Pith Number

pith:GCH7E3Q4

pith:2018:GCH7E3Q4ED2XIUE2U4OC3RGTXD

not attested not anchored not stored refs pending

Closed-form Marginal Likelihood in Gamma-Poisson Matrix Factorization

Alberto Lumbreras, C\'edric F\'evotte, Louis Filstroff

arxiv:1801.01799 v2 · 2018-01-05 · 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{GCH7E3Q4ED2XIUE2U4OC3RGTXD}

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	2026-05-18T00:14:34.126596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

308ff26e1c20f574509aa71c2dc4d3b8df17cfb41b1d3b3bf13a1e7e0b1ba541

Aliases

arxiv: 1801.01799 · arxiv_version: 1801.01799v2 · doi: 10.48550/arxiv.1801.01799 · pith_short_12: GCH7E3Q4ED2X · pith_short_16: GCH7E3Q4ED2XIUE2 · pith_short_8: GCH7E3Q4

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/GCH7E3Q4ED2XIUE2U4OC3RGTXD \
  | 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: 308ff26e1c20f574509aa71c2dc4d3b8df17cfb41b1d3b3bf13a1e7e0b1ba541

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b781e591c87a82478de3ee6992d77b5c60a715a1fe0cd645bf598e521323dc7d",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-01-05T15:50:39Z",
    "title_canon_sha256": "c7d2def83359ca1dd079daa4b0c4b9c2c825dcf65a240c2f4fe3d23b5fa1af8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.01799",
    "kind": "arxiv",
    "version": 2
  }
}