Pith Number

pith:MN5DMJFW

pith:2019:MN5DMJFWXEGEDUHKHUZ4W5GJ6N

not attested not anchored not stored refs pending

On simplified NP-complete variants of Not-All-Equal 3-Sat and 3-Sat

Andreas Darmann, Janosch D\"ocker

arxiv:1908.04198 v2 · 2019-08-12 · 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{MN5DMJFWXEGEDUHKHUZ4W5GJ6N}

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	2026-07-04T23:59:34.596039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

637a3624b6b90c41d0ea3d33cb74c9f341865a094fa9c94f75b17c2f94b40bba

Aliases

arxiv: 1908.04198 · arxiv_version: 1908.04198v2 · doi: 10.48550/arxiv.1908.04198 · pith_short_12: MN5DMJFWXEGE · pith_short_16: MN5DMJFWXEGEDUHK · pith_short_8: MN5DMJFW

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/MN5DMJFWXEGEDUHKHUZ4W5GJ6N \
  | 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: 637a3624b6b90c41d0ea3d33cb74c9f341865a094fa9c94f75b17c2f94b40bba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62656b4c890891656b980ef33dc4be7381070051c23945ab293e1e60e853b8c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-08-12T15:31:05Z",
    "title_canon_sha256": "c8290f6680c93b6e858783ff6df017d16069c119ce4ce8428983a50aeeb90264"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04198",
    "kind": "arxiv",
    "version": 2
  }
}