Pith Number

pith:UFBWEG5Y

pith:2025:UFBWEG5YMTSL4JZNKWVIH23FIE

not attested not anchored not stored refs pending

When Graph Contrastive Learning Backfires: Spectral Vulnerability and Defense in Recommendation

Hongzhi Yin, Junliang Yu, Ling Liu, Min Gao, Shazia Sadiq, Zongwei Wang

arxiv:2507.07436 v1 · 2025-07-10 · 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{UFBWEG5YMTSL4JZNKWVIH23FIE}

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	2026-07-05T11:34:57.921039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a143621bb864e4be272d55aa83eb654123fd4c536e7b25b16698f3f8966ad366

Aliases

arxiv: 2507.07436 · arxiv_version: 2507.07436v1 · doi: 10.48550/arxiv.2507.07436 · pith_short_12: UFBWEG5YMTSL · pith_short_16: UFBWEG5YMTSL4JZN · pith_short_8: UFBWEG5Y

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/UFBWEG5YMTSL4JZNKWVIH23FIE \
  | 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: a143621bb864e4be272d55aa83eb654123fd4c536e7b25b16698f3f8966ad366

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90c133c96a7651c6365c27a1f4aefb9fc9c2cdc8943ef551dd12e82d60022404",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-07-10T05:24:08Z",
    "title_canon_sha256": "ac95aa6c4a83fd16bce9fd236537a788e83eac793a4ec82358941196c06c0c8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.07436",
    "kind": "arxiv",
    "version": 1
  }
}