Pith Number

pith:YLHUAXLD

pith:2011:YLHUAXLDH3QBOF3BLEQC6ULHIM

not attested not anchored not stored refs pending

Languages of Dot-depth One over Infinite Words

Alexander Lauser, Manfred Kufleitner

arxiv:1101.4152 v2 · 2011-01-21 · cs.FL · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YLHUAXLDH3QBOF3BLEQC6ULHIM}

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	2026-05-18T02:22:50.703277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2cf405d633ee017176159202f5167432143ccec4f95b89e009f8ed49084bd62

Aliases

arxiv: 1101.4152 · arxiv_version: 1101.4152v2 · doi: 10.48550/arxiv.1101.4152 · pith_short_12: YLHUAXLDH3QB · pith_short_16: YLHUAXLDH3QBOF3B · pith_short_8: YLHUAXLD

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/YLHUAXLDH3QBOF3BLEQC6ULHIM \
  | 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: c2cf405d633ee017176159202f5167432143ccec4f95b89e009f8ed49084bd62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "285b49da81a9dc57ba6ae71478e4e665bae6cc2669447f8c49fa5016352a048c",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2011-01-21T15:00:08Z",
    "title_canon_sha256": "fb7f4b17b63830db90ce80345c3202950baeb6dd561bb0124636b8a0e3f28e09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.4152",
    "kind": "arxiv",
    "version": 2
  }
}