Pith Number

pith:L6JA2GG7

pith:2016:L6JA2GG7OFG4N42MYGBPXTRLQ4

not attested not anchored not stored refs pending

Disciplined Convex-Concave Programming

Stephen Boyd, Steven Diamond, Xinyue Shen, Yuantao Gu

arxiv:1604.02639 v1 · 2016-04-10 · 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{L6JA2GG7OFG4N42MYGBPXTRLQ4}

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	2026-05-18T01:17:22.548188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f920d18df714dc6f34cc182fbce2b873b988fbe19b2d6f7228d2f25fd065413

Aliases

arxiv: 1604.02639 · arxiv_version: 1604.02639v1 · doi: 10.48550/arxiv.1604.02639 · pith_short_12: L6JA2GG7OFG4 · pith_short_16: L6JA2GG7OFG4N42M · pith_short_8: L6JA2GG7

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/L6JA2GG7OFG4N42MYGBPXTRLQ4 \
  | 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: 5f920d18df714dc6f34cc182fbce2b873b988fbe19b2d6f7228d2f25fd065413

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdd2bc6340230f4867a11de15c8bd7f3e40004a6fb25ae3c2218be29ed2472b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-04-10T05:12:20Z",
    "title_canon_sha256": "08f61648b6fb855a8d1e0e92dd8187b79922730f2431215a85abf268f2f11c51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02639",
    "kind": "arxiv",
    "version": 1
  }
}