Pith Number

pith:NBT6GGUR

pith:2012:NBT6GGUR3OAVFQFMZLCW72VM74

not attested not anchored not stored refs pending

Quartile Clustering: A quartile based technique for Generating Meaningful Clusters

Amlan Chakrabarti, Saptarsi Goswami

arxiv:1203.4157 v1 · 2012-03-19 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NBT6GGUR3OAVFQFMZLCW72VM74}

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	2026-05-18T03:59:48.188122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6867e31a91db8152c0accac56feaacff063a30ff2d61fba4fa2418fef77f1dba

Aliases

arxiv: 1203.4157 · arxiv_version: 1203.4157v1 · doi: 10.48550/arxiv.1203.4157 · pith_short_12: NBT6GGUR3OAV · pith_short_16: NBT6GGUR3OAVFQFM · pith_short_8: NBT6GGUR

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/NBT6GGUR3OAVFQFMZLCW72VM74 \
  | 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: 6867e31a91db8152c0accac56feaacff063a30ff2d61fba4fa2418fef77f1dba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eccd577d0758ba540cfe50239de3e266b31a130035b6f40b937e5bd702a33ec5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2012-03-19T16:38:05Z",
    "title_canon_sha256": "730f9c5a6bca6978d0a80ce01e63896cbe82d35b5d6dcc28dfdccb337702f25f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4157",
    "kind": "arxiv",
    "version": 1
  }
}