Pith Number

pith:E6FZKS5F

pith:2012:E6FZKS5FJC4XP3NYEU5XGX2C4M

not attested not anchored not stored refs pending

Linear Time Algorithm for Projective Clustering

Hu Ding, Jinhui Xu

arxiv:1204.6717 v2 · 2012-04-30 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E6FZKS5FJC4XP3NYEU5XGX2C4M}

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	2026-05-18T02:21:15.842731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

278b954ba548b977edb8253b735f42e31042a95e2fcebd05807634afa9c7a758

Aliases

arxiv: 1204.6717 · arxiv_version: 1204.6717v2 · doi: 10.48550/arxiv.1204.6717 · pith_short_12: E6FZKS5FJC4X · pith_short_16: E6FZKS5FJC4XP3NY · pith_short_8: E6FZKS5F

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/E6FZKS5FJC4XP3NYEU5XGX2C4M \
  | 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: 278b954ba548b977edb8253b735f42e31042a95e2fcebd05807634afa9c7a758

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2e43d8347ba2ee63d3fe275befb226c5c7540c8d5de9e29658f9d00465c25a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2012-04-30T18:06:53Z",
    "title_canon_sha256": "a6723bd2a35c3b625b8f3368588a2081bbb1bf574fea84b3c1ccac3a26c6fd3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6717",
    "kind": "arxiv",
    "version": 2
  }
}