Pith Number

pith:BMUCH7MZ

pith:2018:BMUCH7MZSHKPIR2TSBJULGVD3A

not attested not anchored not stored refs pending

Recommender system for learning SQL using hints

Alja\v{z} Zrnec, Dejan Lavbi\v{c}, Tadej Matek

arxiv:1807.02637 v1 · 2018-07-07 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BMUCH7MZSHKPIR2TSBJULGVD3A}

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	2026-05-18T00:11:16.474041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b2823fd9991d4f447539053459aa3d835528b6e8682009ee03559deece8e62e

Aliases

arxiv: 1807.02637 · arxiv_version: 1807.02637v1 · doi: 10.48550/arxiv.1807.02637 · pith_short_12: BMUCH7MZSHKP · pith_short_16: BMUCH7MZSHKPIR2T · pith_short_8: BMUCH7MZ

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/BMUCH7MZSHKPIR2TSBJULGVD3A \
  | 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: 0b2823fd9991d4f447539053459aa3d835528b6e8682009ee03559deece8e62e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a63a369afbcb7dd8f4339303e6e5c7c8dbb1677dcba07a5038941438ad08b76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2018-07-07T09:13:34Z",
    "title_canon_sha256": "51189a227a50f2fcc343bf2f9f5a5f334b9c8ca73126a7c9121c5405d1d24f6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02637",
    "kind": "arxiv",
    "version": 1
  }
}