Pith Number

pith:SQ64US6X

pith:2018:SQ64US6XJQUVVZXT2YKQPLEYVT

not attested not anchored not stored refs pending

Definition and Identification of Information Storage and Processing Capabilities as Possible Markers for Turing-universality in Cellular Automata

Yanbo Zhang

arxiv:1803.06919 v1 · 2018-03-14 · 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{SQ64US6XJQUVVZXT2YKQPLEYVT}

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	2026-05-18T00:20:40.871845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

943dca4bd74c295ae6f3d61507ac98acee36014b82707d960181a4d80c005a8d

Aliases

arxiv: 1803.06919 · arxiv_version: 1803.06919v1 · doi: 10.48550/arxiv.1803.06919 · pith_short_12: SQ64US6XJQUV · pith_short_16: SQ64US6XJQUVVZXT · pith_short_8: SQ64US6X

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/SQ64US6XJQUVVZXT2YKQPLEYVT \
  | 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: 943dca4bd74c295ae6f3d61507ac98acee36014b82707d960181a4d80c005a8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99015951580497f90e0c0f06f9edd63d69758356f44425aad2bd16383cf9d76d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CG",
    "submitted_at": "2018-03-14T13:00:32Z",
    "title_canon_sha256": "e3ca0dabf211d4d59e271ad827723259775c7196a903025a0b2abd900466327f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06919",
    "kind": "arxiv",
    "version": 1
  }
}