Pith Number

pith:EK7DEWN5

pith:2019:EK7DEWN5AGW5MYHV5CAHQOHOD2

not attested not anchored not stored refs pending

Towards Velocity Turnpikes in Optimal Control of Mechanical Systems

Karl Worthmann, Kathrin Fla{\ss}kamp, Sina Ober-Bl\"obaum, Timm Faulwasser

arxiv:1907.01786 v1 · 2019-07-03 · 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{EK7DEWN5AGW5MYHV5CAHQOHOD2}

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	2026-05-17T23:41:35.089646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22be3259bd01add660f5e8807838ee1e9c2ea48dc188cbb8261bf6c1f063c5d7

Aliases

arxiv: 1907.01786 · arxiv_version: 1907.01786v1 · doi: 10.48550/arxiv.1907.01786 · pith_short_12: EK7DEWN5AGW5 · pith_short_16: EK7DEWN5AGW5MYHV · pith_short_8: EK7DEWN5

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/EK7DEWN5AGW5MYHV5CAHQOHOD2 \
  | 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: 22be3259bd01add660f5e8807838ee1e9c2ea48dc188cbb8261bf6c1f063c5d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "664baeb3e159aa1278674fe2218df69f52de3af3d3eb366ce3da9122688b4f8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-07-03T08:12:34Z",
    "title_canon_sha256": "065f4637b8aa5c78253d65116cf717544336e7da9a2d7b802eaf58edb3f9e3d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01786",
    "kind": "arxiv",
    "version": 1
  }
}