Pith Number

pith:FOGEOYMW

pith:2016:FOGEOYMWR5WCABXCWXF253BZW4

not attested not anchored not stored refs pending

A recursive construction for simple $t$-designs using resolution

Tran van Trung

arxiv:1612.01978 v1 · 2016-12-06 · 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{FOGEOYMWR5WCABXCWXF253BZW4}

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	2026-05-18T00:55:40.075185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b8c4761968f6c2006e2b5cbaeec39b72a2ab9a3bd91f7c726a4e344a8b94650

Aliases

arxiv: 1612.01978 · arxiv_version: 1612.01978v1 · doi: 10.48550/arxiv.1612.01978 · pith_short_12: FOGEOYMWR5WC · pith_short_16: FOGEOYMWR5WCABXC · pith_short_8: FOGEOYMW

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/FOGEOYMWR5WCABXCWXF253BZW4 \
  | 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: 2b8c4761968f6c2006e2b5cbaeec39b72a2ab9a3bd91f7c726a4e344a8b94650

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e91ad34afdb5ee6f1d69998d6406a1910f92852ab7958afd727d1a23689c1b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-12-06T20:16:39Z",
    "title_canon_sha256": "350866c629c2a4f5b198217592a84923ca4f01ecd41e649bc7dd50bdfacd3388"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.01978",
    "kind": "arxiv",
    "version": 1
  }
}