Pith Number

pith:FAP3AWE6

pith:2025:FAP3AWE6YYBQRPSKA6J7UZ26A3

not attested not anchored not stored refs pending

Collaborative Filtering Meets Spectrum Shift: Connecting User-Item Interaction with Graph-Structured Side Information

Cong Xu, Jun Wang, Wei Zhang, Yunhang He

arxiv:2502.08071 v2 · 2025-02-12 · 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{FAP3AWE6YYBQRPSKA6J7UZ26A3}

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	2026-07-05T11:04:45.531596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

281fb0589ec60308be4a0793fa675e06fb047436ca5961bf675a6cb58c5842a5

Aliases

arxiv: 2502.08071 · arxiv_version: 2502.08071v2 · doi: 10.48550/arxiv.2502.08071 · pith_short_12: FAP3AWE6YYBQ · pith_short_16: FAP3AWE6YYBQRPSK · pith_short_8: FAP3AWE6

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/FAP3AWE6YYBQRPSKA6J7UZ26A3 \
  | 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: 281fb0589ec60308be4a0793fa675e06fb047436ca5961bf675a6cb58c5842a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ffc31cd59037202e4bc4f2f746011f9f5835438c1c12deedd14ac90bce88bd3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-02-12T02:24:26Z",
    "title_canon_sha256": "54762a713e4c092ab10a50194f4260f17481164f5e880131c31adbb8da63a382"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.08071",
    "kind": "arxiv",
    "version": 2
  }
}