Pith Number

pith:QEHA6KUX

pith:2005:QEHA6KUXTOJNAC5ZHQPINUOKPJ

not attested not anchored not stored refs pending

First-order Complete and Computationally Complete Query Languages for Spatio-Temporal Databases

Bart Kuijpers, Floris Geerts, Sofie Haesevoets

arxiv:cs/0503012 v2 · 2005-03-04 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QEHA6KUXTOJNAC5ZHQPINUOKPJ}

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	2026-05-18T01:06:49.173700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

810e0f2a979b92d00bb93c1e86d1ca7a76a243b4b9eb7947305d97bfa3f54cc7

Aliases

arxiv: cs/0503012 · arxiv_version: cs/0503012v2 · doi: 10.48550/arxiv.cs/0503012 · pith_short_12: QEHA6KUXTOJN · pith_short_16: QEHA6KUXTOJNAC5Z · pith_short_8: QEHA6KUX

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/QEHA6KUXTOJNAC5ZHQPINUOKPJ \
  | 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: 810e0f2a979b92d00bb93c1e86d1ca7a76a243b4b9eb7947305d97bfa3f54cc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8667a363b849fac4f9724c1c701cc393b46449d7ddda6ec6e257be48f48e653",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.DB",
    "submitted_at": "2005-03-04T15:34:45Z",
    "title_canon_sha256": "59ede5437808e0320f3a064f91f0834045ce9d7491002bbbbee1c4d30b893dad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0503012",
    "kind": "arxiv",
    "version": 2
  }
}