Pith Number

pith:OWPDWEC5

pith:2024:OWPDWEC5YEQSMRH4CGJBW2TARP

not attested not anchored not stored refs pending

Spurious local minima in nonconvex sum-of-squares optimization

Grigoriy Blekherman, Mauricio Velasco, Rainer Sinn, Shixuan Zhang

arxiv:2411.02208 v1 · 2024-11-04 · 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{OWPDWEC5YEQSMRH4CGJBW2TARP}

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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.

Cited by

1 paper in Pith

On quadratic persistence and Pythagoras numbers of totally real projective varieties

Receipt and verification

First computed	2026-07-05T09:30:43.412507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

759e3b105dc1212644fc11921b6a608bcad78aa5d88e3afc46863ff2cbc50343

Aliases

arxiv: 2411.02208 · arxiv_version: 2411.02208v1 · doi: 10.48550/arxiv.2411.02208 · pith_short_12: OWPDWEC5YEQS · pith_short_16: OWPDWEC5YEQSMRH4 · pith_short_8: OWPDWEC5

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/OWPDWEC5YEQSMRH4CGJBW2TARP \
  | 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: 759e3b105dc1212644fc11921b6a608bcad78aa5d88e3afc46863ff2cbc50343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dee076381a74fc4b58fb7be0f9350e68d38e2dafec3d24b75e06b3bd3607694e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2024-11-04T16:00:21Z",
    "title_canon_sha256": "c364344f762d52e2cecbeeafd31272fa2f5cc4de60778e3e756c9f856bb0acc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2411.02208",
    "kind": "arxiv",
    "version": 1
  }
}