Pith Number

pith:36Z2AGG2

pith:2012:36Z2AGG2H3EJR6V5LKMMOOGR7E

not attested not anchored not stored refs pending

On the complexity of the model checking problem

Barnaby Martin, Florent Madelaine

arxiv:1210.6893 v1 · 2012-10-25 · cs.LO · 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{36Z2AGG2H3EJR6V5LKMMOOGR7E}

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	2026-05-18T03:42:22.891565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfb3a018da3ec898fabd5a98c738d1f903aebd766597a3794c5bf55099bf98c1

Aliases

arxiv: 1210.6893 · arxiv_version: 1210.6893v1 · doi: 10.48550/arxiv.1210.6893 · pith_short_12: 36Z2AGG2H3EJ · pith_short_16: 36Z2AGG2H3EJR6V5 · pith_short_8: 36Z2AGG2

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/36Z2AGG2H3EJR6V5LKMMOOGR7E \
  | 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: dfb3a018da3ec898fabd5a98c738d1f903aebd766597a3794c5bf55099bf98c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64913b953c96b7f3fb129d5ecae1a85828d7abaa8e6ed6a10c21c772b6467daa",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-10-25T16:21:37Z",
    "title_canon_sha256": "408557577d38eaa488b45b280041663b3cf22744cf8c0a360ff72ad500061ed8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6893",
    "kind": "arxiv",
    "version": 1
  }
}