Pith Number

pith:FPJAGPLO

pith:2015:FPJAGPLOMPN2SZGPBYQ76KTMGF

not attested not anchored not stored refs pending

Cellular Automata are Generic

Evgenia Falkovich, Nachum Dershowitz

arxiv:1504.03013 v1 · 2015-04-12 · cs.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{FPJAGPLOMPN2SZGPBYQ76KTMGF}

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	2026-05-18T02:18:59.415641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bd2033d6e63dba964cf0e21ff2a6c314c7484945f193da71f0d076ffa8ae378

Aliases

arxiv: 1504.03013 · arxiv_version: 1504.03013v1 · doi: 10.48550/arxiv.1504.03013 · pith_short_12: FPJAGPLOMPN2 · pith_short_16: FPJAGPLOMPN2SZGP · pith_short_8: FPJAGPLO

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/FPJAGPLOMPN2SZGPBYQ76KTMGF \
  | 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: 2bd2033d6e63dba964cf0e21ff2a6c314c7484945f193da71f0d076ffa8ae378

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "029b8f8d9b0dff0e565bce4ee61c63131ae608294b745d885df5819f6c058ecb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-04-12T20:27:58Z",
    "title_canon_sha256": "04f91cc46352abb2e0edb8514767232e28890e3b5dcdc7b00c39e47a83c62ff7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03013",
    "kind": "arxiv",
    "version": 1
  }
}