Pith Number

pith:JBII4YC5

pith:2013:JBII4YC55MWUPXFB7XKHLVWOBS

not attested not anchored not stored refs pending

On the uniqueness of solutions for the Fubuki game

Sylvain Golenia

arxiv:1309.2420 v1 · 2013-09-10 · 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{JBII4YC55MWUPXFB7XKHLVWOBS}

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	2026-05-18T03:13:44.723233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48508e605deb2d47dca1fdd475d6ce0caaf62f28e09ebcf6506efaedf8720c54

Aliases

arxiv: 1309.2420 · arxiv_version: 1309.2420v1 · doi: 10.48550/arxiv.1309.2420 · pith_short_12: JBII4YC55MWU · pith_short_16: JBII4YC55MWUPXFB · pith_short_8: JBII4YC5

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/JBII4YC55MWUPXFB7XKHLVWOBS \
  | 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: 48508e605deb2d47dca1fdd475d6ce0caaf62f28e09ebcf6506efaedf8720c54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4e157a8a3cc99f2e4c2127ff4843581d5ae6effffe7681cd78ed92f76761c9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-09-10T09:12:43Z",
    "title_canon_sha256": "bef08f5d1c8d1fd363b03d94d1997b1703a4c2a82e4bcb7cafc2659ffa97d93b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2420",
    "kind": "arxiv",
    "version": 1
  }
}