Pith Number

pith:JWYF5NHI

pith:2012:JWYF5NHIS6LASLPW5CUUPHB7BW

not attested not anchored not stored refs pending

An inductive approach to constructing Universal Cycles on the k-subsets of [n]

Yevgeniy Rudoy

arxiv:1209.4662 v2 · 2012-09-20 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JWYF5NHIS6LASLPW5CUUPHB7BW}

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	2026-05-18T03:27:13.795690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4db05eb4e89796092df6e8a9479c3f0d9a9199e91dc5df525c56081b90644663

Aliases

arxiv: 1209.4662 · arxiv_version: 1209.4662v2 · doi: 10.48550/arxiv.1209.4662 · pith_short_12: JWYF5NHIS6LA · pith_short_16: JWYF5NHIS6LASLPW · pith_short_8: JWYF5NHI

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/JWYF5NHIS6LASLPW5CUUPHB7BW \
  | 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: 4db05eb4e89796092df6e8a9479c3f0d9a9199e91dc5df525c56081b90644663

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa578a7cf18e49d1062c810f2354f8b1bb2b49513f32bea966ba8eced54c46c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-09-20T20:37:55Z",
    "title_canon_sha256": "0c97086d5de8c641aba0c61a42d67edd00779b0aa5262f009af5dcb470bcfbc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4662",
    "kind": "arxiv",
    "version": 2
  }
}