Pith Number

pith:RZYQMX3J

pith:2018:RZYQMX3JZINLIAGLZ2KGBS5EL4

not attested not anchored not stored refs pending

Approximate Method of Variational Bayesian Matrix Factorization/Completion with Sparse Prior

Koujin Takeda, Ryota Kawasumi

arxiv:1803.06234 v1 · 2018-03-14 · eess.SP · cond-mat.dis-nn · cs.IT · cs.LG · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RZYQMX3JZINLIAGLZ2KGBS5EL4}

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	2026-05-18T00:15:09.615601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e71065f69ca1ab400cbce9460cba45f2a44088c8525e54c538f4e7bbfda78b5

Aliases

arxiv: 1803.06234 · arxiv_version: 1803.06234v1 · doi: 10.48550/arxiv.1803.06234 · pith_short_12: RZYQMX3JZINL · pith_short_16: RZYQMX3JZINLIAGL · pith_short_8: RZYQMX3J

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/RZYQMX3JZINLIAGLZ2KGBS5EL4 \
  | 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: 8e71065f69ca1ab400cbce9460cba45f2a44088c8525e54c538f4e7bbfda78b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f23cd5eb1a5ca10478974dd4e7012da3aa37b98055de50baefb854852cdd1523",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cs.IT",
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-03-14T13:54:23Z",
    "title_canon_sha256": "9e16ce462d48c5aaf26882cdec5c6504653c9546fba8353dc9c189655ef14945"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06234",
    "kind": "arxiv",
    "version": 1
  }
}