Pith Number

pith:HGGCERLG

pith:2013:HGGCERLGWDKUQSDSNSFM3KBPPV

not attested not anchored not stored refs pending

Semidefinite programming and eigenvalue bounds for the graph partition problem

Edwin R. van Dam, Renata Sotirov

arxiv:1312.0332 v2 · 2013-12-02 · math.OC · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HGGCERLGWDKUQSDSNSFM3KBPPV}

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	2026-05-18T01:26:11.075656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

398c224566b0d54848726c8acda82f7d42b81d410cdfcd5a7348bdcc8e58f60d

Aliases

arxiv: 1312.0332 · arxiv_version: 1312.0332v2 · doi: 10.48550/arxiv.1312.0332 · pith_short_12: HGGCERLGWDKU · pith_short_16: HGGCERLGWDKUQSDS · pith_short_8: HGGCERLG

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/HGGCERLGWDKUQSDSNSFM3KBPPV \
  | 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: 398c224566b0d54848726c8acda82f7d42b81d410cdfcd5a7348bdcc8e58f60d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c8cf75721a44e1eaacac4ee24b17348a4a7ed3b874dece89913212fd03dd7d7",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-12-02T05:20:07Z",
    "title_canon_sha256": "fda71fd9327c1d5955ded8fdac362599cbdac85f3cb8beff99767dc327d8b0c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.0332",
    "kind": "arxiv",
    "version": 2
  }
}