Pith Number

pith:CI5TO2OV

pith:2010:CI5TO2OVBU7ZX54G7FYY2NNQTV

not attested not anchored not stored refs pending

Small orders of Hadamard matrices and base sequences

Dragomir Z. Djokovic

arxiv:1008.2043 v1 · 2010-08-12 · 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{CI5TO2OVBU7ZX54G7FYY2NNQTV}

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	2026-05-18T03:36:05.160069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

123b3769d50d3f9bf786f9718d35b09d7ce5e551873fbefdac664378e982052b

Aliases

arxiv: 1008.2043 · arxiv_version: 1008.2043v1 · doi: 10.48550/arxiv.1008.2043 · pith_short_12: CI5TO2OVBU7Z · pith_short_16: CI5TO2OVBU7ZX54G · pith_short_8: CI5TO2OV

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/CI5TO2OVBU7ZX54G7FYY2NNQTV \
  | 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: 123b3769d50d3f9bf786f9718d35b09d7ce5e551873fbefdac664378e982052b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d29cbca4dd3752e1a896516e85f07e8fd2e1863e16bc62fa20fd6f99955cc1d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-08-12T04:42:27Z",
    "title_canon_sha256": "e295b3495d551dba7c957fa76f520636dc69952327b72d3e346ba9e2009d0fb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2043",
    "kind": "arxiv",
    "version": 1
  }
}