Pith Number

pith:WLK7KRR7

pith:2019:WLK7KRR73HSOS3Z4ZMZP4WSQZY

not attested not anchored not stored refs pending

Modelling informational entropy

Alessandra Palmigiano, Andrew Craig, Nachoem M. Wijnberg, Willem Conradie

arxiv:1903.12518 v2 · 2019-03-29 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WLK7KRR73HSOS3Z4ZMZP4WSQZY}

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	2026-05-17T23:44:54.743205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2d5f5463fd9e4e96f3ccb32fe5a50ce0cd5129a99a2c9c5ce467b0e3b3db2fb

Aliases

arxiv: 1903.12518 · arxiv_version: 1903.12518v2 · doi: 10.48550/arxiv.1903.12518 · pith_short_12: WLK7KRR73HSO · pith_short_16: WLK7KRR73HSOS3Z4 · pith_short_8: WLK7KRR7

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/WLK7KRR73HSOS3Z4ZMZP4WSQZY \
  | 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: b2d5f5463fd9e4e96f3ccb32fe5a50ce0cd5129a99a2c9c5ce467b0e3b3db2fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a686a51fe17c48bef039247c21155d019723c9591d292633f9d0c4eb251582e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-03-29T13:32:26Z",
    "title_canon_sha256": "07a860f0896633a519373ab8e40cca4e82d02ec0770937804c484e19543886ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.12518",
    "kind": "arxiv",
    "version": 2
  }
}