Pith Number

pith:ZYKNSL5Q

pith:2015:ZYKNSL5QRRL6SDQMQXEKFKI5DH

not attested not anchored not stored refs pending

The Constant Inapproximability of the Parameterized Dominating Set Problem

Bingkai Lin, Yijia Chen

arxiv:1511.00075 v2 · 2015-10-31 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZYKNSL5QRRL6SDQMQXEKFKI5DH}

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	2026-05-18T01:26:57.094435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce14d92fb08c57e90e0c85c8a2a91d19f3111805b534cce3fa4a080e99af5552

Aliases

arxiv: 1511.00075 · arxiv_version: 1511.00075v2 · doi: 10.48550/arxiv.1511.00075 · pith_short_12: ZYKNSL5QRRL6 · pith_short_16: ZYKNSL5QRRL6SDQM · pith_short_8: ZYKNSL5Q

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/ZYKNSL5QRRL6SDQMQXEKFKI5DH \
  | 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: ce14d92fb08c57e90e0c85c8a2a91d19f3111805b534cce3fa4a080e99af5552

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "993dd7128be98c9d2a2adc1b503f33b7c347cf176b4480b2aefbf17ca358b4fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-10-31T05:06:17Z",
    "title_canon_sha256": "b5eafe44349cb890098412b99a93539ab55c2ab1b43163b02069ec5cbda72a93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.00075",
    "kind": "arxiv",
    "version": 2
  }
}