Pith Number

pith:D433GF43

pith:2024:D433GF43ILMCZHU4J4SESAPBTK

not attested not anchored not stored refs pending

Optimized 2-Approximation of Treewidth

Mahdi Belbasi, Martin F\"urer, Medha Kumar

arxiv:2411.16918 v3 · 2024-11-25 · 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{D433GF43ILMCZHU4J4SESAPBTK}

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	2026-07-05T11:32:20.959804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f37b3179b42d82c9e9c4f244901e19aaf61ecac441abdc82691e57f6845c305

Aliases

arxiv: 2411.16918 · arxiv_version: 2411.16918v3 · doi: 10.48550/arxiv.2411.16918 · pith_short_12: D433GF43ILMC · pith_short_16: D433GF43ILMCZHU4 · pith_short_8: D433GF43

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/D433GF43ILMCZHU4J4SESAPBTK \
  | 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: 1f37b3179b42d82c9e9c4f244901e19aaf61ecac441abdc82691e57f6845c305

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a87341a40f6f4e9aef159589bc77759007b3a3433fd73d9b7108ff5d0fa8745",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2024-11-25T20:44:15Z",
    "title_canon_sha256": "80505ef4ed98f3044126ad142189296286d952a746b89380625466e875ce63e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2411.16918",
    "kind": "arxiv",
    "version": 3
  }
}