Pith Number

pith:B3B6ULQI

pith:2022:B3B6ULQIBKQGVK2JEPCLNSU4CZ

not attested not anchored not stored refs pending

A Light-Weight Multi-Objective Asynchronous Hyper-Parameter Optimizer

Alex Ulitsky, Cristian Matache, Dylan Reuter, Gabriel Maher, Leonid Kopman, Mykel Kochenderfer, Slava Yukhymuk, Stephen Boyd

arxiv:2202.07735 v2 · 2022-02-15 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B3B6ULQIBKQGVK2JEPCLNSU4CZ}

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	2026-07-05T04:55:37.926965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ec3ea2e080aa06aab4923c4b6ca9c1641d2da88ab6276c62d4ed9d7914b2e12

Aliases

arxiv: 2202.07735 · arxiv_version: 2202.07735v2 · doi: 10.48550/arxiv.2202.07735 · pith_short_12: B3B6ULQIBKQG · pith_short_16: B3B6ULQIBKQGVK2J · pith_short_8: B3B6ULQI

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/B3B6ULQIBKQGVK2JEPCLNSU4CZ \
  | 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: 0ec3ea2e080aa06aab4923c4b6ca9c1641d2da88ab6276c62d4ed9d7914b2e12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f13c2295498c7adfa190639c873a441ed4723b1de93047ea2b995724009e7475",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-02-15T21:30:38Z",
    "title_canon_sha256": "1dcc4a1958ea8eab9deaac46f786c84fb8557f8b637c3ef6226721853c8ed8d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.07735",
    "kind": "arxiv",
    "version": 2
  }
}