Pith Number

pith:ZTH3QB5T

pith:2015:ZTH3QB5TKSMZOKIVD323KXB246

not attested not anchored not stored refs pending

Optimal competitiveness for the Rectilinear Steiner Arborescence problem

Erez Kantor, Shay Kutten

arxiv:1504.08265 v1 · 2015-04-30 · 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{ZTH3QB5TKSMZOKIVD323KXB246}

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	2026-05-18T02:17:22.837409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cccfb807b354999729151ef5b55c3ae78875540f83fff84a251873e568871ff3

Aliases

arxiv: 1504.08265 · arxiv_version: 1504.08265v1 · doi: 10.48550/arxiv.1504.08265 · pith_short_12: ZTH3QB5TKSMZ · pith_short_16: ZTH3QB5TKSMZOKIV · pith_short_8: ZTH3QB5T

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/ZTH3QB5TKSMZOKIVD323KXB246 \
  | 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: cccfb807b354999729151ef5b55c3ae78875540f83fff84a251873e568871ff3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b843d83a0234ad886871754db30247dd1df54eb3578b5799975746e78d4b6666",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-04-30T15:18:08Z",
    "title_canon_sha256": "10e236dcc25c1c2d860da741a6dcdcc6cc2b05abb8bfd179ccecaf8180e52c66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.08265",
    "kind": "arxiv",
    "version": 1
  }
}