Pith Number

pith:TM2QHSQV

pith:2009:TM2QHSQVONZUCOX4B3LMCS2LLA

not attested not anchored not stored refs pending

Polynomial Matrix Inequality and Semidefinite Representation

Jiawang Nie

arxiv:0908.0364 v2 · 2009-08-03 · 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{TM2QHSQVONZUCOX4B3LMCS2LLA}

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	2026-05-18T04:25:37.952085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b3503ca157373413afc0ed6c14b4b582967346a2e365cd9270d6b30148e57a1

Aliases

arxiv: 0908.0364 · arxiv_version: 0908.0364v2 · doi: 10.48550/arxiv.0908.0364 · pith_short_12: TM2QHSQVONZU · pith_short_16: TM2QHSQVONZUCOX4 · pith_short_8: TM2QHSQV

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/TM2QHSQVONZUCOX4B3LMCS2LLA \
  | 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: 9b3503ca157373413afc0ed6c14b4b582967346a2e365cd9270d6b30148e57a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5699bf92477d9c33aad891cadb0c8472acda4936902cf8f9aff0b5b8523de76a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2009-08-03T23:06:39Z",
    "title_canon_sha256": "0d96b1392fc917e3590e02e804af77806895638ebcdae884b6393edcfacedbc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0364",
    "kind": "arxiv",
    "version": 2
  }
}