Pith Number

pith:LRFA4QNV

pith:2019:LRFA4QNVLJSGFXWEWKRXQQ757H

not attested not anchored not stored refs pending

Information Measure Similarity Theory: Message Importance Measure via Shannon Entropy

Pingyi Fan, Rui She, Shanyun Liu

arxiv:1901.01137 v1 · 2019-01-04 · 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{LRFA4QNVLJSGFXWEWKRXQQ757H}

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	2026-05-17T23:56:56.972632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c4a0e41b55a6462dec4b2a37843fdf9da295609fcd53c26f4ecb80583fdc294

Aliases

arxiv: 1901.01137 · arxiv_version: 1901.01137v1 · doi: 10.48550/arxiv.1901.01137 · pith_short_12: LRFA4QNVLJSG · pith_short_16: LRFA4QNVLJSGFXWE · pith_short_8: LRFA4QNV

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/LRFA4QNVLJSGFXWEWKRXQQ757H \
  | 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: 5c4a0e41b55a6462dec4b2a37843fdf9da295609fcd53c26f4ecb80583fdc294

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "305a5b64ee4a30240fc599032c57a0ca545795acde99a5f97d2ee7ba6e0243d3",
    "cross_cats_sorted": [
      "math.IT",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-01-04T14:36:04Z",
    "title_canon_sha256": "406ddbb532a28f84cc6e1a804ba9e7c4072f02176e103bd9b7cc4fdc551b198d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01137",
    "kind": "arxiv",
    "version": 1
  }
}