Pith Number

pith:2DR2E5LD

pith:2019:2DR2E5LDQLYAI6UJUCOVS7NVHF

not attested not anchored not stored refs pending

Coarse Graining of Partitioned Cellular Automata

Fernando de Melo, Pedro C. S. Costa

arxiv:1905.10391 v3 · 2019-05-24 · nlin.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2DR2E5LDQLYAI6UJUCOVS7NVHF}

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.

Cited by

1 paper in Pith

Effective state as compatibility between agents

Receipt and verification

First computed	2026-07-05T01:59:53.641013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0e3a2756382f0047a89a09d597db5395f8fa9c1bdab478c2a58e3f7343a8b38

Aliases

arxiv: 1905.10391 · arxiv_version: 1905.10391v3 · doi: 10.48550/arxiv.1905.10391 · pith_short_12: 2DR2E5LDQLYA · pith_short_16: 2DR2E5LDQLYAI6UJ · pith_short_8: 2DR2E5LD

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/2DR2E5LDQLYAI6UJUCOVS7NVHF \
  | 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: d0e3a2756382f0047a89a09d597db5395f8fa9c1bdab478c2a58e3f7343a8b38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "416cbbcf2a7eab15e42f5fa12bd2aa12124f9cdb4345e4f6e926f15f05c5811e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CG",
    "submitted_at": "2019-05-24T18:03:01Z",
    "title_canon_sha256": "e44c261b53e2e96fe688bb2fca20490045c96f42983dc63e11009ece10aa0589"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.10391",
    "kind": "arxiv",
    "version": 3
  }
}