Pith Number

pith:DIGH53NO

pith:2017:DIGH53NO5ZEWI6BALB74UOYS7L

not attested not anchored not stored refs pending

Collaborative Filtering with Social Local Models

Dik Lun Lee, Huan Zhao, James T. Kwok, Quanming Yao

arxiv:1704.05735 v2 · 2017-04-19 · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DIGH53NO5ZEWI6BALB74UOYS7L}

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	2026-05-18T00:35:13.727436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a0c7eedaeee49647820587fca3b12facc783d0f4e314601c9e9539c288153b7

Aliases

arxiv: 1704.05735 · arxiv_version: 1704.05735v2 · doi: 10.48550/arxiv.1704.05735 · pith_short_12: DIGH53NO5ZEW · pith_short_16: DIGH53NO5ZEWI6BA · pith_short_8: DIGH53NO

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/DIGH53NO5ZEWI6BALB74UOYS7L \
  | 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: 1a0c7eedaeee49647820587fca3b12facc783d0f4e314601c9e9539c288153b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94002734104cdc57c17df69f7aef94313c05f2d8a6a7761faff1d6fca14e9319",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2017-04-19T13:56:13Z",
    "title_canon_sha256": "08cabc3f06f4ac368d68c73cc81443e8a5650224aff78ee009c39693a77e8872"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05735",
    "kind": "arxiv",
    "version": 2
  }
}