Pith Number

pith:X7U3HSCK

pith:2011:X7U3HSCKZJUZKA2ZL3GJJ4MHV3

not attested not anchored not stored refs pending

Univariate global optimization with multiextremal non-differentiable constraints without penalty functions

Yaroslav D. Sergeyev

arxiv:1107.5269 v1 · 2011-07-26 · math.OC · cs.NA · math.NA · physics.comp-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{X7U3HSCKZJUZKA2ZL3GJJ4MHV3}

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	2026-05-18T04:16:52.616687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfe9b3c84aca699503595ecc94f187aef1a8df113e8ab1fbf69da7e81091435f

Aliases

arxiv: 1107.5269 · arxiv_version: 1107.5269v1 · doi: 10.48550/arxiv.1107.5269 · pith_short_12: X7U3HSCKZJUZ · pith_short_16: X7U3HSCKZJUZKA2Z · pith_short_8: X7U3HSCK

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/X7U3HSCKZJUZKA2ZL3GJJ4MHV3 \
  | 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: bfe9b3c84aca699503595ecc94f187aef1a8df113e8ab1fbf69da7e81091435f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4af548dcc5e632dfa3b3d3d7b2fe63b1f6ad288104df365426fcd37154e75d3c",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2011-07-26T17:28:17Z",
    "title_canon_sha256": "80f905786da1b3d92ca83370d90afcbf7efca8236ed5b81866fbdf6a7e25d236"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5269",
    "kind": "arxiv",
    "version": 1
  }
}