Pith Number

pith:M2EQOUYG

pith:2026:M2EQOUYGR24YPSWSB7O5Q4YJHG

not attested not anchored not stored refs pending

Lifting-Free Quadratic Sum-Of-Squares Programming

Gabriel F. Machado, Morgan Jones, Ross Drummond

arxiv:2607.13701 v1 · 2026-07-15 · math.OC · cs.SY · eess.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M2EQOUYGR24YPSWSB7O5Q4YJHG}

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	2026-07-16T01:23:01.753135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66890753068eb987cad20fddd8730939be25d3192d58108e1d0f335be9f22e36

Aliases

arxiv: 2607.13701 · arxiv_version: 2607.13701v1 · doi: 10.48550/arxiv.2607.13701 · pith_short_12: M2EQOUYGR24Y · pith_short_16: M2EQOUYGR24YPSWS · pith_short_8: M2EQOUYG

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/M2EQOUYGR24YPSWSB7O5Q4YJHG \
  | 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: 66890753068eb987cad20fddd8730939be25d3192d58108e1d0f335be9f22e36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2b779b9ea4f0a9e4914c601df879383cf1e2c24845d59af851f059ac02eee21",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-07-15T11:01:45Z",
    "title_canon_sha256": "62ef11c25f4da47a3be7f237de9a0cb9c3f18d257f68641c73a487d7a758a817"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.13701",
    "kind": "arxiv",
    "version": 1
  }
}