Pith Number

pith:A3KDQB3B

pith:2023:A3KDQB3BTVZ4VK7NZ5JMQDQLYF

not attested not anchored not stored refs pending

Model-Agnostic Decentralized Collaborative Learning for On-Device POI Recommendation

Guandong Xu, Hongzhi Yin, Jing Long, Kai Zheng, Nguyen Quoc Viet Hung, Tong Chen

arxiv:2304.03947 v1 · 2023-04-08 · 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{A3KDQB3BTVZ4VK7NZ5JMQDQLYF}

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	2026-07-05T05:59:09.407854Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06d43807619d73caabedcf52c80e0bc1435f8acb283a50bc616efeba11fb65be

Aliases

arxiv: 2304.03947 · arxiv_version: 2304.03947v1 · doi: 10.48550/arxiv.2304.03947 · pith_short_12: A3KDQB3BTVZ4 · pith_short_16: A3KDQB3BTVZ4VK7N · pith_short_8: A3KDQB3B

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/A3KDQB3BTVZ4VK7NZ5JMQDQLYF \
  | 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: 06d43807619d73caabedcf52c80e0bc1435f8acb283a50bc616efeba11fb65be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc095f8b52601991f9a406659cea8f4995781b3e8cb66a2a4fbeb5b017f9ca97",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2023-04-08T07:36:37Z",
    "title_canon_sha256": "65f03e6930ece46bffb632d6220f8530676e7e2f2323abddcd082475ec54e8bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.03947",
    "kind": "arxiv",
    "version": 1
  }
}