Pith Number

pith:LNRZYNFI

pith:2016:LNRZYNFIWO4XL2ZEWM7OJC4RJB

not attested not anchored not stored refs pending

A complexity dichotomy for poset constraint satisfaction

Michael Kompatscher, Trung Van Pham

arxiv:1603.00082 v3 · 2016-02-29 · cs.CC · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LNRZYNFIWO4XL2ZEWM7OJC4RJB}

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	2026-05-18T01:03:59.383236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b639c34a8b3b975eb24b33ee48b914843a3c733c7da3264943d7a48947cf106

Aliases

arxiv: 1603.00082 · arxiv_version: 1603.00082v3 · doi: 10.48550/arxiv.1603.00082 · pith_short_12: LNRZYNFIWO4X · pith_short_16: LNRZYNFIWO4XL2ZE · pith_short_8: LNRZYNFI

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/LNRZYNFIWO4XL2ZEWM7OJC4RJB \
  | 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: 5b639c34a8b3b975eb24b33ee48b914843a3c733c7da3264943d7a48947cf106

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78190065d22d6412c17df0a1cbf3a31c0197692eb91f8396fdd39d7f2eecbd8a",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2016-02-29T22:45:49Z",
    "title_canon_sha256": "318ae0e066816f34f1f615f6eb507ee2452dcbd4ec5f61b345faf981a5d912f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.00082",
    "kind": "arxiv",
    "version": 3
  }
}