Pith Number

pith:SML2P2T2

pith:2014:SML2P2T2K2F6WA2IZQF6H5P6MF

not attested not anchored not stored refs pending

An Intuitive Procedure for Converting PDA to CFG, by Construction of Single State PDA

Arjun Bhardwaj, N.S. Narayanaswamy

arxiv:1411.0813 v1 · 2014-11-04 · cs.FL

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T02:38:38.165224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9317a7ea7a568beb0348cc0be3f5fe617ab3b0aa022341d40f90478f3038d0a8

Aliases

arxiv: 1411.0813 · arxiv_version: 1411.0813v1 · doi: 10.48550/arxiv.1411.0813

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/SML2P2T2K2F6WA2IZQF6H5P6MF \
  | 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: 9317a7ea7a568beb0348cc0be3f5fe617ab3b0aa022341d40f90478f3038d0a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c0ff55bc7b9c061a2710144980f61924c698c35fc2d93f11e041fb74deacca3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2014-11-04T07:33:52Z",
    "title_canon_sha256": "e4fd70c8ca1c995119db84a8e6b78e148acaae17e4b18a55b7eb23bb59fbcffd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.0813",
    "kind": "arxiv",
    "version": 1
  }
}