Pith Number

pith:MUPQHDTW

pith:2017:MUPQHDTWKRMMXIEV2DECVCYOJF

not attested not anchored not stored refs pending

AutoSVD++: An Efficient Hybrid Collaborative Filtering Model via Contractive Auto-encoders

Lina Yao, Shuai Zhang, Xiwei Xu

arxiv:1704.00551 v3 · 2017-04-03 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MUPQHDTWKRMMXIEV2DECVCYOJF}

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	2026-05-18T00:42:29.015098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

651f038e765458cba095d0c82a8b0e4949ddcd8c5cf8fa79d80d162bb6b89738

Aliases

arxiv: 1704.00551 · arxiv_version: 1704.00551v3 · doi: 10.48550/arxiv.1704.00551 · pith_short_12: MUPQHDTWKRMM · pith_short_16: MUPQHDTWKRMMXIEV · pith_short_8: MUPQHDTW

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/MUPQHDTWKRMMXIEV2DECVCYOJF \
  | 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: 651f038e765458cba095d0c82a8b0e4949ddcd8c5cf8fa79d80d162bb6b89738

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7909136e9e2a43ca43f238e503c22d541492e4849ab8ff48cb0ef05b8e035ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2017-04-03T12:39:25Z",
    "title_canon_sha256": "1074ab7c191982eb9491ce1c83b757e39cfd6e15f9719457ff2c455baec48dd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00551",
    "kind": "arxiv",
    "version": 3
  }
}