Pith Number

pith:XRQJTDET

pith:2017:XRQJTDETDBZW6OPOP55DNFL6NK

not attested not anchored not stored refs pending

A Rule-Based Approach to Analyzing Database Schema Objects with Datalog

Andreas Behrend, Christiane Engels, Stefan Brass

arxiv:1709.05376 v1 · 2017-09-15 · cs.PL · cs.DB · 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{XRQJTDETDBZW6OPOP55DNFL6NK}

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	2026-05-18T00:35:00.993166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc60998c9318736f39ee7f7a36957e6a9002a5e57faeb90dbe89dbd289bd44d7

Aliases

arxiv: 1709.05376 · arxiv_version: 1709.05376v1 · doi: 10.48550/arxiv.1709.05376 · pith_short_12: XRQJTDETDBZW · pith_short_16: XRQJTDETDBZW6OPO · pith_short_8: XRQJTDET

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/XRQJTDETDBZW6OPOP55DNFL6NK \
  | 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: bc60998c9318736f39ee7f7a36957e6a9002a5e57faeb90dbe89dbd289bd44d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c01e1791a089993c80b4a3b1fbc70b3470edcfd720d7420c4b8c6dd93ba52ef9",
    "cross_cats_sorted": [
      "cs.DB",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-09-15T19:23:30Z",
    "title_canon_sha256": "2cdb70661e39eaab01f7deb5933047470a95528f80ed74c55eec16ed7b8ac5e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05376",
    "kind": "arxiv",
    "version": 1
  }
}