Pith Number

pith:DQLB5RD7

pith:2016:DQLB5RD7NQACO4O2WXSRLXALSK

not attested not anchored not stored refs pending

Language Classes Associated with Automata Over Matrix Groups

A.C.Cem Say, Flavio D'Alessandro, \"Ozlem Salehi

arxiv:1609.00396 v1 · 2016-09-01 · 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{DQLB5RD7NQACO4O2WXSRLXALSK}

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	2026-05-18T01:06:23.951463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c161ec47f6c002771dab5e515dc0b929bb0bf03d26351936b72b630d8b94559

Aliases

arxiv: 1609.00396 · arxiv_version: 1609.00396v1 · doi: 10.48550/arxiv.1609.00396 · pith_short_12: DQLB5RD7NQAC · pith_short_16: DQLB5RD7NQACO4O2 · pith_short_8: DQLB5RD7

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/DQLB5RD7NQACO4O2WXSRLXALSK \
  | 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: 1c161ec47f6c002771dab5e515dc0b929bb0bf03d26351936b72b630d8b94559

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8991913cdc948fd847bc3e87a2f7095dd5876f3ea4e9a47fd66a5d135b60552",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2016-09-01T20:24:55Z",
    "title_canon_sha256": "ad6ecc197612008c5cd6bfa93566c3abb0607758d3812cc558d5a2c2098890ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00396",
    "kind": "arxiv",
    "version": 1
  }
}