Pith Number

pith:GDIXUXBT

pith:2025:GDIXUXBTIAHCBXQYAOUWDCB4F6

not attested not anchored not stored refs pending

Hybrid Matrix Factorization Based Graph Contrastive Learning for Recommendation System

Hao Chen, Mingqi Li, Wenming Ma, Zihao Chu

arxiv:2509.05115 v1 · 2025-09-05 · 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{GDIXUXBTIAHCBXQYAOUWDCB4F6}

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	2026-07-05T12:05:36.292497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30d17a5c33400e20de1803a961883c2faf46509c6fe9862b264eb5e39082ebc3

Aliases

arxiv: 2509.05115 · arxiv_version: 2509.05115v1 · doi: 10.48550/arxiv.2509.05115 · pith_short_12: GDIXUXBTIAHC · pith_short_16: GDIXUXBTIAHCBXQY · pith_short_8: GDIXUXBT

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/GDIXUXBTIAHCBXQYAOUWDCB4F6 \
  | 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: 30d17a5c33400e20de1803a961883c2faf46509c6fe9862b264eb5e39082ebc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "896c60d161f7d8fe2a671a1c23876848424467f72b1ca0cd72fd8001add8cbcc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-09-05T13:57:07Z",
    "title_canon_sha256": "9b1e17a9649dca794bb8707a3242f0cb0b603cef5afa1eeb5608c4fce03c73a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.05115",
    "kind": "arxiv",
    "version": 1
  }
}