Pith Number

pith:OJXCDIZW

pith:2018:OJXCDIZWNR5L4OYA7IZPCWPUD4

not attested not anchored not stored refs pending

On subexponential running times for approximating directed Steiner tree and related problems

Bundit Laekhanukit, Guy Kortsarz, Marek Cygan

arxiv:1811.00710 v1 · 2018-11-02 · 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{OJXCDIZWNR5L4OYA7IZPCWPUD4}

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	2026-05-18T00:01:42.424063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

726e21a3366c7abe3b00fa32f159f41f09a92009311f173059f49bf6847c9587

Aliases

arxiv: 1811.00710 · arxiv_version: 1811.00710v1 · doi: 10.48550/arxiv.1811.00710 · pith_short_12: OJXCDIZWNR5L · pith_short_16: OJXCDIZWNR5L4OYA · pith_short_8: OJXCDIZW

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/OJXCDIZWNR5L4OYA7IZPCWPUD4 \
  | 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: 726e21a3366c7abe3b00fa32f159f41f09a92009311f173059f49bf6847c9587

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b1086c5b0132530b96ecf9cc68362c4ce6d5abd82dc7e44fc050e7a5055fe10",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-11-02T02:24:40Z",
    "title_canon_sha256": "3587ba005630a8078d7c392799d39cdf4fefc9b9377886936090ebe433f2c027"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.00710",
    "kind": "arxiv",
    "version": 1
  }
}