Pith Number

pith:XCQZAGNK

pith:2021:XCQZAGNKE2W6ZOOZ4DSVFMLHOA

not attested not anchored not stored refs pending

A Framework for Federated SPARQL Query Processing over Heterogeneous Linked Data Fragments

Lars Heling, Maribel Acosta

arxiv:2102.03269 v2 · 2021-02-05 · 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{XCQZAGNKE2W6ZOOZ4DSVFMLHOA}

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.

Cited by

1 paper in Pith

MetaboT: An LLM-based Multi-Agent Frameworkfor Interactive Analysis of Mass SpectrometryMetabolomics Knowledge Graphs

Receipt and verification

First computed	2026-07-05T02:18:33.484778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8a19019aa26adecb9d9e0e552b167703cd4ae3c018d7f90d8897cacbf36af58

Aliases

arxiv: 2102.03269 · arxiv_version: 2102.03269v2 · doi: 10.48550/arxiv.2102.03269 · pith_short_12: XCQZAGNKE2W6 · pith_short_16: XCQZAGNKE2W6ZOOZ · pith_short_8: XCQZAGNK

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/XCQZAGNKE2W6ZOOZ4DSVFMLHOA \
  | 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: b8a19019aa26adecb9d9e0e552b167703cd4ae3c018d7f90d8897cacbf36af58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa7792f63bad4a30357bb8707eb4c801efac34f5772110b8fa0ee8ae2ea38cfe",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2021-02-05T16:20:12Z",
    "title_canon_sha256": "ebfeb19b6b61a64a4f355e56fa3e51d968aed581e8e0e9f9b7727f2e40014887"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.03269",
    "kind": "arxiv",
    "version": 2
  }
}