Pith Number

pith:7HEZJ7T5

pith:2019:7HEZJ7T5OPTBHHCR63QFYV62HW

not attested not anchored not stored refs pending

Simulated annealing with hit-and-run for convex optimization: rigorous complexity analysis and practical perspectives for copositive programming

Etienne de Klerk, Riley Badenbroek

arxiv:1907.02368 v1 · 2019-07-04 · 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{7HEZJ7T5OPTBHHCR63QFYV62HW}

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	2026-05-17T23:41:28.802769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9c994fe7d73e6139c51f6e05c57da3db97dae944fe19e77021cebe768936514

Aliases

arxiv: 1907.02368 · arxiv_version: 1907.02368v1 · doi: 10.48550/arxiv.1907.02368 · pith_short_12: 7HEZJ7T5OPTB · pith_short_16: 7HEZJ7T5OPTBHHCR · pith_short_8: 7HEZJ7T5

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/7HEZJ7T5OPTBHHCR63QFYV62HW \
  | 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: f9c994fe7d73e6139c51f6e05c57da3db97dae944fe19e77021cebe768936514

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b00dc8acbc312b2a5f69348362c905b48522e145fefe3346118f2434a1cdf02f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-07-04T12:36:53Z",
    "title_canon_sha256": "726b155e33458acef61a788863882bb86e953a8f5a6af03bc9a010929e5b604a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02368",
    "kind": "arxiv",
    "version": 1
  }
}