Pith Number

pith:TQFZZ4XG

pith:2026:TQFZZ4XGJLA7BTBAYOSTIWYWTS

not attested not anchored not stored refs pending

Rank-Constrained Deep Matrix Completion for Group Recommendation

Isah Charles Saidu, Lehel Csat\'o, Mubaraka Sani Ibrahim

arxiv:2606.01948 v1 · 2026-06-01 · 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{TQFZZ4XGJLA7BTBAYOSTIWYWTS}

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	2026-06-02T02:05:01.329245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c0b9cf2e64ac1f0cc20c3a5345b169cb3399fd14e3be99bfb9458877e038813

Aliases

arxiv: 2606.01948 · arxiv_version: 2606.01948v1 · doi: 10.48550/arxiv.2606.01948 · pith_short_12: TQFZZ4XGJLA7 · pith_short_16: TQFZZ4XGJLA7BTBA · pith_short_8: TQFZZ4XG

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/TQFZZ4XGJLA7BTBAYOSTIWYWTS \
  | 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: 9c0b9cf2e64ac1f0cc20c3a5345b169cb3399fd14e3be99bfb9458877e038813

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd67e956a0c6a7fcb7023f83a4f4fa8e5080433c31abbb08603bf6097723978a",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-06-01T09:09:46Z",
    "title_canon_sha256": "472322eeba8d9b22259a73bf3e2eaad3ac919a5a42259784a512b11d2c6183f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.01948",
    "kind": "arxiv",
    "version": 1
  }
}