Pith Number

pith:IPTF7XZH

pith:2016:IPTF7XZHNN2YMIWOFD5EEHI43R

not attested not anchored not stored refs pending

L-Convex Polyominoes are Recognizable in Real Time by 2D Cellular Automata

Ana\"el Grandjean, Victor Poupet

arxiv:1610.00323 v1 · 2016-10-02 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IPTF7XZHNN2YMIWOFD5EEHI43R}

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	2026-05-18T01:03:25.753251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43e65fdf276b758622ce28fa421d1cdc7ae88cb35020e674383bcafd157b9b28

Aliases

arxiv: 1610.00323 · arxiv_version: 1610.00323v1 · doi: 10.48550/arxiv.1610.00323 · pith_short_12: IPTF7XZHNN2Y · pith_short_16: IPTF7XZHNN2YMIWO · pith_short_8: IPTF7XZH

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/IPTF7XZHNN2YMIWOFD5EEHI43R \
  | 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: 43e65fdf276b758622ce28fa421d1cdc7ae88cb35020e674383bcafd157b9b28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5dbbfd68ed8039bc92b9336b184bd690f46f5839df332f6c1eb16d9d3906240",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2016-10-02T17:43:38Z",
    "title_canon_sha256": "c87f77b229057ba7caedb5dddc830bb61a816f09964c6f65acacb047020d22d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.00323",
    "kind": "arxiv",
    "version": 1
  }
}