Pith Number

pith:YW74FG3M

pith:2013:YW74FG3MNK7SLHJPNYSBYYZ6ER

not attested not anchored not stored refs pending

Dimensional Differences Between Faces of the Cones of Nonnegative Polynomials and Sums of Squares

Grigoriy Blekherman, Martina Kubitzke, Sadik Iliman

arxiv:1305.0642 v1 · 2013-05-03 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YW74FG3MNK7SLHJPNYSBYYZ6ER}

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	2026-05-18T03:26:33.125151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5bfc29b6c6abf259d2f6e241c633e24418768f786f2bead75f8682d03be5436

Aliases

arxiv: 1305.0642 · arxiv_version: 1305.0642v1 · doi: 10.48550/arxiv.1305.0642 · pith_short_12: YW74FG3MNK7S · pith_short_16: YW74FG3MNK7SLHJP · pith_short_8: YW74FG3M

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/YW74FG3MNK7SLHJPNYSBYYZ6ER \
  | 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: c5bfc29b6c6abf259d2f6e241c633e24418768f786f2bead75f8682d03be5436

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f16111de9edd2132f37a6b364c779b893e7396e533d66dbe8e82c29e7eb2887",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-05-03T08:52:33Z",
    "title_canon_sha256": "7c6a547aa30638e1e4a594e18f2cfa976a355325099adbb7d8cd23e68fed30e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0642",
    "kind": "arxiv",
    "version": 1
  }
}