Pith Number

pith:ZQFMYQMT

pith:2013:ZQFMYQMTPSRWHICNF72EUQ2F43

not attested not anchored not stored refs pending

A case of mu-synthesis as a quadratic semidefinite program

Jim Agler, N. J. Young, Z. A. Lykova

arxiv:1303.5342 v1 · 2013-03-21 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZQFMYQMTPSRWHICNF72EUQ2F43}

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	2026-05-18T03:30:13.126093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc0acc41937ca363a04d2ff44a4345e6ce93e4aa3258c348c693b41457716025

Aliases

arxiv: 1303.5342 · arxiv_version: 1303.5342v1 · doi: 10.48550/arxiv.1303.5342 · pith_short_12: ZQFMYQMTPSRW · pith_short_16: ZQFMYQMTPSRWHICN · pith_short_8: ZQFMYQMT

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/ZQFMYQMTPSRWHICNF72EUQ2F43 \
  | 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: cc0acc41937ca363a04d2ff44a4345e6ce93e4aa3258c348c693b41457716025

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6263d861158da823cce73ae324d56c9ee14cf164ffd9764b8c017e508f527c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2013-03-21T17:39:03Z",
    "title_canon_sha256": "027d2eca86251c7cebcfe8cf891a8ad734c37dfbcc406d43acc0d64336a564ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5342",
    "kind": "arxiv",
    "version": 1
  }
}