Pith Number

pith:LPEJVSGY

pith:2021:LPEJVSGY2JB2B55X5UDZJVNP4L

not attested not anchored not stored refs pending

A Multi-Strategy based Pre-Training Method for Cold-Start Recommendation

Bowen Hao, Cuiping Li, Hong Chen, Hongzhi Yin, Jing Zhang

arxiv:2112.02275 v4 · 2021-12-04 · cs.IR · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LPEJVSGY2JB2B55X5UDZJVNP4L}

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	2026-07-05T04:25:14.066242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bc89ac8d8d243a0f7b7ed0794d5afe2dd0b557a1d42daefc2d8b8127915e501

Aliases

arxiv: 2112.02275 · arxiv_version: 2112.02275v4 · doi: 10.48550/arxiv.2112.02275 · pith_short_12: LPEJVSGY2JB2 · pith_short_16: LPEJVSGY2JB2B55X · pith_short_8: LPEJVSGY

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/LPEJVSGY2JB2B55X5UDZJVNP4L \
  | 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: 5bc89ac8d8d243a0f7b7ed0794d5afe2dd0b557a1d42daefc2d8b8127915e501

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9394bc4e5ebf9d3d2273685f08b7921dca4bc41c37449564d616ea235b8f6d6a",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-12-04T08:11:55Z",
    "title_canon_sha256": "3f2aa60944d4f4c8ab3a681c9a6708fc84a446176460bfdeb6e330eb437f04fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.02275",
    "kind": "arxiv",
    "version": 4
  }
}