Pith Number

pith:5TTPLCLR

pith:2009:5TTPLCLRR5FM5D7HMZX7DOXPFT

not attested not anchored not stored refs pending

A convex polynomial that is not sos-convex

Amir Ali Ahmadi, Pablo A. Parrilo

arxiv:0903.1287 v1 · 2009-03-06 · 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{5TTPLCLRR5FM5D7HMZX7DOXPFT}

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	2026-05-18T03:45:23.509116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ece6f589718f4ace8fe7666ff1baef2ccab0c848bedea2cc3ec09746f4742cc1

Aliases

arxiv: 0903.1287 · arxiv_version: 0903.1287v1 · doi: 10.48550/arxiv.0903.1287 · pith_short_12: 5TTPLCLRR5FM · pith_short_16: 5TTPLCLRR5FM5D7H · pith_short_8: 5TTPLCLR

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/5TTPLCLRR5FM5D7HMZX7DOXPFT \
  | 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: ece6f589718f4ace8fe7666ff1baef2ccab0c848bedea2cc3ec09746f4742cc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ce57d1bc68026628c2fbf848b0a957470d7d95dda5f8c54d59b97cd3ddc7e62",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2009-03-06T20:50:13Z",
    "title_canon_sha256": "72a89e40d0030e9fecb686b472ae395f9627531013b406c2ffdc695707b37e80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1287",
    "kind": "arxiv",
    "version": 1
  }
}