Pith Number

pith:RA77JOVB

pith:2025:RA77JOVBVIEIVCP7BUNVWF6BQQ

not attested not anchored not stored refs pending

A Myhill-Nerode Type Characterization of 2detLIN Languages

Benedek Nagy (Eastern Mediterranean University / Eszterh\'azy K\'aroly Catholic University)

arxiv:2507.15316 v1 · 2025-07-21 · cs.FL · cs.DM · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RA77JOVBVIEIVCP7BUNVWF6BQQ}

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	2026-07-05T11:40:22.598366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

883ff4baa1aa088a89ff0d1b5b17c1842676e14ad168112b3b09c6665e2ac9ba

Aliases

arxiv: 2507.15316 · arxiv_version: 2507.15316v1 · doi: 10.48550/arxiv.2507.15316 · pith_short_12: RA77JOVBVIEI · pith_short_16: RA77JOVBVIEIVCP7 · pith_short_8: RA77JOVB

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/RA77JOVBVIEIVCP7BUNVWF6BQQ \
  | 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: 883ff4baa1aa088a89ff0d1b5b17c1842676e14ad168112b3b09c6665e2ac9ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1891195676cd39c73a821639749400e7f02b3bb435890160cf00704412c12890",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2025-07-21T07:15:27Z",
    "title_canon_sha256": "2c391b0e3d70e262ab61482c6fb9ce66e19f45c4b83060442b16b8cdf379c330"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.15316",
    "kind": "arxiv",
    "version": 1
  }
}