Pith Number

pith:D73ABW7W

pith:2018:D73ABW7WTBXEIBHJLE454PUMKP

not attested not anchored not stored refs pending

Derivative-Free Optimization of Noisy Functions via Quasi-Newton Methods

Albert S. Berahas, Jorge Nocedal, Richard H. Byrd

arxiv:1803.10173 v2 · 2018-03-27 · 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{D73ABW7WTBXEIBHJLE454PUMKP}

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	2026-05-17T23:56:48.195005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ff600dbf6986e4404e95939de3e8c53f13471291cbf628da23590e82dae7b43

Aliases

arxiv: 1803.10173 · arxiv_version: 1803.10173v2 · doi: 10.48550/arxiv.1803.10173 · pith_short_12: D73ABW7WTBXE · pith_short_16: D73ABW7WTBXEIBHJ · pith_short_8: D73ABW7W

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/D73ABW7WTBXEIBHJLE454PUMKP \
  | 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: 1ff600dbf6986e4404e95939de3e8c53f13471291cbf628da23590e82dae7b43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b09624dd9123b0cabf4e0fb8dd5c3b5dbcb460234dd50c21018c9727c5f91ebe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-03-27T16:39:39Z",
    "title_canon_sha256": "a41c58928a7473af919ac8992542a3c5222955d8328f019351aac8d15665118e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.10173",
    "kind": "arxiv",
    "version": 2
  }
}