Pith Number

pith:56D64D4W

pith:2014:56D64D4WP7XQC3D57KYX52ZX7F

not attested not anchored not stored refs pending

Complexity of Nondeterministic Graph Parameter Testing

Marek Karpinski, Roland Mark\'o

arxiv:1408.3590 v2 · 2014-08-15 · cs.DS · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{56D64D4WP7XQC3D57KYX52ZX7F}

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	2026-05-18T01:09:55.500984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef87ee0f967fef016c7dfab17eeb37f9617a2ffc840c8325426b6acc396f50a7

Aliases

arxiv: 1408.3590 · arxiv_version: 1408.3590v2 · doi: 10.48550/arxiv.1408.3590 · pith_short_12: 56D64D4WP7XQ · pith_short_16: 56D64D4WP7XQC3D5 · pith_short_8: 56D64D4W

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/56D64D4WP7XQC3D57KYX52ZX7F \
  | 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: ef87ee0f967fef016c7dfab17eeb37f9617a2ffc840c8325426b6acc396f50a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64f0af6a144abe84e1882b17113152b36c80de5ad913ba26b7041b7af0cc14b0",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-08-15T17:13:13Z",
    "title_canon_sha256": "428976734ba64256b35aac31decd61d0a61cc7dc54e85b5daab08411d74a892d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.3590",
    "kind": "arxiv",
    "version": 2
  }
}