Pith Number

pith:QMFUEAWU

pith:2010:QMFUEAWUCBH34OIAQKC2CZCTCU

not attested not anchored not stored refs pending

XPath Whole Query Optimization

Kim Nguyen, Sebastian Maneth

arxiv:1003.4353 v2 · 2010-03-23 · 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{QMFUEAWUCBH34OIAQKC2CZCTCU}

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	2026-05-18T02:24:36.198131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

830b4202d4104fbe39008285a16453151191f799326f7a16256eff9365a60ef2

Aliases

arxiv: 1003.4353 · arxiv_version: 1003.4353v2 · doi: 10.48550/arxiv.1003.4353 · pith_short_12: QMFUEAWUCBH3 · pith_short_16: QMFUEAWUCBH34OIA · pith_short_8: QMFUEAWU

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/QMFUEAWUCBH34OIAQKC2CZCTCU \
  | 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: 830b4202d4104fbe39008285a16453151191f799326f7a16256eff9365a60ef2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b4c64394d9b7f96dbd8397631d6f550946375e06b8e5584080ab08e8bbf06d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2010-03-23T09:11:11Z",
    "title_canon_sha256": "ea3b662071f30ccb6b069b5bd87a5859a31106e2aaf0a6e3f9fced0dd673bdcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.4353",
    "kind": "arxiv",
    "version": 2
  }
}