Pith Number

pith:4NI5PMDO

pith:2017:4NI5PMDOQDDGTQZ3H6T3Q5SWAV

not attested not anchored not stored refs pending

On Approximation Guarantees for Greedy Low Rank Optimization

Alexandros G. Dimakis, Ethan Elenberg, Rajiv Khanna, Sahand Negahban

arxiv:1703.02721 v1 · 2017-03-08 · stat.ML · cs.IT · cs.LG · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4NI5PMDOQDDGTQZ3H6T3Q5SWAV}

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	2026-05-18T00:49:05.787838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e351d7b06e80c669c33b3fa7b87656055830f85e714bf1aab65f30430c4dc44f

Aliases

arxiv: 1703.02721 · arxiv_version: 1703.02721v1 · doi: 10.48550/arxiv.1703.02721 · pith_short_12: 4NI5PMDOQDDG · pith_short_16: 4NI5PMDOQDDGTQZ3 · pith_short_8: 4NI5PMDO

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/4NI5PMDOQDDGTQZ3H6T3Q5SWAV \
  | 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: e351d7b06e80c669c33b3fa7b87656055830f85e714bf1aab65f30430c4dc44f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "085b58c98d72b6aeb01cc5d9ad8e6c05ab1288f19222594c7b4464b17ed772fc",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-03-08T06:20:10Z",
    "title_canon_sha256": "cc10797adc25f5bcff69d6c54614f27bcd3dbb8fcec4dfdaef4e1c7678b0cd5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02721",
    "kind": "arxiv",
    "version": 1
  }
}