Pith Number

pith:3NFJK6MV

pith:2017:3NFJK6MVNAPGTYLYJNXI66STYC

not attested not anchored not stored refs pending

Quadratic growth conditions for convex matrix optimization problems associated with spectral functions

Chao Ding, Xinyuan Zhao, Ying Cui

arxiv:1702.03262 v3 · 2017-02-10 · 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{3NFJK6MVNAPGTYLYJNXI66STYC}

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	2026-05-18T00:45:01.244271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db4a957995681e69e1784b6e8f7a53c0abaf9c9c8810640c6dc073552c9c73d5

Aliases

arxiv: 1702.03262 · arxiv_version: 1702.03262v3 · doi: 10.48550/arxiv.1702.03262 · pith_short_12: 3NFJK6MVNAPG · pith_short_16: 3NFJK6MVNAPGTYLY · pith_short_8: 3NFJK6MV

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/3NFJK6MVNAPGTYLYJNXI66STYC \
  | 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: db4a957995681e69e1784b6e8f7a53c0abaf9c9c8810640c6dc073552c9c73d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e878da4ac518f7b3e170cf4ef504fbefa78101d7a1972bef4e106cbca1403341",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-02-10T17:30:50Z",
    "title_canon_sha256": "bd25472ac4233c9fd1bb7c6da7fa9fc6eb360a0d22d95d8e1e7b67c0c1869cc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03262",
    "kind": "arxiv",
    "version": 3
  }
}