Pith Number

pith:ZZIXNBQG

pith:2017:ZZIXNBQGRGNIFVNZ4FENNIEK3M

not attested not anchored not stored refs pending

A polynomial time algorithm for the Lambek calculus with brackets of bounded order

Andre Scedrov, Glyn Morrill, Max Kanovich, Stepan Kuznetsov

arxiv:1705.00694 v2 · 2017-05-01 · cs.LO · cs.CL · cs.DS · 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{ZZIXNBQGRGNIFVNZ4FENNIEK3M}

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	2026-05-18T00:27:52.600917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce51768606899a82d5b9e148d6a08adb3f53112bd7f8eaeea5c1facf3c99c756

Aliases

arxiv: 1705.00694 · arxiv_version: 1705.00694v2 · doi: 10.48550/arxiv.1705.00694 · pith_short_12: ZZIXNBQGRGNI · pith_short_16: ZZIXNBQGRGNIFVNZ · pith_short_8: ZZIXNBQG

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/ZZIXNBQGRGNIFVNZ4FENNIEK3M \
  | 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: ce51768606899a82d5b9e148d6a08adb3f53112bd7f8eaeea5c1facf3c99c756

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccec2ac251cadbf622df3773861bd87004159e3888277d1a861cc50a8565da55",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.DS",
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-05-01T20:12:11Z",
    "title_canon_sha256": "8467b80200cbb249527d38310e743994a536c7a8d77ec473b87687d4837de8be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.00694",
    "kind": "arxiv",
    "version": 2
  }
}