Pith Number

pith:PUGKX4WS

pith:2019:PUGKX4WSJYNPN2P4OSWU2NZNPA

not attested not anchored not stored refs pending

Robust Contraction Analysis of Nonlinear Systems via Differential IQC

Ian R. Manchester, Ruigang Wang

arxiv:1903.08806 v1 · 2019-03-21 · 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{PUGKX4WSJYNPN2P4OSWU2NZNPA}

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	2026-05-17T23:50:43.877388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d0cabf2d24e1af6e9fc74ad4d372d7821ddd42484543fc3be3f8a9432663ff7

Aliases

arxiv: 1903.08806 · arxiv_version: 1903.08806v1 · doi: 10.48550/arxiv.1903.08806 · pith_short_12: PUGKX4WSJYNP · pith_short_16: PUGKX4WSJYNPN2P4 · pith_short_8: PUGKX4WS

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/PUGKX4WSJYNPN2P4OSWU2NZNPA \
  | 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: 7d0cabf2d24e1af6e9fc74ad4d372d7821ddd42484543fc3be3f8a9432663ff7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f80e4d1aa97462d6b8cc2d2b5aeef677669c2c920a03f085e341090955832d59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2019-03-21T02:27:40Z",
    "title_canon_sha256": "1230c2d7d2a7436597e5d1c87005336505ab850680415e94e0c8c5ae70417486"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08806",
    "kind": "arxiv",
    "version": 1
  }
}