Pith Number

pith:KKPEWBPN

pith:2019:KKPEWBPNRIJ3JW6SCMEDE25ZLC

not attested not anchored not stored refs pending

Cluster Developing 1-Bit Matrix Completion

Chengkun Zhang. Junbin Gao, Stephen Lu

arxiv:1904.03779 v1 · 2019-04-07 · 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{KKPEWBPNRIJ3JW6SCMEDE25ZLC}

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	2026-05-17T23:49:08.163830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

529e4b05ed8a13b4dbd21308326bb958b607c35f90805b03ecdeb2889393cf0c

Aliases

arxiv: 1904.03779 · arxiv_version: 1904.03779v1 · doi: 10.48550/arxiv.1904.03779 · pith_short_12: KKPEWBPNRIJ3 · pith_short_16: KKPEWBPNRIJ3JW6S · pith_short_8: KKPEWBPN

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/KKPEWBPNRIJ3JW6SCMEDE25ZLC \
  | 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: 529e4b05ed8a13b4dbd21308326bb958b607c35f90805b03ecdeb2889393cf0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c917ed3bc367d46f6ac753942820870f234055837fedd4a7a093397cd5d91b77",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-04-07T23:50:34Z",
    "title_canon_sha256": "0d6c990c08ab4fb2e0830ae647584ce16aa1e0ffd05f1eb5269d13a21f97d279"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03779",
    "kind": "arxiv",
    "version": 1
  }
}