Pith Number

pith:HM73HEEQ

pith:2014:HM73HEEQAWPGG5QJDR4T6JGPEG

not attested not anchored not stored refs pending

Bounded Real Lemma and structured singular value versus diagonal scaling: the free noncommutative setting

Gilbert J. Groenewald, Joseph A. Ball, Sanne ter Horst

arxiv:1408.0519 v1 · 2014-08-03 · 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{HM73HEEQAWPGG5QJDR4T6JGPEG}

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	2026-05-18T02:45:56.875112Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b3fb39090059e6376091c793f24cf21937b2979d6ea4fc039ce6c58bc11cfb8

Aliases

arxiv: 1408.0519 · arxiv_version: 1408.0519v1 · doi: 10.48550/arxiv.1408.0519 · pith_short_12: HM73HEEQAWPG · pith_short_16: HM73HEEQAWPGG5QJ · pith_short_8: HM73HEEQ

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/HM73HEEQAWPGG5QJDR4T6JGPEG \
  | 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: 3b3fb39090059e6376091c793f24cf21937b2979d6ea4fc039ce6c58bc11cfb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0defcae0e3ca49e5df11ca9f8f414ae0e60256b6aa5236ad1c6a316c45bb2d99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-08-03T17:44:56Z",
    "title_canon_sha256": "fc6799e8d8dbbd48ed6ef2ece8de51bc3421320c4ceef8db74f6c8bb22f8f99c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.0519",
    "kind": "arxiv",
    "version": 1
  }
}