Pith Number

pith:5CEOAAOV

pith:2011:5CEOAAOVRCJOIEKQ6WPS7TFRZ4

not attested not anchored not stored refs pending

The evaluation of geometric queries: constraint databases and quantifier elimination

Bart Kuijpers, Joos Heintz, Marc Giusti

arxiv:1110.2196 v2 · 2011-10-10 · cs.DB · cs.CC · cs.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{5CEOAAOVRCJOIEKQ6WPS7TFRZ4}

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	2026-05-18T04:11:07.006871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e888e001d58892e41150f59f2fccb1cf0b8ab598b3be04d24633e7ad8cecab87

Aliases

arxiv: 1110.2196 · arxiv_version: 1110.2196v2 · doi: 10.48550/arxiv.1110.2196 · pith_short_12: 5CEOAAOVRCJO · pith_short_16: 5CEOAAOVRCJOIEKQ · pith_short_8: 5CEOAAOV

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/5CEOAAOVRCJOIEKQ6WPS7TFRZ4 \
  | 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: e888e001d58892e41150f59f2fccb1cf0b8ab598b3be04d24633e7ad8cecab87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13ca136d058ec316fc8245ba099204e7acff68dc7aef35ac887cfd7f5a079cff",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2011-10-10T20:55:17Z",
    "title_canon_sha256": "b1cf330de183512f2282bf68139c57378298aa68d977eee3c6c7591b35b544ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2196",
    "kind": "arxiv",
    "version": 2
  }
}