Pith Number

pith:ZITTSPSO

pith:2017:ZITTSPSOZDJZPI67KSHIUFTEFV

not attested not anchored not stored refs pending

Isolated partial Hadamard matrices, and related topics

Duygu Ozteke, Lorenzo Pittau, Teodor Banica

arxiv:1706.00986 v2 · 2017-06-03 · 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{ZITTSPSOZDJZPI67KSHIUFTEFV}

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	2026-05-18T00:08:11.321195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca27393e4ec8d397a3df548e8a16642d4e2af4c969c1a95098c938441a2cc308

Aliases

arxiv: 1706.00986 · arxiv_version: 1706.00986v2 · doi: 10.48550/arxiv.1706.00986 · pith_short_12: ZITTSPSOZDJZ · pith_short_16: ZITTSPSOZDJZPI67 · pith_short_8: ZITTSPSO

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/ZITTSPSOZDJZPI67KSHIUFTEFV \
  | 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: ca27393e4ec8d397a3df548e8a16642d4e2af4c969c1a95098c938441a2cc308

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15129efe04624a1af1b057c92e808abd4bca8dfc2ae49c5e8ff358f482d8be36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-06-03T18:07:53Z",
    "title_canon_sha256": "a50a21e6fd433201e9a63551bbbf535748b35c7adb1d393a38dc6ef6cac7cf4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.00986",
    "kind": "arxiv",
    "version": 2
  }
}