Pith Number

pith:IOJXQFHD

pith:2025:IOJXQFHDFIC2XHTP6LSCL2R6LS

not attested not anchored not stored refs pending

A Practical Linear Time Algorithm for Optimal Tree Decomposition of Halin Graphs

Carlos Segura, J.A. Alejandro-Soto, Joel Antonio Trejo-Sanchez

arxiv:2506.02346 v1 · 2025-06-03 · 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{IOJXQFHDFIC2XHTP6LSCL2R6LS}

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	2026-07-05T11:14:36.770866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43937814e32a05ab9e6ff2e425ea3e5caf7e3bda7c5440c2c34de2ceecb0a530

Aliases

arxiv: 2506.02346 · arxiv_version: 2506.02346v1 · doi: 10.48550/arxiv.2506.02346 · pith_short_12: IOJXQFHDFIC2 · pith_short_16: IOJXQFHDFIC2XHTP · pith_short_8: IOJXQFHD

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/IOJXQFHDFIC2XHTP6LSCL2R6LS \
  | 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: 43937814e32a05ab9e6ff2e425ea3e5caf7e3bda7c5440c2c34de2ceecb0a530

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd4b7550035d054299631042ec509be032da64d9928b1cbe92ba10397676edf4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2025-06-03T00:52:06Z",
    "title_canon_sha256": "7c1364afa795185d5987e256fb8cb9cef1e5683e735aa4be425305a3f7ce0ab6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.02346",
    "kind": "arxiv",
    "version": 1
  }
}