Pith Number

pith:7ERHWDWM

pith:2014:7ERHWDWM36H42PFSL2EGTMFIKL

not attested not anchored not stored refs pending

Representation of (Left) Ideal Regular Languages by Synchronizing Automata

Emanuele Rodaro, Marina Maslennikova

arxiv:1412.6767 v1 · 2014-12-21 · 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{7ERHWDWM36H42PFSL2EGTMFIKL}

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	2026-05-18T02:30:46.260772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9227b0eccdf8fcd3cb25e8869b0a852cd3351d41374a699971d3fc6096b1ee2

Aliases

arxiv: 1412.6767 · arxiv_version: 1412.6767v1 · doi: 10.48550/arxiv.1412.6767 · pith_short_12: 7ERHWDWM36H4 · pith_short_16: 7ERHWDWM36H42PFS · pith_short_8: 7ERHWDWM

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/7ERHWDWM36H42PFSL2EGTMFIKL \
  | 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: f9227b0eccdf8fcd3cb25e8869b0a852cd3351d41374a699971d3fc6096b1ee2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df66c9158fb67ca95f1727357ce80034cb595bea643ae9012e441287559a265d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2014-12-21T11:56:11Z",
    "title_canon_sha256": "601385f97786cdbfaffc6443b38f73327ff3ac5372927c39c382f58a9106b614"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.6767",
    "kind": "arxiv",
    "version": 1
  }
}