Pith Number

pith:PSS4TJ5O

pith:2014:PSS4TJ5O6RKYOGR2XNVFCC5GRW

not attested not anchored not stored refs pending

ILCR: Item-based Latent Factors for Sparse Collaborative Retrieval

Chuang Liu, Junming Huang, Lu Yu, Zike Zhang

arxiv:1412.3898 v1 · 2014-12-12 · 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{PSS4TJ5O6RKYOGR2XNVFCC5GRW}

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	2026-05-18T02:31:29.364997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ca5c9a7aef455871a3abb6a510ba68d8bca1786e62de925b4f5d247514efcad

Aliases

arxiv: 1412.3898 · arxiv_version: 1412.3898v1 · doi: 10.48550/arxiv.1412.3898 · pith_short_12: PSS4TJ5O6RKY · pith_short_16: PSS4TJ5O6RKYOGR2 · pith_short_8: PSS4TJ5O

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/PSS4TJ5O6RKYOGR2XNVFCC5GRW \
  | 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: 7ca5c9a7aef455871a3abb6a510ba68d8bca1786e62de925b4f5d247514efcad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57fa59b0be0588e9e15c8278ef208dbcd0a3794cde24fed0fa2a375074534b29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2014-12-12T06:32:47Z",
    "title_canon_sha256": "69cde1b6b288a1e4628e279d4820fba4a6f3f54d460042113e3bd3f0bc3c6587"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.3898",
    "kind": "arxiv",
    "version": 1
  }
}