Pith Number

pith:4ZJOCW6H

pith:2014:4ZJOCW6HRVWIUXBYXEB2Y4WR2Y

not attested not anchored not stored refs pending

Encoding Tasks and R\'enyi Entropy

Amos Lapidoth, Christoph Bunte

arxiv:1401.6338 v2 · 2014-01-24 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ZJOCW6HRVWIUXBYXEB2Y4WR2Y}

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	2026-05-18T02:41:08.708686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e652e15bc78d6c8a5c38b903ac72d1d63734e8beeea220a056fd8400bacc8942

Aliases

arxiv: 1401.6338 · arxiv_version: 1401.6338v2 · doi: 10.48550/arxiv.1401.6338 · pith_short_12: 4ZJOCW6HRVWI · pith_short_16: 4ZJOCW6HRVWIUXBY · pith_short_8: 4ZJOCW6H

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/4ZJOCW6HRVWIUXBYXEB2Y4WR2Y \
  | 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: e652e15bc78d6c8a5c38b903ac72d1d63734e8beeea220a056fd8400bacc8942

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e89bd3f534d10f29f9fe8e70153b703f713c253457bb28e53cc425fe2d2911fc",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-01-24T13:53:57Z",
    "title_canon_sha256": "03f429663461da4af1c316b968aaa2e3b1f854fa1bf1bc7a83a867a4eb5469f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.6338",
    "kind": "arxiv",
    "version": 2
  }
}