Pith Number

pith:H65TQPOW

pith:2017:H65TQPOWDFRXOPMOJOT5QQ2TWJ

not attested not anchored not stored refs pending

Optimization of the lowest eigenvalue for leaky star graphs

Pavel Exner, Vladimir Lotoreichik

arxiv:1701.06840 v2 · 2017-01-24 · math.SP · math-ph · math.MP · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H65TQPOWDFRXOPMOJOT5QQ2TWJ}

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	2026-05-18T00:12:14.368215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fbb383dd61963773d8e4ba7d84353b279dd59895a899008f495a54a36e90889

Aliases

arxiv: 1701.06840 · arxiv_version: 1701.06840v2 · doi: 10.48550/arxiv.1701.06840 · pith_short_12: H65TQPOWDFRX · pith_short_16: H65TQPOWDFRXOPMO · pith_short_8: H65TQPOW

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/H65TQPOWDFRXOPMOJOT5QQ2TWJ \
  | 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: 3fbb383dd61963773d8e4ba7d84353b279dd59895a899008f495a54a36e90889

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66713d48cc019d4486dedbedc731e036a99cbe0e87571c2259fa20898c180db9",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2017-01-24T12:38:04Z",
    "title_canon_sha256": "d7f1a8950a30a2b56fdb543303e95041e0321937d1fbc8587aceb64d350f52fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06840",
    "kind": "arxiv",
    "version": 2
  }
}