Pith Number

pith:QFB6D75K

pith:2014:QFB6D75K56KGSFZCMIKUWCZZI5

not attested not anchored not stored refs pending

An O(log N) Parallel Algorithm for Newton Step Computation in Model Predictive Control

Daniel Axehill, Isak Nielsen

arxiv:1401.7882 v1 · 2014-01-30 · 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{QFB6D75K56KGSFZCMIKUWCZZI5}

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	2026-05-18T03:00:38.073639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8143e1ffaaef9469172262154b0b3947743c305a14b41d08980329f377c258fc

Aliases

arxiv: 1401.7882 · arxiv_version: 1401.7882v1 · doi: 10.48550/arxiv.1401.7882 · pith_short_12: QFB6D75K56KG · pith_short_16: QFB6D75K56KGSFZC · pith_short_8: QFB6D75K

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/QFB6D75K56KGSFZCMIKUWCZZI5 \
  | 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: 8143e1ffaaef9469172262154b0b3947743c305a14b41d08980329f377c258fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c16a2054924a343a5470e76fd1b7d2af94980f7f2bfee96703c95baa5d8325ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-01-30T15:29:48Z",
    "title_canon_sha256": "f4ed41cd2236d18de3af7103dfe14b1d7d5475877ff0e88871605b2018b5af7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7882",
    "kind": "arxiv",
    "version": 1
  }
}