Pith Number

pith:4DW235AR

pith:2019:4DW235ARKGVCF5S7OKTO2FRHGM

not attested not anchored not stored refs pending

On Approximating Degree-Bounded Network Design Problems

Bundit Laekhanukit, Daniel Vaz, Guy Kortsarz, Jiayi Xian, Shi Li, Xiangyu Guo

arxiv:1907.11404 v2 · 2019-07-26 · 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{4DW235ARKGVCF5S7OKTO2FRHGM}

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	2026-07-05T00:58:23.956792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0edadf41151aa22f65f72a6ed16273311152eb17b49a67aff200f24f35c6ff3

Aliases

arxiv: 1907.11404 · arxiv_version: 1907.11404v2 · doi: 10.48550/arxiv.1907.11404 · pith_short_12: 4DW235ARKGVC · pith_short_16: 4DW235ARKGVCF5S7 · pith_short_8: 4DW235AR

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/4DW235ARKGVCF5S7OKTO2FRHGM \
  | 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: e0edadf41151aa22f65f72a6ed16273311152eb17b49a67aff200f24f35c6ff3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "388febbecd3c89d925fd3d3a1b30c608bb2d8a29fd9587413ae1af7d737474b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-07-26T07:11:36Z",
    "title_canon_sha256": "316b12a9a3726b9453ea7202dd459c65c84ba699155ad9bd8ff889c19f5b7bd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.11404",
    "kind": "arxiv",
    "version": 2
  }
}