Pith Number

pith:3XPUJSID

pith:2014:3XPUJSIDKG34RROIY5VTUI62KI

not attested not anchored not stored refs pending

Additional Constructions to Solve the Generalized Russian Cards Problem using Combinatorial Designs

Colleen M. Swanson, Douglas R. Stinson

arxiv:1401.1526 v2 · 2014-01-07 · cs.CR · 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{3XPUJSIDKG34RROIY5VTUI62KI}

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	2026-05-18T02:45:49.598743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dddf44c90351b7c8c5c8c76b3a23da521bd891721e4f8c7b2a4e3feb25771217

Aliases

arxiv: 1401.1526 · arxiv_version: 1401.1526v2 · doi: 10.48550/arxiv.1401.1526 · pith_short_12: 3XPUJSIDKG34 · pith_short_16: 3XPUJSIDKG34RROI · pith_short_8: 3XPUJSID

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/3XPUJSIDKG34RROIY5VTUI62KI \
  | 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: dddf44c90351b7c8c5c8c76b3a23da521bd891721e4f8c7b2a4e3feb25771217

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad663387f3023c62106d12cb485909f94cb15f1c5d7c5581f6a06081cbefedcf",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2014-01-07T22:18:05Z",
    "title_canon_sha256": "cf851b5618c6b2f536823366faf61bf40a8ec1dc595b631170e5de7f33104c4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1526",
    "kind": "arxiv",
    "version": 2
  }
}