Pith Number

pith:HKQGWUZC

pith:2017:HKQGWUZCMXMHYDP5YNATEFEKGN

not attested not anchored not stored refs pending

A Joint Tikhonov Regularization and Augmented Lagrange Approach for Ill-posed State Constrained Control Problems with Sparse Controls

Frank P\"orner, Veronika Karl

arxiv:1707.08460 v2 · 2017-07-26 · 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{HKQGWUZCMXMHYDP5YNATEFEKGN}

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	2026-05-18T00:38:12.612542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3aa06b532265d87c0dfdc34132148a334a8901f760e2bdfaa0dadd7ca248c39c

Aliases

arxiv: 1707.08460 · arxiv_version: 1707.08460v2 · doi: 10.48550/arxiv.1707.08460 · pith_short_12: HKQGWUZCMXMH · pith_short_16: HKQGWUZCMXMHYDP5 · pith_short_8: HKQGWUZC

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/HKQGWUZCMXMHYDP5YNATEFEKGN \
  | 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: 3aa06b532265d87c0dfdc34132148a334a8901f760e2bdfaa0dadd7ca248c39c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fea1443ca8845e43ef0989e107c0b68a77b2552bae4f597efe90ef4e00288357",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-07-26T14:24:53Z",
    "title_canon_sha256": "de533f806f5936d1d05cee0f02554e214e33a07b837ffa1683a56967d77ab2c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.08460",
    "kind": "arxiv",
    "version": 2
  }
}