Pith Number

pith:PXGQPCO2

pith:2026:PXGQPCO2C7YPN7OCSY7FZ5Y357

not attested not anchored not stored refs pending

An Approximation Algorithm for Graph Label Selection

Josia John, Maximilian Probst Gutenberg, Simon Meierhans

arxiv:2605.18623 v1 · 2026-05-18 · cs.DS · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PXGQPCO2C7YPN7OCSY7FZ5Y357}

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	2026-05-20T00:06:11.320967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dcd0789da17f0f6fdc2963e5cf71beff48812013b83c0e096bc7083b353523c

Aliases

arxiv: 2605.18623 · arxiv_version: 2605.18623v1 · doi: 10.48550/arxiv.2605.18623 · pith_short_12: PXGQPCO2C7YP · pith_short_16: PXGQPCO2C7YPN7OC · pith_short_8: PXGQPCO2

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/PXGQPCO2C7YPN7OCSY7FZ5Y357 \
  | 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: 7dcd0789da17f0f6fdc2963e5cf71beff48812013b83c0e096bc7083b353523c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9310e96563495a21ed9f71325de3bbb44635d85a5c4839d05d475b674dd00189",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2026-05-18T16:32:40Z",
    "title_canon_sha256": "9e0903e5a596e7ae876dc42afbc29a29109ab81b206ed785ba971ebc6b0388e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18623",
    "kind": "arxiv",
    "version": 1
  }
}