Pith Number

pith:OXSUTNYF

pith:2015:OXSUTNYF5YGAP6V6BPMKPHUTJL

not attested not anchored not stored refs pending

A shortcut to (sun)flowers: Kernels in logarithmic space or linear time

Stefan Fafianie, Stefan Kratsch

arxiv:1504.08235 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{OXSUTNYF5YGAP6V6BPMKPHUTJL}

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	2026-05-18T02:17:22.946086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75e549b705ee0c07fabe0bd8a79e934aff1db30e9da83bf56571215597abd788

Aliases

arxiv: 1504.08235 · arxiv_version: 1504.08235v1 · doi: 10.48550/arxiv.1504.08235 · pith_short_12: OXSUTNYF5YGA · pith_short_16: OXSUTNYF5YGAP6V6 · pith_short_8: OXSUTNYF

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/OXSUTNYF5YGAP6V6BPMKPHUTJL \
  | 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: 75e549b705ee0c07fabe0bd8a79e934aff1db30e9da83bf56571215597abd788

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4aafcdf9d8a6bf7219a24f9f3ce7c489712d3c735e6ae348c71fa07fc6ae1bb6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-04-30T14:05:04Z",
    "title_canon_sha256": "0debbf04fa4b6764e237734c538adf237ac8b40602e3a7028c21a8f9b80b4f68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.08235",
    "kind": "arxiv",
    "version": 1
  }
}