Pith Number

pith:4B433L6A

pith:2019:4B433L6ARLIXBP47H5UGWHPTGA

not attested not anchored not stored refs pending

A hybrid recommendation algorithm based on weighted stochastic block model

Ruzhe Zhong, Yuchen Xiao

arxiv:1905.03192 v1 · 2019-05-08 · cs.SI · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4B433L6ARLIXBP47H5UGWHPTGA}

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	2026-05-17T23:46:42.592260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e079bdafc08ad170bf9f3f686b1df330225949e800602b44868aae51c94edbfa

Aliases

arxiv: 1905.03192 · arxiv_version: 1905.03192v1 · doi: 10.48550/arxiv.1905.03192 · pith_short_12: 4B433L6ARLIX · pith_short_16: 4B433L6ARLIXBP47 · pith_short_8: 4B433L6A

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/4B433L6ARLIXBP47H5UGWHPTGA \
  | 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: e079bdafc08ad170bf9f3f686b1df330225949e800602b44868aae51c94edbfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "589cb2ed0ea83f36062b73a8e914c030ec8ca15a3f4d92ad4c85a422b7b09abf",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2019-05-08T16:21:01Z",
    "title_canon_sha256": "a3b64575cbc9c966b4db8399e43294d3fd59c1e0a40662bc97d30fdfbe2f1898"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03192",
    "kind": "arxiv",
    "version": 1
  }
}