Pith Number

pith:SM6LJW37

pith:2012:SM6LJW37WD4DNEO6UY6JGPL2ET

not attested not anchored not stored refs pending

LMI Representations of Convex Semialgebraic Sets and Determinantal Representations of Algebraic Hypersurfaces: Past, Present, and Future

Victor Vinnikov

arxiv:1205.2286 v1 · 2012-05-10 · 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{SM6LJW37WD4DNEO6UY6JGPL2ET}

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	2026-05-18T03:55:56.678628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

933cb4db7fb0f83691dea63c933d7a24ea5d297dd39803db749e3d2717cd1050

Aliases

arxiv: 1205.2286 · arxiv_version: 1205.2286v1 · doi: 10.48550/arxiv.1205.2286 · pith_short_12: SM6LJW37WD4D · pith_short_16: SM6LJW37WD4DNEO6 · pith_short_8: SM6LJW37

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/SM6LJW37WD4DNEO6UY6JGPL2ET \
  | 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: 933cb4db7fb0f83691dea63c933d7a24ea5d297dd39803db749e3d2717cd1050

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e86d57db46c86992999bf8683d31835d012b432e5248dff00a03d20337496d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-05-10T15:01:04Z",
    "title_canon_sha256": "c320f3a18f3cd1fdf34beda0a184471f285251d864069e68c961d4b30d456fd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2286",
    "kind": "arxiv",
    "version": 1
  }
}