Pith Number

pith:S26VJGUO

pith:2017:S26VJGUOUJ5X2PWRTL23OUTBIL

not attested not anchored not stored refs pending

Global Optimality in Low-rank Matrix Optimization

Gongguo Tang, Michael B. Wakin, Qiuwei Li, Zhihui Zhu

arxiv:1702.07945 v3 · 2017-02-25 · cs.IT · math.IT · 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{S26VJGUOUJ5X2PWRTL23OUTBIL}

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	2026-05-18T00:11:43.946984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96bd549a8ea27b7d3ed19af5b7526142dcdfea8728c5cfcd0fea66b40ae35d54

Aliases

arxiv: 1702.07945 · arxiv_version: 1702.07945v3 · doi: 10.48550/arxiv.1702.07945 · pith_short_12: S26VJGUOUJ5X · pith_short_16: S26VJGUOUJ5X2PWR · pith_short_8: S26VJGUO

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/S26VJGUOUJ5X2PWRTL23OUTBIL \
  | 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: 96bd549a8ea27b7d3ed19af5b7526142dcdfea8728c5cfcd0fea66b40ae35d54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b79a8e0796955bbb5ada4bc187854cd3f68019bc137303d426ed9bcb638c7afc",
    "cross_cats_sorted": [
      "math.IT",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-02-25T20:49:05Z",
    "title_canon_sha256": "a70bd6a7543a7a18e0a1056b91eb6c361500a60829f2cd048ff16f6a63a408c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07945",
    "kind": "arxiv",
    "version": 3
  }
}