Pith Number

pith:NM5ZXWUE

pith:2013:NM5ZXWUEDRWKKYTS7D3E3EVOHN

not attested not anchored not stored refs pending

Efficient Solution of a Class of Quantified Constraints with Quantifier Prefix Exists-Forall

Milan Hlad\'ik, Stefan Ratschan

arxiv:1312.6155 v3 · 2013-12-20 · cs.LO · cs.DS · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NM5ZXWUEDRWKKYTS7D3E3EVOHN}

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	2026-05-18T02:49:03.209946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b3b9bda841c6ca56272f8f64d92ae3b6c79e82b57e893e60e611cb3330b94ec

Aliases

arxiv: 1312.6155 · arxiv_version: 1312.6155v3 · doi: 10.48550/arxiv.1312.6155 · pith_short_12: NM5ZXWUEDRWK · pith_short_16: NM5ZXWUEDRWKKYTS · pith_short_8: NM5ZXWUE

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/NM5ZXWUEDRWKKYTS7D3E3EVOHN \
  | 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: 6b3b9bda841c6ca56272f8f64d92ae3b6c79e82b57e893e60e611cb3330b94ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "554e11bdd6d2a622af9985910cb8203a733c702a5934ad54a518486f9da1ad74",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-12-20T21:41:18Z",
    "title_canon_sha256": "cd00a677c1b94407b9daefee9f4fd8b86c6ddc79c8f86abf6649d4448637219c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.6155",
    "kind": "arxiv",
    "version": 3
  }
}