Pith Number

pith:I45OKGER

pith:2025:I45OKGERNOLBHSCRCZFNPVLG2F

not attested not anchored not stored refs pending

Approximation Algorithms for Connected Maximum Coverage, Minimum Connected Set Cover, and Node-Weighted Group Steiner Tree

Esmaeil Delfaraz, Gianlorenzo D'Angelo

arxiv:2504.07725 v1 · 2025-04-10 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I45OKGERNOLBHSCRCZFNPVLG2F}

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	2026-07-05T10:47:13.861934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

473ae518916b9613c851164ad7d566d1635c0f19906380d753412b261425de53

Aliases

arxiv: 2504.07725 · arxiv_version: 2504.07725v1 · doi: 10.48550/arxiv.2504.07725 · pith_short_12: I45OKGERNOLB · pith_short_16: I45OKGERNOLBHSCR · pith_short_8: I45OKGER

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/I45OKGERNOLBHSCRCZFNPVLG2F \
  | 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: 473ae518916b9613c851164ad7d566d1635c0f19906380d753412b261425de53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71b4fcd963c69788b747a9863a007ffce6b1f91fb0687fc65dd1f065eacdb3fe",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2025-04-10T13:18:22Z",
    "title_canon_sha256": "deeff99a56ae3da3cbefa971d1af33f2057678ad261742bb9f4ffb97b390da16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.07725",
    "kind": "arxiv",
    "version": 1
  }
}