Pith Number

pith:3VEZSSVT

pith:2019:3VEZSSVTWL4SBTUFPSJRU6HJUS

not attested not anchored not stored refs pending

A survey of hidden convex optimization

Yong Xia

arxiv:1902.10921 v1 · 2019-02-28 · 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{3VEZSSVTWL4SBTUFPSJRU6HJUS}

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	2026-05-17T23:52:26.361555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd49994ab3b2f920ce857c931a78e9a487ace9f9af4a57b99285a993e9b8dd75

Aliases

arxiv: 1902.10921 · arxiv_version: 1902.10921v1 · doi: 10.48550/arxiv.1902.10921 · pith_short_12: 3VEZSSVTWL4S · pith_short_16: 3VEZSSVTWL4SBTUF · pith_short_8: 3VEZSSVT

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/3VEZSSVTWL4SBTUFPSJRU6HJUS \
  | 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: dd49994ab3b2f920ce857c931a78e9a487ace9f9af4a57b99285a993e9b8dd75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5eff64d24898c9d209e4022d23845b3404f61d1c6568a29df0afa461d010b948",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-02-28T06:35:23Z",
    "title_canon_sha256": "e0e32dcac43db702a0866ef83c6f2a188d55ca578107cf8982318f751b7df3b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10921",
    "kind": "arxiv",
    "version": 1
  }
}