Pith Number

pith:3W7T7CCJ

pith:2018:3W7T7CCJF4FVHA2HCOMITT5N6N

not attested not anchored not stored refs pending

Nearly ETH-Tight Algorithms for Planar Steiner Tree with Terminals on Few Faces

Erik Jan van Leeuwen, Jesper Nederlof, S\'andor Kisfaludi-Bak

arxiv:1811.06871 v1 · 2018-11-16 · 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{3W7T7CCJF4FVHA2HCOMITT5N6N}

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	2026-05-18T00:00:33.625185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddbf3f88492f0b538347139889cfadf37d0d67dfa4293b6123a5670814a32d2a

Aliases

arxiv: 1811.06871 · arxiv_version: 1811.06871v1 · doi: 10.48550/arxiv.1811.06871 · pith_short_12: 3W7T7CCJF4FV · pith_short_16: 3W7T7CCJF4FVHA2H · pith_short_8: 3W7T7CCJ

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/3W7T7CCJF4FVHA2HCOMITT5N6N \
  | 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: ddbf3f88492f0b538347139889cfadf37d0d67dfa4293b6123a5670814a32d2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29ea89c996d5653cd0fea2659c118009b4c1c5a92780647259529cbc7f3e0b06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-11-16T15:47:38Z",
    "title_canon_sha256": "a5980691c6d946a9a80b1a9bc29aa1a876360e69d196a03045b91707c366e98a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.06871",
    "kind": "arxiv",
    "version": 1
  }
}