Pith Number

pith:VOWN4JF2

pith:2014:VOWN4JF24OQ7FDXSXTH4EVIIM6

not attested not anchored not stored refs pending

Quantized Matrix Completion for Personalized Learning

Andrew S. Lan, Christoph Studer, Richard G. Baraniuk

arxiv:1412.5968 v1 · 2014-12-18 · stat.ML · 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{VOWN4JF24OQ7FDXSXTH4EVIIM6}

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	2026-05-18T02:30:55.860547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abacde24bae3a1f28ef2bccfc2550867b76b7b17d33ac566f2c67d5ce3429732

Aliases

arxiv: 1412.5968 · arxiv_version: 1412.5968v1 · doi: 10.48550/arxiv.1412.5968 · pith_short_12: VOWN4JF24OQ7 · pith_short_16: VOWN4JF24OQ7FDXS · pith_short_8: VOWN4JF2

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/VOWN4JF24OQ7FDXSXTH4EVIIM6 \
  | 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: abacde24bae3a1f28ef2bccfc2550867b76b7b17d33ac566f2c67d5ce3429732

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b857f82df4883b8cbddac5f5801904c6e2d1c8650f08dd401f6e7554287b20d",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2014-12-18T17:48:17Z",
    "title_canon_sha256": "b3f982c22a6762e2ae07782c02596eb4b95a913098c0e899518b41cff1ebeaaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.5968",
    "kind": "arxiv",
    "version": 1
  }
}