Pith Number

pith:ZBFTN4PM

pith:2017:ZBFTN4PMUC3QZOVJTEJK34JV2K

not attested not anchored not stored refs pending

Approximation Algorithms for $\ell_0$-Low Rank Approximation

David P. Woodruff, Karl Bringmann, Pavel Kolev

arxiv:1710.11253 v2 · 2017-10-30 · cs.DS · cs.DM · cs.LG · 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{ZBFTN4PMUC3QZOVJTEJK34JV2K}

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	2026-05-18T00:04:30.569194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c84b36f1eca0b70cbaa99912adf135d2972c90278d05cbc97f6d8a38185f1b31

Aliases

arxiv: 1710.11253 · arxiv_version: 1710.11253v2 · doi: 10.48550/arxiv.1710.11253 · pith_short_12: ZBFTN4PMUC3Q · pith_short_16: ZBFTN4PMUC3QZOVJ · pith_short_8: ZBFTN4PM

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/ZBFTN4PMUC3QZOVJTEJK34JV2K \
  | 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: c84b36f1eca0b70cbaa99912adf135d2972c90278d05cbc97f6d8a38185f1b31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50bedcd023d13de86567a43e6cb96ba47d2e53979f250babc5edadd651f9cdb1",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-10-30T21:49:48Z",
    "title_canon_sha256": "b0e8e926e7d8101f5a69b2efcacbf8d26acc78c2b6e803c4d3d17aedaedfdf2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.11253",
    "kind": "arxiv",
    "version": 2
  }
}