Pith Number

pith:HE6PMQKW

pith:2014:HE6PMQKWAIIF4P3FULU4ZIOJRC

not attested not anchored not stored refs pending

Approximation Algorithms for Steiner Tree Problems Based on Universal Solution Frameworks

Krzysztof Ciebiera, Piotr Godlewski, Piotr Sankowski, Piotr Wygocki

arxiv:1410.7534 v1 · 2014-10-28 · cs.DS · cs.SE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HE6PMQKWAIIF4P3FULU4ZIOJRC}

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	2026-05-18T02:39:10.103202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

393cf6415602105e3f65a2e9cca1c9889333549131decea3fd2174b07d033db8

Aliases

arxiv: 1410.7534 · arxiv_version: 1410.7534v1 · doi: 10.48550/arxiv.1410.7534 · pith_short_12: HE6PMQKWAIIF · pith_short_16: HE6PMQKWAIIF4P3F · pith_short_8: HE6PMQKW

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/HE6PMQKWAIIF4P3FULU4ZIOJRC \
  | 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: 393cf6415602105e3f65a2e9cca1c9889333549131decea3fd2174b07d033db8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7974ea910f302e6465f75d047d5a72c7348480247147f60df1a5659f6e5fdcd9",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-10-28T07:11:47Z",
    "title_canon_sha256": "4d5ad69bccc6ac18034a8bcb39029fd5c42c07be8eb52babf4e0f76252dc6c21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.7534",
    "kind": "arxiv",
    "version": 1
  }
}