Pith Number

pith:TT52SFNH

pith:2019:TT52SFNHCBQW55JGV76QECHEZ6

not attested not anchored not stored refs pending

Sample-Optimal Low-Rank Approximation of Distance Matrices

Ali Vakilian, David Woodruff, Piotr Indyk, Tal Wagner

arxiv:1906.00339 v1 · 2019-06-02 · cs.DS · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TT52SFNHCBQW55JGV76QECHEZ6}

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	2026-05-17T23:44:18.315936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cfba915a710616ef526affd0208e4cf832f0bc4d7f9c1a1c585bf321624c350

Aliases

arxiv: 1906.00339 · arxiv_version: 1906.00339v1 · doi: 10.48550/arxiv.1906.00339 · pith_short_12: TT52SFNHCBQW · pith_short_16: TT52SFNHCBQW55JG · pith_short_8: TT52SFNH

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/TT52SFNHCBQW55JGV76QECHEZ6 \
  | 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: 9cfba915a710616ef526affd0208e4cf832f0bc4d7f9c1a1c585bf321624c350

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7babc36c3d3a889190bd0e0abfccc9a815bb76e2604931b4ae9589ce23ec3760",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-06-02T04:15:17Z",
    "title_canon_sha256": "81f7d7488747ddc2488ef067dcc0d1fac0ca3a75d7c5d1106f15e8d0d85dbf2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.00339",
    "kind": "arxiv",
    "version": 1
  }
}