Pith Number

pith:J7VYX2TD

pith:2021:J7VYX2TDRW6METT7A47UHHCRF5

not attested not anchored not stored refs pending

How to Find a Good Explanation for Clustering?

Fedor V. Fomin, Kirill Simonov, Nidhi Purohit, Petr A. Golovach, Sayan Bandyapadhyay, William Lochet

arxiv:2112.06580 v2 · 2021-12-13 · cs.DS · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J7VYX2TDRW6METT7A47UHHCRF5}

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	2026-07-05T03:41:28.491204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4feb8bea638dbcc24e7f073f439c512f7921ef1e82662bf052c87668d68c943c

Aliases

arxiv: 2112.06580 · arxiv_version: 2112.06580v2 · doi: 10.48550/arxiv.2112.06580 · pith_short_12: J7VYX2TDRW6M · pith_short_16: J7VYX2TDRW6METT7 · pith_short_8: J7VYX2TD

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/J7VYX2TDRW6METT7A47UHHCRF5 \
  | 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: 4feb8bea638dbcc24e7f073f439c512f7921ef1e82662bf052c87668d68c943c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bc2e39dcbdf54f176118cdc47abf664c4000a268ad2e092c55c133348d8f906",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2021-12-13T11:48:38Z",
    "title_canon_sha256": "33da446712a23d9f2c0831b81a64c61059bcaf2e07c16606d6e8c942db9166e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.06580",
    "kind": "arxiv",
    "version": 2
  }
}