Pith Number

pith:6WXLUATO

pith:2016:6WXLUATOFHDD3RP5VTBJYMT2SO

not attested not anchored not stored refs pending

Maximization of the Spectral Gap for Chemical Graphs by means of a Solution to a Mixed Integer Semidefinite Program

Daniel Sevcovic, Sona Pavlikova

arxiv:1611.06959 v1 · 2016-11-21 · 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{6WXLUATOFHDD3RP5VTBJYMT2SO}

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	2026-05-18T00:57:32.438736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5aeba026e29c63dc5fdacc29c327a93be720ad40f0ce0e1af5885953d09b0bb

Aliases

arxiv: 1611.06959 · arxiv_version: 1611.06959v1 · doi: 10.48550/arxiv.1611.06959 · pith_short_12: 6WXLUATOFHDD · pith_short_16: 6WXLUATOFHDD3RP5 · pith_short_8: 6WXLUATO

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/6WXLUATOFHDD3RP5VTBJYMT2SO \
  | 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: f5aeba026e29c63dc5fdacc29c327a93be720ad40f0ce0e1af5885953d09b0bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dfd9b542680b2bab808d12d5a67550c3f6abd065433165df58c7dc06f47cbb9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-11-21T19:17:13Z",
    "title_canon_sha256": "d6a82149bd82572fdc53eba533e95324429b88a93c3b580f2f731af24845105b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.06959",
    "kind": "arxiv",
    "version": 1
  }
}