Pith Number

pith:USUU7Q6N

pith:2021:USUU7Q6NG62VMX4DLERKG65JSY

not attested not anchored not stored refs pending

Double-Scale Self-Supervised Hypergraph Learning for Group Recommendation

Hongzhi Yin, Jundong Li, Junliang Yu, Junwei Zhang, Lei Guo, Min Gao

arxiv:2109.04200 v2 · 2021-09-09 · 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{USUU7Q6NG62VMX4DLERKG65JSY}

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	2026-07-05T04:06:44.815035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4a94fc3cd37b5565f835922a37ba996039608f6d2ef6a09a6eb2ad2e5d05d9e

Aliases

arxiv: 2109.04200 · arxiv_version: 2109.04200v2 · doi: 10.48550/arxiv.2109.04200 · pith_short_12: USUU7Q6NG62V · pith_short_16: USUU7Q6NG62VMX4D · pith_short_8: USUU7Q6N

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/USUU7Q6NG62VMX4DLERKG65JSY \
  | 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: a4a94fc3cd37b5565f835922a37ba996039608f6d2ef6a09a6eb2ad2e5d05d9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "386b060dddcb9fb366ff68b68bfa7543c579dde9f6616d8479b6626bb62b378c",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-09-09T12:19:49Z",
    "title_canon_sha256": "85e96773c12cb9b58a9733fbaa0df1dce42ef5830a17a1a1748288dd33afe2cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.04200",
    "kind": "arxiv",
    "version": 2
  }
}