Pith Number

pith:U4G7FWI6

pith:2014:U4G7FWI63QUAMAPZTLPDBJWZTX

not attested not anchored not stored refs pending

Derived and Residual Subspace Designs

Michael Kiermaier, Reinhard Laue

arxiv:1405.5432 v1 · 2014-05-21 · 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{U4G7FWI63QUAMAPZTLPDBJWZTX}

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	2026-05-18T01:30:08.420385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a70df2d91edc280601f99ade30a6d99dca2014940c10eedb635588ae41dffbb6

Aliases

arxiv: 1405.5432 · arxiv_version: 1405.5432v1 · doi: 10.48550/arxiv.1405.5432 · pith_short_12: U4G7FWI63QUA · pith_short_16: U4G7FWI63QUAMAPZ · pith_short_8: U4G7FWI6

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/U4G7FWI63QUAMAPZTLPDBJWZTX \
  | 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: a70df2d91edc280601f99ade30a6d99dca2014940c10eedb635588ae41dffbb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7de39db9d3b92457a468da441672636fb93a14865a87033f635ae4670a74fda",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-05-21T14:20:03Z",
    "title_canon_sha256": "fa81d90e17520c75a499f586fd27d7acd2bbf959dbc108b8749870da94481d69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.5432",
    "kind": "arxiv",
    "version": 1
  }
}