Pith Number

pith:47GKW6WN

pith:2012:47GKW6WN42HJRTOQSBHKRWQSFD

not attested not anchored not stored refs pending

Parameterized Complexity of Directed Steiner Tree on Sparse Graphs

Daniel Lokshtanov, Mark Jones, M. S. Ramanujan, Ond\v{r}ej Such\'y, Saket Saurabh

arxiv:1210.0260 v1 · 2012-10-01 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{47GKW6WN42HJRTOQSBHKRWQSFD}

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	2026-05-18T03:44:22.897823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7ccab7acde68e98cdd0904ea8da1228e7669f64fbfcef879a1e13f7a4b2765d

Aliases

arxiv: 1210.0260 · arxiv_version: 1210.0260v1 · doi: 10.48550/arxiv.1210.0260 · pith_short_12: 47GKW6WN42HJ · pith_short_16: 47GKW6WN42HJRTOQ · pith_short_8: 47GKW6WN

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/47GKW6WN42HJRTOQSBHKRWQSFD \
  | 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: e7ccab7acde68e98cdd0904ea8da1228e7669f64fbfcef879a1e13f7a4b2765d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aef84dc7f0ea400db5ed95cb7ea88316f282b2c7c164e086f20189d7ee9c3540",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-10-01T00:04:55Z",
    "title_canon_sha256": "9630b342b63e917a0487635ca0ab393f68fa8a703a997a1a1b3af44168ae5e40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0260",
    "kind": "arxiv",
    "version": 1
  }
}