Pith Number

pith:EPCEPYMW

pith:2012:EPCEPYMWBLBLQUIFRO5AAE7NRY

not attested not anchored not stored refs pending

Parallel Matrix Factorization for Binary Response

Beechung Chen, Deepak Agarwal, Liang Zhang, Rajiv Khanna

arxiv:1203.5124 v1 · 2012-03-22 · cs.LG · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EPCEPYMWBLBLQUIFRO5AAE7NRY}

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	2026-05-18T03:59:26.822807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23c447e1960ac2b851058bba0013ed8e283740b1d82751a5d7fcc5d61049e3f8

Aliases

arxiv: 1203.5124 · arxiv_version: 1203.5124v1 · doi: 10.48550/arxiv.1203.5124 · pith_short_12: EPCEPYMWBLBL · pith_short_16: EPCEPYMWBLBLQUIF · pith_short_8: EPCEPYMW

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/EPCEPYMWBLBLQUIFRO5AAE7NRY \
  | 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: 23c447e1960ac2b851058bba0013ed8e283740b1d82751a5d7fcc5d61049e3f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b7ff3881478968fc0e902e16fbc6506f5d35cbbb9302bb7b0f4a05d72940f25",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-03-22T20:54:53Z",
    "title_canon_sha256": "e6ad2d63ca6564f3079a2ec1e1bf6bd9bc8fd3186ac5ead3508e5db7f52fefcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5124",
    "kind": "arxiv",
    "version": 1
  }
}