Pith Number

pith:3PZKZ54G

pith:2010:3PZKZ54G7QDYSTIT2UKY5ZRPXG

not attested not anchored not stored refs pending

Classifying Clustering Schemes

Facundo Memoli, Gunnar Carlsson

arxiv:1011.5270 v2 · 2010-11-24 · stat.ML · 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{3PZKZ54G7QDYSTIT2UKY5ZRPXG}

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

It's All About Covers: Persistent Homology of Cover Refinements

Receipt and verification

First computed	2026-05-18T04:34:27.094600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbf2acf786fc07894d13d5158ee62fb9a0dbb8590d2508c87e5e856a8ccce934

Aliases

arxiv: 1011.5270 · arxiv_version: 1011.5270v2 · doi: 10.48550/arxiv.1011.5270 · pith_short_12: 3PZKZ54G7QDY · pith_short_16: 3PZKZ54G7QDYSTIT · pith_short_8: 3PZKZ54G

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/3PZKZ54G7QDYSTIT2UKY5ZRPXG \
  | 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: dbf2acf786fc07894d13d5158ee62fb9a0dbb8590d2508c87e5e856a8ccce934

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b974c60608c305e951314cd515e6c8679f3c6bfdb5712f800e8f2a7663f33963",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2010-11-24T01:51:00Z",
    "title_canon_sha256": "7f921ea3a11ffc660d4e6059ce606f68c4b2de37d97c26a2f4dd81183368e8bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.5270",
    "kind": "arxiv",
    "version": 2
  }
}