Pith Number

pith:NRE2QMH4

pith:2014:NRE2QMH4CALWIJIHOUOJAMEA6B

not attested not anchored not stored refs pending

Optimal string clustering based on a Laplace-like mixture and EM algorithm on a set of strings

Hitoshi Koyano, Morihiro Hayashida, Tatsuya Akutsu

arxiv:1411.6471 v3 · 2014-11-24 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NRE2QMH4CALWIJIHOUOJAMEA6B}

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	2026-05-18T01:30:51.161539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c49a830fc1017642507751c903080f04198995b336d6520b8da896ed6a0cfc5

Aliases

arxiv: 1411.6471 · arxiv_version: 1411.6471v3 · doi: 10.48550/arxiv.1411.6471 · pith_short_12: NRE2QMH4CALW · pith_short_16: NRE2QMH4CALWIJIH · pith_short_8: NRE2QMH4

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/NRE2QMH4CALWIJIHOUOJAMEA6B \
  | 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: 6c49a830fc1017642507751c903080f04198995b336d6520b8da896ed6a0cfc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c74b2b14716ff3dbf9689d00d3221c3c60784ac3b94ecdfc95773675073709a",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2014-11-24T14:48:17Z",
    "title_canon_sha256": "f2e4b1176d9da47de8aa3e09b9ee946d6db2bda2fae7003090aa7622b42dcd96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.6471",
    "kind": "arxiv",
    "version": 3
  }
}