Pith Number

pith:TIAAO4DN

pith:2012:TIAAO4DNUA4WFXNFDWNLRCJTMQ

not attested not anchored not stored refs pending

A Note on Limited Pushdown Alphabets in Stateless Deterministic Pushdown Automata

Tom\'a\v{s} Masopust

arxiv:1208.5002 v1 · 2012-08-24 · 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{TIAAO4DNUA4WFXNFDWNLRCJTMQ}

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	2026-05-18T03:47:52.081665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a0007706da03962dda51d9ab889336432228bdb1a46d238a820f15fa7e69584

Aliases

arxiv: 1208.5002 · arxiv_version: 1208.5002v1 · doi: 10.48550/arxiv.1208.5002 · pith_short_12: TIAAO4DNUA4W · pith_short_16: TIAAO4DNUA4WFXNF · pith_short_8: TIAAO4DN

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/TIAAO4DNUA4WFXNFDWNLRCJTMQ \
  | 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: 9a0007706da03962dda51d9ab889336432228bdb1a46d238a820f15fa7e69584

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "190cd496082bb627d2af60ed8b5c5d4bcb924e2db305d21f243fc222e0d39017",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2012-08-24T15:38:40Z",
    "title_canon_sha256": "958cfb19f40ada9becbab6732a2bddd1514b008132f8c268ca78ad20130f675b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.5002",
    "kind": "arxiv",
    "version": 1
  }
}