Pith Number

pith:4NFDQYAV

pith:2018:4NFDQYAVD64EF6GCXO6Q3WNF2M

not attested not anchored not stored refs pending

Computing the Best Approximation Over the Intersection of a Polyhedral Set and the Doubly Nonnegative Cone

Defeng Sun, Kim-Chuan Toh, Ying Cui

arxiv:1803.06566 v1 · 2018-03-17 · 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{4NFDQYAVD64EF6GCXO6Q3WNF2M}

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	2026-05-18T00:20:45.577635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e34a3860151fb842f8c2bbbd0dd9a5d30772a36d2864317c547c29351a717dba

Aliases

arxiv: 1803.06566 · arxiv_version: 1803.06566v1 · doi: 10.48550/arxiv.1803.06566 · pith_short_12: 4NFDQYAVD64E · pith_short_16: 4NFDQYAVD64EF6GC · pith_short_8: 4NFDQYAV

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/4NFDQYAVD64EF6GCXO6Q3WNF2M \
  | 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: e34a3860151fb842f8c2bbbd0dd9a5d30772a36d2864317c547c29351a717dba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff6bddb00da66fda68be3f60d7c41cd3faa17ff30d96ebde4fde00f61dc7c87e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-03-17T20:12:03Z",
    "title_canon_sha256": "8ac636daa0bfbd2a3960852267072f818a88d11e139c0907286b5f115b514def"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06566",
    "kind": "arxiv",
    "version": 1
  }
}