Pith Number

pith:SSFXCXXL

pith:2011:SSFXCXXLY4DBC4RT4RFNTDMOXZ

not attested not anchored not stored refs pending

Compressed Membership for NFA (DFA) with Compressed Labels is in NP (P)

Artur Je\.z

arxiv:1110.2318 v1 · 2011-10-11 · 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{SSFXCXXLY4DBC4RT4RFNTDMOXZ}

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	2026-05-18T03:08:59.867521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

948b715eebc706117233e44ad98d8ebe669b5f538c84da8c1e6d3ecac4a85389

Aliases

arxiv: 1110.2318 · arxiv_version: 1110.2318v1 · doi: 10.48550/arxiv.1110.2318 · pith_short_12: SSFXCXXLY4DB · pith_short_16: SSFXCXXLY4DBC4RT · pith_short_8: SSFXCXXL

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/SSFXCXXLY4DBC4RT4RFNTDMOXZ \
  | 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: 948b715eebc706117233e44ad98d8ebe669b5f538c84da8c1e6d3ecac4a85389

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "beb81716cb575d48a38c0b3c9a23f06530b12432c96d5e9c7861ab25a2ee175f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2011-10-11T10:10:28Z",
    "title_canon_sha256": "349d1f5a7825b88283203b5c37bb7dab80b65b7df13397cb85828be6ac1e1d6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2318",
    "kind": "arxiv",
    "version": 1
  }
}