Pith Number

pith:EQW7ZGO2

pith:2020:EQW7ZGO2MCMUNYY7NM2FHI6PTS

not attested not anchored not stored refs pending

Learning control for polynomial systems using sum of squares relaxations

Claudio De Persis, Meichen Guo, Pietro Tesi

arxiv:2004.00850 v2 · 2020-04-02 · 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{EQW7ZGO2MCMUNYY7NM2FHI6PTS}

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	2026-07-05T01:39:42.913040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

242dfc99da609946e31f6b3453a3cf9c88c8d7be16c98a2250cce321776f941f

Aliases

arxiv: 2004.00850 · arxiv_version: 2004.00850v2 · doi: 10.48550/arxiv.2004.00850 · pith_short_12: EQW7ZGO2MCMU · pith_short_16: EQW7ZGO2MCMUNYY7 · pith_short_8: EQW7ZGO2

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/EQW7ZGO2MCMUNYY7NM2FHI6PTS \
  | 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: 242dfc99da609946e31f6b3453a3cf9c88c8d7be16c98a2250cce321776f941f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d43f3850c09d84b97b5e78f324a1a5e6aeb2505cba08f7c88f441e8a5f6801b",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2020-04-02T07:40:11Z",
    "title_canon_sha256": "ee18cf8b5b7f31611b72dd14996ef2ce058a5ef3a67e6c2df46a53309f1f0d4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.00850",
    "kind": "arxiv",
    "version": 2
  }
}