Pith Number

pith:XCZH4F3V

pith:2012:XCZH4F3VWDKXOHHKJQ2MFKYICE

not attested not anchored not stored refs pending

Normalized Compression Distance of Multisets with Applications

Andrew R. Cohen (Electrical, Computer Engineering, Drexel University, Paul M. B. Vitanyi (CWI, Philadelphia), University of Amsterdam)

arxiv:1212.5711 v4 · 2012-12-22 · cs.CV · cs.IT · math.IT · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XCZH4F3VWDKXOHHKJQ2MFKYICE}

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	2026-05-18T01:21:49.599900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8b27e1775b0d5771cea4c34c2ab08112f112f7c6f2f286715b320b72430cc10

Aliases

arxiv: 1212.5711 · arxiv_version: 1212.5711v4 · doi: 10.48550/arxiv.1212.5711 · pith_short_12: XCZH4F3VWDKX · pith_short_16: XCZH4F3VWDKXOHHK · pith_short_8: XCZH4F3V

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/XCZH4F3VWDKXOHHKJQ2MFKYICE \
  | 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: b8b27e1775b0d5771cea4c34c2ab08112f112f7c6f2f286715b320b72430cc10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14463d0e7bdf4ec208c4e9d24d307ab7b81c1c2f49fd33d53debad52076b08d4",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-12-22T17:37:03Z",
    "title_canon_sha256": "f437feebe83747dd8d45811d8a15ed4248e142da87912a4f5af1a6796fe71132"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5711",
    "kind": "arxiv",
    "version": 4
  }
}