Pith Number

pith:FVB4YN3G

pith:2017:FVB4YN3GG65I7ZEWBWKS6DVKI4

not attested not anchored not stored refs pending

Mutual Information based labelling and comparing clusters

Rob Koopman, Shenghui Wang

arxiv:1702.08199 v1 · 2017-02-27 · cs.IR · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FVB4YN3GG65I7ZEWBWKS6DVKI4}

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	2026-05-18T00:49:55.638371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d43cc376637ba8fe4960d952f0eaa470bc0fb15401f955c1bbc5bc024d8b824

Aliases

arxiv: 1702.08199 · arxiv_version: 1702.08199v1 · doi: 10.48550/arxiv.1702.08199 · pith_short_12: FVB4YN3GG65I · pith_short_16: FVB4YN3GG65I7ZEW · pith_short_8: FVB4YN3G

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/FVB4YN3GG65I7ZEWBWKS6DVKI4 \
  | 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: 2d43cc376637ba8fe4960d952f0eaa470bc0fb15401f955c1bbc5bc024d8b824

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6c49b6f6df6b2a4e5aeaf1f375d89a84794aef34858a44c348e07840f76bf61",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2017-02-27T09:23:46Z",
    "title_canon_sha256": "bc35c85bfbea8c0f6d1084007b09621f0a031679ae67ea77b7bd88bfd74773d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08199",
    "kind": "arxiv",
    "version": 1
  }
}