Pith Number

pith:J24RN2NZ

pith:2013:J24RN2NZMCD4VXGZPARQYMEMBV

not attested not anchored not stored refs pending

The S-Procedure via Dual Cone Calculus

Raphael Hauser

arxiv:1305.2444 v1 · 2013-05-10 · 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{J24RN2NZMCD4VXGZPARQYMEMBV}

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	2026-05-18T03:25:57.847178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4eb916e9b96087cadcd978230c308c0d50737c0a3329e6d126b86248a2019901

Aliases

arxiv: 1305.2444 · arxiv_version: 1305.2444v1 · doi: 10.48550/arxiv.1305.2444 · pith_short_12: J24RN2NZMCD4 · pith_short_16: J24RN2NZMCD4VXGZ · pith_short_8: J24RN2NZ

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/J24RN2NZMCD4VXGZPARQYMEMBV \
  | 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: 4eb916e9b96087cadcd978230c308c0d50737c0a3329e6d126b86248a2019901

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32192d8d60f22edf67bcf77a2e9c85ae3999f78c7074fc6fcead6d40d379ab70",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-05-10T21:20:00Z",
    "title_canon_sha256": "6294d5d4df1e27caf83788e78b4a7a87c770126019a8dcffb1ce694b572b6fd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2444",
    "kind": "arxiv",
    "version": 1
  }
}