Pith Number

pith:GEQY5ETV

pith:2015:GEQY5ETV3U7AOLE4ZL6VJ7MODJ

not attested not anchored not stored refs pending

Parameterized Complexity of Graph Constraint Logic

Tom C. van der Zanden

arxiv:1509.02683 v1 · 2015-09-09 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GEQY5ETV3U7AOLE4ZL6VJ7MODJ}

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	2026-05-18T01:33:34.357512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31218e9275dd3e072c9ccafd54fd8e1a5085c82dcda11ea975c2dae4edf057bb

Aliases

arxiv: 1509.02683 · arxiv_version: 1509.02683v1 · doi: 10.48550/arxiv.1509.02683 · pith_short_12: GEQY5ETV3U7A · pith_short_16: GEQY5ETV3U7AOLE4 · pith_short_8: GEQY5ETV

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/GEQY5ETV3U7AOLE4ZL6VJ7MODJ \
  | 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: 31218e9275dd3e072c9ccafd54fd8e1a5085c82dcda11ea975c2dae4edf057bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4054284472f447e260d30d19d575ed1bec6034302c63249f2a8f048dee51044e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-09-09T09:04:21Z",
    "title_canon_sha256": "aa3e396303be849adc7b727d7c65e5a02f930599d57375b28c50699d5ffa421c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02683",
    "kind": "arxiv",
    "version": 1
  }
}