Pith Number

pith:ABRWVTEA

pith:2018:ABRWVTEA62FBJQ2PBS5Z3R3RY5

not attested not anchored not stored refs pending

Deep Item-based Collaborative Filtering for Sparse Implicit Feedback

Daniel A. Galron, Jin Chung, Michal Wieja, Paul Wang, Yuri M. Brovman

arxiv:1812.10546 v1 · 2018-12-26 · 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{ABRWVTEA62FBJQ2PBS5Z3R3RY5}

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	2026-05-17T23:57:20.756124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00636acc80f68a14c34f0cbb9dc771c77539d906cb660814cff0f94dc43f5a4a

Aliases

arxiv: 1812.10546 · arxiv_version: 1812.10546v1 · doi: 10.48550/arxiv.1812.10546 · pith_short_12: ABRWVTEA62FB · pith_short_16: ABRWVTEA62FBJQ2P · pith_short_8: ABRWVTEA

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/ABRWVTEA62FBJQ2PBS5Z3R3RY5 \
  | 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: 00636acc80f68a14c34f0cbb9dc771c77539d906cb660814cff0f94dc43f5a4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0652d73c8225637c7b7754b10ed07d8268f20c5464e77ce471135dfb616a0553",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-12-26T21:40:17Z",
    "title_canon_sha256": "f99863d17b160b3fe65aa2647fadd992c72ec71f36dbcc316fda1d3ac2b1a706"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.10546",
    "kind": "arxiv",
    "version": 1
  }
}