Pith Number

pith:LD3FHZTD

pith:2020:LD3FHZTDZS4NIQPN5UCWGFUB4R

not attested not anchored not stored refs pending

Contrastive Clustering

Dezhong Peng, Joey Tianyi Zhou, Peng Hu, Xi Peng, Yunfan Li, Zitao Liu

arxiv:2009.09687 v1 · 2020-09-21 · cs.LG · cs.CV · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LD3FHZTDZS4NIQPN5UCWGFUB4R}

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.

Cited by

1 paper in Pith

Policy-Based Trajectory Clustering in Offline Reinforcement Learning

Receipt and verification

First computed	2026-07-05T01:36:51.885266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58f653e663ccb8d441eded05631681e44eed16ed51c9b3eac2f17607b9f6b3a7

Aliases

arxiv: 2009.09687 · arxiv_version: 2009.09687v1 · doi: 10.48550/arxiv.2009.09687 · pith_short_12: LD3FHZTDZS4N · pith_short_16: LD3FHZTDZS4NIQPN · pith_short_8: LD3FHZTD

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/LD3FHZTDZS4NIQPN5UCWGFUB4R \
  | 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: 58f653e663ccb8d441eded05631681e44eed16ed51c9b3eac2f17607b9f6b3a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44acd2a6766118c83c1a28e16d992712acb41c58283e2f87d048f47e1c630aec",
    "cross_cats_sorted": [
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-09-21T08:54:40Z",
    "title_canon_sha256": "c08d0cad2219ab1ea86526620b73acb6d39955ee8fe270def8d3428ece9c763a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.09687",
    "kind": "arxiv",
    "version": 1
  }
}