Pith Number

pith:BDXH4VFC

pith:2017:BDXH4VFCFBPSXCKMUTGEX6OMLC

not attested not anchored not stored refs pending

Exchangeable modelling of relational data: checking sparsity, train-test splitting, and sparse exchangeable Poisson matrix factorization

Daniel M. Roy, Ekansh Sharma, Victor Veitch, Zacharie Naulet

arxiv:1712.02311 v1 · 2017-12-06 · 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{BDXH4VFCFBPSXCKMUTGEX6OMLC}

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	2026-05-18T00:28:38.519034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08ee7e54a2285f2b894ca4cc4bf9cc58b1f74a0c8ea4dee66a05af6908759042

Aliases

arxiv: 1712.02311 · arxiv_version: 1712.02311v1 · doi: 10.48550/arxiv.1712.02311 · pith_short_12: BDXH4VFCFBPS · pith_short_16: BDXH4VFCFBPSXCKM · pith_short_8: BDXH4VFC

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/BDXH4VFCFBPSXCKMUTGEX6OMLC \
  | 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: 08ee7e54a2285f2b894ca4cc4bf9cc58b1f74a0c8ea4dee66a05af6908759042

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d033016a7c0b4225bf5fe764f41dff6cf096d5066e879a900404a8d78afa5dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-12-06T18:20:14Z",
    "title_canon_sha256": "bc732e67582557dd51a3b81fc75050e4a444d0eb2b90b19f88341eb2db468927"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.02311",
    "kind": "arxiv",
    "version": 1
  }
}