Pith Number

pith:52D7ZS2U

pith:2018:52D7ZS2UQKNTFEBBFJUFGLPWPD

not attested not anchored not stored refs pending

Coupled Graphs and Tensor Factorization for Recommender Systems and Community Detection

Ahmed S. Zamzam, Georgios B. Giannakis, Nicholas D. Sidiropoulos, Vassilis N. Ioannidis

arxiv:1809.08353 v2 · 2018-09-22 · stat.ML · cs.LG · cs.SI · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{52D7ZS2UQKNTFEBBFJUFGLPWPD}

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	2026-05-17T23:44:43.015796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee87fccb54829b3290212a68532df678ca1900968496cabf04d1c4c1cfc89662

Aliases

arxiv: 1809.08353 · arxiv_version: 1809.08353v2 · doi: 10.48550/arxiv.1809.08353 · pith_short_12: 52D7ZS2UQKNT · pith_short_16: 52D7ZS2UQKNTFEBB · pith_short_8: 52D7ZS2U

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/52D7ZS2UQKNTFEBBFJUFGLPWPD \
  | 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: ee87fccb54829b3290212a68532df678ca1900968496cabf04d1c4c1cfc89662

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20f6fda8cd99a252db7b8cf1b49f9ce160eb1926f6d8560c307a6588c137c18e",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.SI",
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-09-22T00:25:20Z",
    "title_canon_sha256": "95f16a2a2dc73bf2eee5f9bb6e0164adadbcb50e3536805d61a6b3ca0712fbaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08353",
    "kind": "arxiv",
    "version": 2
  }
}