Pith Number

pith:W32OBAKX

pith:2023:W32OBAKXU7YT5FCQMPUX7LDNSA

not attested not anchored not stored refs pending

Contrastive Hierarchical Clustering

Jacek Tabor, Marek \'Smieja, Micha{\l} Znale\'zniak, Patryk Kaszuba, Przemys{\l}aw Rola

arxiv:2303.03389 v2 · 2023-03-03 · cs.LG · 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{W32OBAKXU7YT5FCQMPUX7LDNSA}

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	2026-07-05T06:23:02.315776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6f4e08157a7f13e945063e97fac6d900b0c8f273cbbcc436826e186927e03d3

Aliases

arxiv: 2303.03389 · arxiv_version: 2303.03389v2 · doi: 10.48550/arxiv.2303.03389 · pith_short_12: W32OBAKXU7YT · pith_short_16: W32OBAKXU7YT5FCQ · pith_short_8: W32OBAKX

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/W32OBAKXU7YT5FCQMPUX7LDNSA \
  | 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: b6f4e08157a7f13e945063e97fac6d900b0c8f273cbbcc436826e186927e03d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "288ee6ddb361fac92ce395caa411def848a4be8d15a84f5aeb747ccf295c7e31",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2023-03-03T07:54:19Z",
    "title_canon_sha256": "49901bda6d2cdcfb818b96eaeac78506b0c1e30cf352634cd19f66424aaf9d27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.03389",
    "kind": "arxiv",
    "version": 2
  }
}