Pith Number

pith:25EWGPEX

pith:2018:25EWGPEX6O67TEGWZWFFTYGSOU

not attested not anchored not stored refs pending

A comparison of encodings for cardinality constraints in a SAT solver

Ed Wynn

arxiv:1810.12975 v1 · 2018-10-27 · cs.LO · 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{25EWGPEX6O67TEGWZWFFTYGSOU}

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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.

Cited by

1 paper in Pith

Near-Optimal Encodings of Cardinality Constraints

Receipt and verification

First computed	2026-05-18T00:01:52.570008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d749633c97f3bdf990d6cd8a59e0d27507fbfb6cdc25021853acb744b7514e4c

Aliases

arxiv: 1810.12975 · arxiv_version: 1810.12975v1 · doi: 10.48550/arxiv.1810.12975 · pith_short_12: 25EWGPEX6O67 · pith_short_16: 25EWGPEX6O67TEGW · pith_short_8: 25EWGPEX

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/25EWGPEX6O67TEGWZWFFTYGSOU \
  | 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: d749633c97f3bdf990d6cd8a59e0d27507fbfb6cdc25021853acb744b7514e4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfb28283807e5965fedbf559eea25d7d0ede0ffb76b0930c17feeded15e486e4",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-10-27T16:16:59Z",
    "title_canon_sha256": "d55bdaac8ffc92ccd12fd48bb2597e8fe1ab2a3337dd2630e9ffd5c8c272ef7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12975",
    "kind": "arxiv",
    "version": 1
  }
}