Pith Number

pith:BMRCUYA4

pith:2018:BMRCUYA4OJ5GL3I7PEGBNZZGZZ

not attested not anchored not stored refs pending

Relaxing and Restraining Queries for OBDA

Magdalena Ortiz, Mantas \v{S}imkus, Medina Andre\c{s}el, Yazmin Ib\'a\~nez-Garc\'ia

arxiv:1808.02850 v1 · 2018-08-08 · cs.LO · cs.AI · 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{BMRCUYA4OJ5GL3I7PEGBNZZGZZ}

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	2026-05-18T00:08:31.991567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b222a601c727a65ed1f790c16e726ce6ca8b1aa4b6ee199d6cf055d86af7d4d

Aliases

arxiv: 1808.02850 · arxiv_version: 1808.02850v1 · doi: 10.48550/arxiv.1808.02850 · pith_short_12: BMRCUYA4OJ5G · pith_short_16: BMRCUYA4OJ5GL3I7 · pith_short_8: BMRCUYA4

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/BMRCUYA4OJ5GL3I7PEGBNZZGZZ \
  | 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: 0b222a601c727a65ed1f790c16e726ce6ca8b1aa4b6ee199d6cf055d86af7d4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70634c635ae08ee9115fbda2247c852e0868665efb4b75beb6a8cc9bf98550c2",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.DB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-08-08T16:27:52Z",
    "title_canon_sha256": "9ff72f209ba0664f375b059cf7cd5eb01f51160f35c26897f41d165516163848"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02850",
    "kind": "arxiv",
    "version": 1
  }
}