Pith Number

pith:YQOS7CEC

pith:2015:YQOS7CECJALK4ZONGZ7CJ34VFX

not attested not anchored not stored refs pending

Solving Underdetermined Boundary Value Problems By Sequential Quadratic Programming

Jan Kuratko, Stefan Ratschan

arxiv:1512.09078 v3 · 2015-12-30 · 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{YQOS7CECJALK4ZONGZ7CJ34VFX}

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	2026-05-18T01:03:19.988114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c41d2f88824816ae65cd367e24ef952dfd634129987e4f0199b5107fada7e446

Aliases

arxiv: 1512.09078 · arxiv_version: 1512.09078v3 · doi: 10.48550/arxiv.1512.09078 · pith_short_12: YQOS7CECJALK · pith_short_16: YQOS7CECJALK4ZON · pith_short_8: YQOS7CEC

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/YQOS7CECJALK4ZONGZ7CJ34VFX \
  | 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: c41d2f88824816ae65cd367e24ef952dfd634129987e4f0199b5107fada7e446

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "741101e41ce78abf5555a755c639a1dbb84be14d283dad7bad097def80abe04f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-12-30T19:38:44Z",
    "title_canon_sha256": "68a3c858a2765b7b39008800db65826798cca7bf9f23ca5cbcc681b25097768b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.09078",
    "kind": "arxiv",
    "version": 3
  }
}