Pith Number

pith:V7CZ7M7G

pith:2016:V7CZ7M7GRLAKAPWLTKCQKWYVBI

not attested not anchored not stored refs pending

An Empirical Comparison of Sampling Quality Metrics: A Case Study for Bayesian Nonnegative Matrix Factorization

Arjumand Masood, Finale Doshi-Velez, Weiwei Pan

arxiv:1606.06250 v1 · 2016-06-20 · cs.LG · 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{V7CZ7M7GRLAKAPWLTKCQKWYVBI}

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	2026-05-18T01:12:15.286584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afc59fb3e68ac0a03ecb9a85055b150a09e38c65a8c83d96274be4c78ec21bed

Aliases

arxiv: 1606.06250 · arxiv_version: 1606.06250v1 · doi: 10.48550/arxiv.1606.06250 · pith_short_12: V7CZ7M7GRLAK · pith_short_16: V7CZ7M7GRLAKAPWL · pith_short_8: V7CZ7M7G

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/V7CZ7M7GRLAKAPWLTKCQKWYVBI \
  | 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: afc59fb3e68ac0a03ecb9a85055b150a09e38c65a8c83d96274be4c78ec21bed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45c5b9ba31c3e775fa7af9dbfc1dc44294bb1b142e56b9d4156974c6393d8e41",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-06-20T18:59:34Z",
    "title_canon_sha256": "ed389287f793f9fd9eca7916327bbb0c28232f750ba6805f2659000d169ea31c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.06250",
    "kind": "arxiv",
    "version": 1
  }
}