Pith Number

pith:SGXF5IQP

pith:2013:SGXF5IQPWKRZDLSR5U2LEV7BOW

not attested not anchored not stored refs pending

Nominal Regular Expressions for Languages over Infinite Alphabets. Extended Abstract

Alexander Kurz, Emilio Tuosto, Tomoyuki Suzuki

arxiv:1310.7093 v1 · 2013-10-26 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SGXF5IQPWKRZDLSR5U2LEV7BOW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:08:46.266917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91ae5ea20fb2a391ae51ed34b257e175bf4d33306e11c1cf14c50283001d6437

Aliases

arxiv: 1310.7093 · arxiv_version: 1310.7093v1 · doi: 10.48550/arxiv.1310.7093 · pith_short_12: SGXF5IQPWKRZ · pith_short_16: SGXF5IQPWKRZDLSR · pith_short_8: SGXF5IQP

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/SGXF5IQPWKRZDLSR5U2LEV7BOW \
  | 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: 91ae5ea20fb2a391ae51ed34b257e175bf4d33306e11c1cf14c50283001d6437

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3aaf45a995a83f93cfd0c6b2365fdd663b6dc3c40ee8637ec7fbe23f77df951d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2013-10-26T10:10:48Z",
    "title_canon_sha256": "a7959fc6324bafa8a2fa24fe144cad271e980578c2ec6803f0463024d3a0bd47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.7093",
    "kind": "arxiv",
    "version": 1
  }
}