Pith Number

pith:YCKO75TJ

pith:2018:YCKO75TJW7S6CLKXUNTF46NW2L

not attested not anchored not stored refs pending

There exists a partitioned balanced tournament design of side nine

Makoto Araya, Naoya Tokihisa

arxiv:1805.06987 v1 · 2018-05-17 · 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{YCKO75TJW7S6CLKXUNTF46NW2L}

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	2026-05-18T00:15:41.440245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c094eff669b7e5e12d57a3665e79b6d2cea958e7b5ebe5e8c7463eb48938b1ee

Aliases

arxiv: 1805.06987 · arxiv_version: 1805.06987v1 · doi: 10.48550/arxiv.1805.06987 · pith_short_12: YCKO75TJW7S6 · pith_short_16: YCKO75TJW7S6CLKX · pith_short_8: YCKO75TJ

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/YCKO75TJW7S6CLKXUNTF46NW2L \
  | 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: c094eff669b7e5e12d57a3665e79b6d2cea958e7b5ebe5e8c7463eb48938b1ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73a0a538943cf1ccbd6e9b2e2b60eb1e60cf7a7faa4641b1f8730dcc53d1fe5f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-17T23:09:59Z",
    "title_canon_sha256": "5d6892afb1235a4f69c26f58fed25f4cf3b5f41c3c91862adcbd4e2593e4cef5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.06987",
    "kind": "arxiv",
    "version": 1
  }
}