Pith Number

pith:4PXPMWVE

pith:2014:4PXPMWVEMVKFVNKQNNPMKGVGML

not attested not anchored not stored refs pending

Modeling an Augmented Lagrangian for Blackbox Constrained Optimization

Garth Wells, Genetha A. Gray, Herbert K.H. Lee, Pritam Ranjan, Robert B. Gramacy, Sebastien Le Digabel, Stefan M. Wild

arxiv:1403.4890 v3 · 2014-03-19 · stat.ME · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4PXPMWVEMVKFVNKQNNPMKGVGML}

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	2026-05-18T02:25:49.197994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3eef65aa465545ab5506b5ec51aa662da645e8f53d0c70c79988e9d61a51b4b

Aliases

arxiv: 1403.4890 · arxiv_version: 1403.4890v3 · doi: 10.48550/arxiv.1403.4890 · pith_short_12: 4PXPMWVEMVKF · pith_short_16: 4PXPMWVEMVKFVNKQ · pith_short_8: 4PXPMWVE

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/4PXPMWVEMVKFVNKQNNPMKGVGML \
  | 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: e3eef65aa465545ab5506b5ec51aa662da645e8f53d0c70c79988e9d61a51b4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "024beb6a2a90d30a18aba561c9289984f43f99a7f0a9bf04f64a7c76fce377c7",
    "cross_cats_sorted": [
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2014-03-19T17:36:37Z",
    "title_canon_sha256": "f682910bf89d051e4555677f3ef18d8695f70c9a2d32109f638e659a26ba535b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.4890",
    "kind": "arxiv",
    "version": 3
  }
}