Pith Number

pith:KL5R5IFA

pith:2015:KL5R5IFAFMIEUVFQT23AXFLST2

not attested not anchored not stored refs pending

The Complexity of the Kth Largest Subset Problem and Related Problems

Christoph Haase, Stefan Kiefer

arxiv:1501.06729 v2 · 2015-01-27 · 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{KL5R5IFAFMIEUVFQT23AXFLST2}

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	2026-05-18T01:31:30.007385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52fb1ea0a02b104a54b09eb60b95729eb631e35d439acc07f9c78bc307319a02

Aliases

arxiv: 1501.06729 · arxiv_version: 1501.06729v2 · doi: 10.48550/arxiv.1501.06729 · pith_short_12: KL5R5IFAFMIE · pith_short_16: KL5R5IFAFMIEUVFQ · pith_short_8: KL5R5IFA

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/KL5R5IFAFMIEUVFQT23AXFLST2 \
  | 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: 52fb1ea0a02b104a54b09eb60b95729eb631e35d439acc07f9c78bc307319a02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f64e89cb39ca233c98ea58ac2227debdb5798741af35bcd6c25bda68a301d16",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-01-27T10:33:56Z",
    "title_canon_sha256": "4bd99fadde2eb79539a0ac85a886de99a703ffdd8c6c7cc6f435a83fc0f284e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.06729",
    "kind": "arxiv",
    "version": 2
  }
}