Pith Number

pith:2EOUK7ZE

pith:2018:2EOUK7ZEFYGA4QNKROX3LHQFOH

not attested not anchored not stored refs pending

Determining the Number of Samples Required to Estimate Entropy in Natural Sequences

Andrew D. Back, Daniel Angus, Janet Wiles

arxiv:1805.08929 v1 · 2018-05-23 · cs.IT · math.IT · math.ST · physics.data-an · 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{2EOUK7ZEFYGA4QNKROX3LHQFOH}

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	2026-05-18T00:15:09.065007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d11d457f242e0c0e41aa8bafb59e0571c6751d2cda6a72e091417c6bb234ef5d

Aliases

arxiv: 1805.08929 · arxiv_version: 1805.08929v1 · doi: 10.48550/arxiv.1805.08929 · pith_short_12: 2EOUK7ZEFYGA · pith_short_16: 2EOUK7ZEFYGA4QNK · pith_short_8: 2EOUK7ZE

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/2EOUK7ZEFYGA4QNKROX3LHQFOH \
  | 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: d11d457f242e0c0e41aa8bafb59e0571c6751d2cda6a72e091417c6bb234ef5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eacd1eefc3dc413cdd04460c917fb032423c04ec675d3dad23250cb8c751fe3b",
    "cross_cats_sorted": [
      "math.IT",
      "math.ST",
      "physics.data-an",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-05-23T01:44:29Z",
    "title_canon_sha256": "fd5e95fc658fbafd9e4fbfebd4b0fe65a041cd2e2d92e7b23b44f61f7ef9007a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08929",
    "kind": "arxiv",
    "version": 1
  }
}