Pith Number

pith:BE44UDZ6

pith:2018:BE44UDZ6AQRX7KSTS7OWNPT2O2

not attested not anchored not stored refs pending

An efficient, globally convergent method for optimization under uncertainty using adaptive model reduction and sparse grids

Drew P. Kouri, Kevin T. Carlberg, Matthew J. Zahr

arxiv:1811.00177 v2 · 2018-11-01 · math.OC · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BE44UDZ6AQRX7KSTS7OWNPT2O2}

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	2026-05-17T23:45:57.930814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0939ca0f3e04237faa5397dd66be7a76aae04ba6ad3f833402d6178249a8df6c

Aliases

arxiv: 1811.00177 · arxiv_version: 1811.00177v2 · doi: 10.48550/arxiv.1811.00177 · pith_short_12: BE44UDZ6AQRX · pith_short_16: BE44UDZ6AQRX7KST · pith_short_8: BE44UDZ6

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/BE44UDZ6AQRX7KSTS7OWNPT2O2 \
  | 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: 0939ca0f3e04237faa5397dd66be7a76aae04ba6ad3f833402d6178249a8df6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6f1a1a2e58244ad7dce10f8417837d7c31d04a9c0ba16624ec9055140b3a378",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-11-01T01:20:36Z",
    "title_canon_sha256": "8cebd873bb180c4f1f69e9b0d632cebc3e908ae182872e7230f02bc8cc96da5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.00177",
    "kind": "arxiv",
    "version": 2
  }
}