Pith Number

pith:QIXQHVD3

pith:2026:QIXQHVD3P43K6R2HVRV6ETCIZA

not attested not anchored not stored refs pending

A derivative-free particle method for optimization in Hilbert spaces

Hicham Kouhkouh, Hui Huang

arxiv:2605.31565 v1 · 2026-05-29 · math.OC · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QIXQHVD3P43K6R2HVRV6ETCIZA}

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	2026-06-01T02:04:12.829473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

822f03d47b7f36af4747ac6be24c48c822f6ec03cd90b97497c46eb9e205b380

Aliases

arxiv: 2605.31565 · arxiv_version: 2605.31565v1 · doi: 10.48550/arxiv.2605.31565 · pith_short_12: QIXQHVD3P43K · pith_short_16: QIXQHVD3P43K6R2H · pith_short_8: QIXQHVD3

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/QIXQHVD3P43K6R2HVRV6ETCIZA \
  | 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: 822f03d47b7f36af4747ac6be24c48c822f6ec03cd90b97497c46eb9e205b380

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a81586dbf1836f4f5f257e2f22718c69388aad3e85b8827edc4ccf55fe9b9f82",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-05-29T17:30:52Z",
    "title_canon_sha256": "05ba6d9655931eaddc1b4af04a24848c6a551564ab74240de8d064506ea04ab8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.31565",
    "kind": "arxiv",
    "version": 1
  }
}