Pith Number

pith:6MAQZ6IW

pith:2013:6MAQZ6IWMPIOEYH3IQOMURF65O

not attested not anchored not stored refs pending

The two-handed tile assembly model is not intrinsically universal

Damien Woods, Erik D. Demaine, Matthew J. Patitz, Robert T. Schweller, Scott M. Summers, Trent A. Rogers

arxiv:1306.6710 v2 · 2013-06-28 · cs.CG · cs.CC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6MAQZ6IWMPIOEYH3IQOMURF65O}

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	2026-05-18T02:44:47.817702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3010cf91663d0e260fb441cca44beeb9e3496b29a4c288c8121c372dd631fec

Aliases

arxiv: 1306.6710 · arxiv_version: 1306.6710v2 · doi: 10.48550/arxiv.1306.6710 · pith_short_12: 6MAQZ6IWMPIO · pith_short_16: 6MAQZ6IWMPIOEYH3 · pith_short_8: 6MAQZ6IW

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/6MAQZ6IWMPIOEYH3IQOMURF65O \
  | 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: f3010cf91663d0e260fb441cca44beeb9e3496b29a4c288c8121c372dd631fec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8edcedd2e422a62d44c6bb1f563cf52450e4990b54110116056bafd04c2454c4",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-06-28T04:06:31Z",
    "title_canon_sha256": "118d184ebf03b55ace1e77783755c7a46a5a931faefcd5b3e119a967db15acc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6710",
    "kind": "arxiv",
    "version": 2
  }
}