Pith Number

pith:2IYNNZXY

pith:2026:2IYNNZXYG5RMSX7WHKRS7Y5AY7

not attested not anchored not stored refs pending

Dual-Tree LLM-Enhanced Negative Sampling for Implicit Collaborative Filtering

Guoren Wang, Jiayi Wu, Rong-Hua Li, Xunkai Li, Zhengyu Wu

arxiv:2602.18249 v2 · 2026-02-20 · 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{2IYNNZXYG5RMSX7WHKRS7Y5AY7}

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	2026-05-20T00:03:06.247035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d230d6e6f83762c95ff63aa32fe3a0c7f70b9d423f550809ed067bc744c5b32d

Aliases

arxiv: 2602.18249 · arxiv_version: 2602.18249v2 · doi: 10.48550/arxiv.2602.18249 · pith_short_12: 2IYNNZXYG5RM · pith_short_16: 2IYNNZXYG5RMSX7W · pith_short_8: 2IYNNZXY

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/2IYNNZXYG5RMSX7WHKRS7Y5AY7 \
  | 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: d230d6e6f83762c95ff63aa32fe3a0c7f70b9d423f550809ed067bc744c5b32d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2352880d967b1566b4aa565d8b819235296b6ea6750c77a28609e0e649ff264",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-02-20T14:32:41Z",
    "title_canon_sha256": "a0ed933841f1c88a6f95238786e129d993a58d741cdad5f21c2cfa086e425436"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.18249",
    "kind": "arxiv",
    "version": 2
  }
}