Pith Number

pith:UI54U7BJ

pith:2015:UI54U7BJF4ZVBKFUIV66ZARE4D

not attested not anchored not stored refs pending

A note on entropy estimation

Thomas Sch\"urmann

arxiv:1503.05911 v2 · 2015-03-19 · physics.data-an · cs.IT · math.IT · 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{UI54U7BJF4ZVBKFUIV66ZARE4D}

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	2026-05-18T01:29:31.734789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a23bca7c292f3350a8b4457dec8224e0d15cb321281ea9fcf15e3c991f2ae71d

Aliases

arxiv: 1503.05911 · arxiv_version: 1503.05911v2 · doi: 10.48550/arxiv.1503.05911 · pith_short_12: UI54U7BJF4ZV · pith_short_16: UI54U7BJF4ZVBKFU · pith_short_8: UI54U7BJ

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/UI54U7BJF4ZVBKFUIV66ZARE4D \
  | 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: a23bca7c292f3350a8b4457dec8224e0d15cb321281ea9fcf15e3c991f2ae71d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1aadaf0e74fa0e10c2af36ca07332578637972cb3a37f18ac586fab259e2c7c3",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2015-03-19T19:53:31Z",
    "title_canon_sha256": "f434959c1d428d44e768671871a56737ba83a16efc4ba4a0d759603ff5e148da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.05911",
    "kind": "arxiv",
    "version": 2
  }
}