Pith Number

pith:N2LHYRU5

pith:2011:N2LHYRU55ZSHJFBFZBB4T24M63

not attested not anchored not stored refs pending

Efficient Squares and Turing Universality at Temperature 1 with a Unique Negative Glue

Matthew J. Patitz, Robert T. Schweller, Scott M. Summers

arxiv:1105.1215 v2 · 2011-05-06 · cs.ET · cs.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{N2LHYRU55ZSHJFBFZBB4T24M63}

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	2026-05-18T04:03:20.303624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e967c469dee64749425c843c9eb8cf6dc4274c677f60c364e3b2dca14281280

Aliases

arxiv: 1105.1215 · arxiv_version: 1105.1215v2 · doi: 10.48550/arxiv.1105.1215 · pith_short_12: N2LHYRU55ZSH · pith_short_16: N2LHYRU55ZSHJFBF · pith_short_8: N2LHYRU5

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/N2LHYRU55ZSHJFBFZBB4T24M63 \
  | 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: 6e967c469dee64749425c843c9eb8cf6dc4274c677f60c364e3b2dca14281280

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e73ca6a41b137ed69fa9d1f141ea5bdd4aeddaaf37760b83cebc9f36ddec80d",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.ET",
    "submitted_at": "2011-05-06T02:45:13Z",
    "title_canon_sha256": "af42498437cf45813bfee830527948ee0c8d12106211abf905d125fe834f1330"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1215",
    "kind": "arxiv",
    "version": 2
  }
}