Pith Number

pith:CSWTLALU

pith:2013:CSWTLALU7FANKEJYQDJIAUGXZL

not attested not anchored not stored refs pending

The Complexity of Reachability Problems for Flat Counter Machines with Periodic Loops

Filip Konecny, Marius Bozga, Radu Iosif

arxiv:1307.5321 v5 · 2013-07-16 · cs.CC · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CSWTLALU7FANKEJYQDJIAUGXZL}

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	2026-05-18T01:20:50.828164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14ad358174f940d5113880d28050d7cad1b57ab1096c7c19475bd5051f63543b

Aliases

arxiv: 1307.5321 · arxiv_version: 1307.5321v5 · doi: 10.48550/arxiv.1307.5321 · pith_short_12: CSWTLALU7FAN · pith_short_16: CSWTLALU7FANKEJY · pith_short_8: CSWTLALU

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/CSWTLALU7FANKEJYQDJIAUGXZL \
  | 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: 14ad358174f940d5113880d28050d7cad1b57ab1096c7c19475bd5051f63543b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a07038f452c3850652e31f91cb6d661ecf7bf3397800d2d588276a43f86cd4c1",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-07-16T09:55:15Z",
    "title_canon_sha256": "7af3485a036803d4654549198fd939277eb020db420da3e9b2f43eee76989368"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5321",
    "kind": "arxiv",
    "version": 5
  }
}