Pith Number

pith:KMWAW3NS

pith:2019:KMWAW3NS4X2RJAA3YXVELMCGTI

not attested not anchored not stored refs pending

Visible points, the separation problem, and applications to MINLP

Felipe Serrano

arxiv:1907.07909 v1 · 2019-07-18 · 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{KMWAW3NS4X2RJAA3YXVELMCGTI}

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	2026-05-17T23:40:15.731296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

532c0b6db2e5f514801bc5ea45b0469a17d9dea2cf8a2039ef045a0abcffad4d

Aliases

arxiv: 1907.07909 · arxiv_version: 1907.07909v1 · doi: 10.48550/arxiv.1907.07909 · pith_short_12: KMWAW3NS4X2R · pith_short_16: KMWAW3NS4X2RJAA3 · pith_short_8: KMWAW3NS

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/KMWAW3NS4X2RJAA3YXVELMCGTI \
  | 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: 532c0b6db2e5f514801bc5ea45b0469a17d9dea2cf8a2039ef045a0abcffad4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24c914813c6135affc6aa8e90595d4535ac523e939ae25482a3a4c2ca0a1e85a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-07-18T07:22:15Z",
    "title_canon_sha256": "fc6dcc7fe9b125c7b23d1582ff5e1810e49ec5bda29bf9631870d5a068b37c62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.07909",
    "kind": "arxiv",
    "version": 1
  }
}