Pith Number

pith:LZIZKEC4

pith:2020:LZIZKEC4UDGHQWHIOE5LUFBI7O

not attested not anchored not stored refs pending

Optimal nonlinear damping control of second-order systems

Michael Ruderman

arxiv:2003.05670 v3 · 2020-03-12 · eess.SY · 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{LZIZKEC4UDGHQWHIOE5LUFBI7O}

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	2026-07-05T01:54:42.935844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e5195105ca0cc7858e8713aba1428fb914142974a08dc178ffe0cb4a360b971

Aliases

arxiv: 2003.05670 · arxiv_version: 2003.05670v3 · doi: 10.48550/arxiv.2003.05670 · pith_short_12: LZIZKEC4UDGH · pith_short_16: LZIZKEC4UDGHQWHI · pith_short_8: LZIZKEC4

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/LZIZKEC4UDGHQWHIOE5LUFBI7O \
  | 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: 5e5195105ca0cc7858e8713aba1428fb914142974a08dc178ffe0cb4a360b971

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bd4bbdf2f0021cbf0c7f54d201cc8d9f3e7f67d19c0bd95952818e75bc3bca2",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2020-03-12T09:07:09Z",
    "title_canon_sha256": "3e05a392ee0aed60d5043ee37ade3fa581da846fb02f8f4c03ed9aa7812f6792"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.05670",
    "kind": "arxiv",
    "version": 3
  }
}