Pith Number

pith:EV5MRVK2

pith:2018:EV5MRVK2A3AF2Z4ZIG5U7BRMZO

not attested not anchored not stored refs pending

Taylor approximation and variance reduction for PDE-constrained optimal control under uncertainty

Omar Ghattas, Peng Chen, Umberto Villa

arxiv:1804.04301 v3 · 2018-04-12 · 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{EV5MRVK2A3AF2Z4ZIG5U7BRMZO}

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	2026-05-17T23:50:28.245377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

257ac8d55a06c05d679941bb4f862ccbbd7bc2f7dbaeda355692d40075ce43c8

Aliases

arxiv: 1804.04301 · arxiv_version: 1804.04301v3 · doi: 10.48550/arxiv.1804.04301 · pith_short_12: EV5MRVK2A3AF · pith_short_16: EV5MRVK2A3AF2Z4Z · pith_short_8: EV5MRVK2

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/EV5MRVK2A3AF2Z4ZIG5U7BRMZO \
  | 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: 257ac8d55a06c05d679941bb4f862ccbbd7bc2f7dbaeda355692d40075ce43c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8acae8789cc4a5f8dced4f2131d152a9eadfa3f35a290aa84c6b153c49582f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-04-12T03:37:02Z",
    "title_canon_sha256": "b176bfba4d733b49ed7e6645807a17ac12a6815c496dfd468ceb0c77497d86c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04301",
    "kind": "arxiv",
    "version": 3
  }
}