Pith Number

pith:BJO5F7JL

pith:2026:BJO5F7JLCDP3C3AXDT4HGOLHFX

not attested not anchored not stored refs pending

Nonlinear spectral clustering with C++ GraphBLAS

Albert-Jan Yzelman, Dimosthenis Pasadakis, Olaf Schenk, Verner Vlacic

arxiv:2605.26975 v1 · 2026-05-26 · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BJO5F7JLCDP3C3AXDT4HGOLHFX}

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	2026-05-27T01:06:22.295499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a5dd2fd2b10dfb16c171cf87339672dccc144c45f7fbc2137e7ede397fb4fc6

Aliases

arxiv: 2605.26975 · arxiv_version: 2605.26975v1 · doi: 10.48550/arxiv.2605.26975 · pith_short_12: BJO5F7JLCDP3 · pith_short_16: BJO5F7JLCDP3C3AX · pith_short_8: BJO5F7JL

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/BJO5F7JLCDP3C3AXDT4HGOLHFX \
  | 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: 0a5dd2fd2b10dfb16c171cf87339672dccc144c45f7fbc2137e7ede397fb4fc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16bb96dba6c2727ca30f5e95b95a4c73f8fbeb94f1b1cbd22773e9bd7ca94930",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2026-05-26T13:00:36Z",
    "title_canon_sha256": "757c234464a8f19e3970a3f637315f1e47f3c267e06028ce981c7063081471bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.26975",
    "kind": "arxiv",
    "version": 1
  }
}