Pith Number

pith:IYWQHRLT

pith:2017:IYWQHRLTDS3TJPEEWSSYCMIBED

not attested not anchored not stored refs pending

Solving satisfiability using inclusion-exclusion

Anthony Zaleski

arxiv:1712.06587 v1 · 2017-12-15 · 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{IYWQHRLTDS3TJPEEWSSYCMIBED}

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	2026-05-18T00:27:41.056474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

462d03c5731cb734bc84b4a581310120dac3563d80e6ffc25034937f10f9db8e

Aliases

arxiv: 1712.06587 · arxiv_version: 1712.06587v1 · doi: 10.48550/arxiv.1712.06587 · pith_short_12: IYWQHRLTDS3T · pith_short_16: IYWQHRLTDS3TJPEE · pith_short_8: IYWQHRLT

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/IYWQHRLTDS3TJPEEWSSYCMIBED \
  | 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: 462d03c5731cb734bc84b4a581310120dac3563d80e6ffc25034937f10f9db8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c922e7d0c9aee782d403d50c944af76464f793b09b7f02ed4cefe11ca93aa893",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-12-15T22:05:05Z",
    "title_canon_sha256": "fb3ef4793cac47df02efafba211ab75f457a3ec0c27e1975f3043f8f66798151"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.06587",
    "kind": "arxiv",
    "version": 1
  }
}