Pith Number

pith:5ZHXQ6NT

pith:2013:5ZHXQ6NTANCJIUVQ3SA7IE7BPP

not attested not anchored not stored refs pending

Minimum $n$-Rank Approximation via Iterative Hard Thresholding

Lei Yang, Min Zhang, Zheng-Hai Huang

arxiv:1311.4291 v2 · 2013-11-18 · math.OC · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5ZHXQ6NTANCJIUVQ3SA7IE7BPP}

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	2026-05-18T02:54:39.371963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee4f7879b303449452b0dc81f413e17be2c4fa447ccc064cbe131ae67c4b62aa

Aliases

arxiv: 1311.4291 · arxiv_version: 1311.4291v2 · doi: 10.48550/arxiv.1311.4291 · pith_short_12: 5ZHXQ6NTANCJ · pith_short_16: 5ZHXQ6NTANCJIUVQ · pith_short_8: 5ZHXQ6NT

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/5ZHXQ6NTANCJIUVQ3SA7IE7BPP \
  | 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: ee4f7879b303449452b0dc81f413e17be2c4fa447ccc064cbe131ae67c4b62aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50fc51765048998a7a814a29178497cc9a3a1f44d46361d8513d80ef67fbf82c",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-11-18T08:33:00Z",
    "title_canon_sha256": "3437816b86dbad16bd8d088183e25e35ca672967b792568b883bce1fa9271ee0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4291",
    "kind": "arxiv",
    "version": 2
  }
}