Pith Number

pith:B3U6U2Y6

pith:2010:B3U6U2Y62QXMPW3AYT2AG5N4AM

not attested not anchored not stored refs pending

Complexity in Prefix-Free Regular Languages

Galina Jir\'askov\'a, Monika Krausov\'a

arxiv:1008.1662 v1 · 2010-08-10 · 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{B3U6U2Y62QXMPW3AYT2AG5N4AM}

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	2026-05-18T04:42:23.558736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ee9ea6b1ed42ec7db60c4f40375bc032198e13a0ca9d93a4c2c1f7be36829da

Aliases

arxiv: 1008.1662 · arxiv_version: 1008.1662v1 · doi: 10.48550/arxiv.1008.1662 · pith_short_12: B3U6U2Y62QXM · pith_short_16: B3U6U2Y62QXMPW3A · pith_short_8: B3U6U2Y6

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/B3U6U2Y62QXMPW3AYT2AG5N4AM \
  | 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: 0ee9ea6b1ed42ec7db60c4f40375bc032198e13a0ca9d93a4c2c1f7be36829da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d1526e2b5ba56d75000663a39391c0fd88c74f08bab61b0b6052a80dbc958e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2010-08-10T08:34:14Z",
    "title_canon_sha256": "d8c76f43086d59af8f7534bbe839994ae3e4a9eb778865c7366c05c37b4a4c15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1662",
    "kind": "arxiv",
    "version": 1
  }
}