Pith Number

pith:AXWNJGL6

pith:2014:AXWNJGL6ODUQRFDTH7JQ5OYYTO

not attested not anchored not stored refs pending

A Complete Refinement Procedure for Regular Separability of Context-Free Languages

Graeme Gange, Harald Sondergaard, Jorge A. Navas, Peter J. Stuckey, Peter Schachte

arxiv:1411.5131 v1 · 2014-11-19 · 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{AXWNJGL6ODUQRFDTH7JQ5OYYTO}

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	2026-05-18T02:34:44.320499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05ecd4997e70e90894733fd30ebb189babf83ecf65fd52a968673895b86ecc4c

Aliases

arxiv: 1411.5131 · arxiv_version: 1411.5131v1 · doi: 10.48550/arxiv.1411.5131 · pith_short_12: AXWNJGL6ODUQ · pith_short_16: AXWNJGL6ODUQRFDT · pith_short_8: AXWNJGL6

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/AXWNJGL6ODUQRFDTH7JQ5OYYTO \
  | 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: 05ecd4997e70e90894733fd30ebb189babf83ecf65fd52a968673895b86ecc4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c5fec826c67b372aa1c886e0fb9b13ad38e5becb9a89b8f4c222dbf7345ee9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2014-11-19T07:32:06Z",
    "title_canon_sha256": "477fd2ee24484a4f4d5534fbbb35afae59cc0f7d6c7c23380414fed502b82e1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.5131",
    "kind": "arxiv",
    "version": 1
  }
}