Pith Number

pith:WU6ANEWY

pith:2026:WU6ANEWYE5VIOGTCO2J3AIVDRG

not attested not anchored not stored refs pending

Deterministic Single Exponential Time Algorithms for Co-Path Packing and Co-Path Set Parameterized by Treewidth

Kangyi Tian, Mingyu Xiao, Yuxi Liu

arxiv:2605.19870 v1 · 2026-05-19 · 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{WU6ANEWYE5VIOGTCO2J3AIVDRG}

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	2026-05-20T01:06:18.396718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b53c0692d8276a871a627693b022a389aff3b8622b4cff7aa1035e7517cc7568

Aliases

arxiv: 2605.19870 · arxiv_version: 2605.19870v1 · doi: 10.48550/arxiv.2605.19870 · pith_short_12: WU6ANEWYE5VI · pith_short_16: WU6ANEWYE5VIOGTC · pith_short_8: WU6ANEWY

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/WU6ANEWYE5VIOGTCO2J3AIVDRG \
  | 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: b53c0692d8276a871a627693b022a389aff3b8622b4cff7aa1035e7517cc7568

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "667faef27554e92c9fe7acc8fbc7f5af1e7e9bf1823918eb51e43cd82c07315d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2026-05-19T14:01:40Z",
    "title_canon_sha256": "68c8379ddca476361e52e96f040bc6b0096a55e71a1308bea8948d3d1a859a31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19870",
    "kind": "arxiv",
    "version": 1
  }
}