Pith Number

pith:DU6OHJXI

pith:2015:DU6OHJXITQISWNUURYSXGUPUIQ

not attested not anchored not stored refs pending

A Generalization of Combinatorial Designs Related to Almost Difference Sets

Baokun Ding, Jerod Michel

arxiv:1505.04611 v1 · 2015-05-18 · 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{DU6OHJXITQISWNUURYSXGUPUIQ}

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	2026-05-18T02:07:25.014894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d3ce3a6e89c112b36948e257351f4440f2e66325941b63d34fd064b01c73e2e

Aliases

arxiv: 1505.04611 · arxiv_version: 1505.04611v1 · doi: 10.48550/arxiv.1505.04611 · pith_short_12: DU6OHJXITQIS · pith_short_16: DU6OHJXITQISWNUU · pith_short_8: DU6OHJXI

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/DU6OHJXITQISWNUURYSXGUPUIQ \
  | 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: 1d3ce3a6e89c112b36948e257351f4440f2e66325941b63d34fd064b01c73e2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ec4644ff20db68e2b3fcd3c4da698688644ee46c6e4ecb5ca46ca8ab210147d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-05-18T12:39:40Z",
    "title_canon_sha256": "854a3bb07791c8be81a408369a166b71b6c3919b6ea83b04d5bd373f8fa7a583"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04611",
    "kind": "arxiv",
    "version": 1
  }
}