Pith Number

pith:FWVCVMUD

pith:2021:FWVCVMUDEOMPYCQWMK3Q2QQTLP

not attested not anchored not stored refs pending

Rethinking Neural vs. Matrix-Factorization Collaborative Filtering: the Theoretical Perspectives

Chuanwei Ruan, Da Xu, Evren Korpeoglu, Kannan Achan, Sushant Kumar

arxiv:2110.12141 v1 · 2021-10-23 · cs.IR · 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{FWVCVMUDEOMPYCQWMK3Q2QQTLP}

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	2026-07-05T03:25:00.820543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2daa2ab2832398fc0a1662b70d42135bccd7dbaba7d7006a30a1a281795bbaa0

Aliases

arxiv: 2110.12141 · arxiv_version: 2110.12141v1 · doi: 10.48550/arxiv.2110.12141 · pith_short_12: FWVCVMUDEOMP · pith_short_16: FWVCVMUDEOMPYCQW · pith_short_8: FWVCVMUD

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/FWVCVMUDEOMPYCQWMK3Q2QQTLP \
  | 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: 2daa2ab2832398fc0a1662b70d42135bccd7dbaba7d7006a30a1a281795bbaa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7542b1a4039a1459cfcb791b57a35049614a74d6427963ada6d0e6a139cd5db",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-10-23T04:55:21Z",
    "title_canon_sha256": "2224bf3752689bb8f41d0abaa0d515acefdbfbcc09c4fffd510a19459f9df57e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.12141",
    "kind": "arxiv",
    "version": 1
  }
}