Pith Number

pith:WWU4HWRK

pith:2018:WWU4HWRKW6REZUGVAAYXUE3XD3

not attested not anchored not stored refs pending

On the Computation of Optimal Control Problems with Terminal Inequality Constraint via Variation Evolution

Sheng Zhang, Wei-Qi Qian, Yan-Qing Chenq

arxiv:1801.07395 v1 · 2018-01-21 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WWU4HWRKW6REZUGVAAYXUE3XD3}

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	2026-05-18T00:25:12.926285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5a9c3da2ab7a24cd0d500317a13771ed14bb81cdd1cf1ed5100f810499c2f33

Aliases

arxiv: 1801.07395 · arxiv_version: 1801.07395v1 · doi: 10.48550/arxiv.1801.07395 · pith_short_12: WWU4HWRKW6RE · pith_short_16: WWU4HWRKW6REZUGV · pith_short_8: WWU4HWRK

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/WWU4HWRKW6REZUGVAAYXUE3XD3 \
  | 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: b5a9c3da2ab7a24cd0d500317a13771ed14bb81cdd1cf1ed5100f810499c2f33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47ed378310e01f67a11b12e380a495aa4527e11fc76099196c0f68b5dec59f69",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2018-01-21T00:08:16Z",
    "title_canon_sha256": "7adb57ed307929652c80e14ecebcf8bf54b699c78baa338a777778ab5bd9eadb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07395",
    "kind": "arxiv",
    "version": 1
  }
}