK5A35NLS

not attested not anchored not stored refs pending

Local-to-Global Exactness of SDP Relaxations for Sparse QCQPs

Masakazu Kojima, Naohiko Arima, Sunyoung Kim

arxiv:2606.21823 v1 · 2026-06-20 · 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{L2MAK646IVAUABKAPUK5A35NLS}

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	2026-06-23T01:13:23.777432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e98057b9e45414005407d15d06fad5c94f511b27e0d287d4212efbdfa45802b

Aliases

arxiv: 2606.21823 · arxiv_version: 2606.21823v1 · doi: 10.48550/arxiv.2606.21823 · pith_short_12: L2MAK646IVAU · pith_short_16: L2MAK646IVAUABKA · pith_short_8: L2MAK646

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/L2MAK646IVAUABKAPUK5A35NLS \
  | 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: 5e98057b9e45414005407d15d06fad5c94f511b27e0d287d4212efbdfa45802b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35afaea112bccff0505f7d115da0872aac4b26da25105eab8c2b6559aac59c04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-06-20T01:24:17Z",
    "title_canon_sha256": "df1aa9c14f13cdb155eca022e03480ecd0a729b994de93f1edceffb5c7bc9575"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.21823",
    "kind": "arxiv",
    "version": 1
  }
}