Pith Number

pith:EURKZGFF

pith:2011:EURKZGFFZKN3J36SRPRSC5E5J5

not attested not anchored not stored refs pending

Generalizing Boolean Satisfiability III: Implementation

A. J. Parkes, D. Hofer, E. M. Luks, H. E. Dixon, M. L. Ginsberg

arxiv:1109.2142 v1 · 2011-09-09 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EURKZGFFZKN3J36SRPRSC5E5J5}

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	2026-05-18T04:13:38.500408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2522ac98a5ca9bb4efd28be321749d4f53b0c734dc4275fd66fb80c421696d74

Aliases

arxiv: 1109.2142 · arxiv_version: 1109.2142v1 · doi: 10.48550/arxiv.1109.2142 · pith_short_12: EURKZGFFZKN3 · pith_short_16: EURKZGFFZKN3J36S · pith_short_8: EURKZGFF

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/EURKZGFFZKN3J36SRPRSC5E5J5 \
  | 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: 2522ac98a5ca9bb4efd28be321749d4f53b0c734dc4275fd66fb80c421696d74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd51f397a69d6bdef0cb165730ba5a8ff21b02f069d8b98fb1c4885d86c68239",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2011-09-09T20:31:25Z",
    "title_canon_sha256": "722a2201c3454c7a5db7ad1d6ec72ba92a8111d9ebd3718529cace6481f40bb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2142",
    "kind": "arxiv",
    "version": 1
  }
}