Pith Number

pith:ES44FLDL

pith:2026:ES44FLDL3CEGA7ILTHQX6OP2RW

not attested not anchored not stored refs pending

Exact Algorithms for Edge Deletion to Cactus Graphs and Weighted Variants

Wenhao Song

arxiv:2606.17578 v1 · 2026-06-16 · 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{ES44FLDL3CEGA7ILTHQX6OP2RW}

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	2026-06-19T16:10:16.456860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24b9c2ac6bd888607d0b99e17f39fa8db181a8ac1acbabe1510b7ee5fbd1ede6

Aliases

arxiv: 2606.17578 · arxiv_version: 2606.17578v1 · doi: 10.48550/arxiv.2606.17578 · pith_short_12: ES44FLDL3CEG · pith_short_16: ES44FLDL3CEGA7IL · pith_short_8: ES44FLDL

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/ES44FLDL3CEGA7ILTHQX6OP2RW \
  | 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: 24b9c2ac6bd888607d0b99e17f39fa8db181a8ac1acbabe1510b7ee5fbd1ede6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ff2add9d8dd20f602d8a4ffc21c7155fb32dd974409ab2e5b13af080761b93f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2026-06-16T06:27:51Z",
    "title_canon_sha256": "8a78549db95032d73237aea844b2de6ffbd97ee268857f1054257e8c6a0bf9a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.17578",
    "kind": "arxiv",
    "version": 1
  }
}