Pith Number

pith:OMMMIEY4

pith:2020:OMMMIEY4J2EYXZORM2LRAQSY7Z

not attested not anchored not stored refs pending

Effective and Sparse Count-Sketch via k-means clustering

Liang Lan, Yuhan Wang, Zijian Lei

arxiv:2011.12046 v2 · 2020-11-24 · 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{OMMMIEY4J2EYXZORM2LRAQSY7Z}

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	2026-07-05T01:54:49.342270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7318c4131c4e898be5d16697104258fe4be11928143614f568b3b6635192873b

Aliases

arxiv: 2011.12046 · arxiv_version: 2011.12046v2 · doi: 10.48550/arxiv.2011.12046 · pith_short_12: OMMMIEY4J2EY · pith_short_16: OMMMIEY4J2EYXZOR · pith_short_8: OMMMIEY4

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/OMMMIEY4J2EYXZORM2LRAQSY7Z \
  | 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: 7318c4131c4e898be5d16697104258fe4be11928143614f568b3b6635192873b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49bd19e5ccaf19785150fe9b9ee736d6afa6a7f6903be5a0cbf291e4805ea37c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-11-24T11:44:02Z",
    "title_canon_sha256": "3c35403d1b95f3397f716017524ff0cfee1a36d489f9ddf0b973a243ee3bb54b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.12046",
    "kind": "arxiv",
    "version": 2
  }
}