Pith Number

pith:DGEYIJC5

pith:2012:DGEYIJC5Z52KQMGLOUZMWGYEWD

not attested not anchored not stored refs pending

A new method to construct families of complex Hadamard matrices in even dimensions

D. Goyeneche

arxiv:1210.7673 v2 · 2012-10-29 · quant-ph · 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{DGEYIJC5Z52KQMGLOUZMWGYEWD}

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	2026-05-18T03:27:22.907399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

198984245dcf74a830cb7532cb1b04b0c39465b5d19e88d9541526a267681b59

Aliases

arxiv: 1210.7673 · arxiv_version: 1210.7673v2 · doi: 10.48550/arxiv.1210.7673 · pith_short_12: DGEYIJC5Z52K · pith_short_16: DGEYIJC5Z52KQMGL · pith_short_8: DGEYIJC5

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/DGEYIJC5Z52KQMGLOUZMWGYEWD \
  | 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: 198984245dcf74a830cb7532cb1b04b0c39465b5d19e88d9541526a267681b59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "403d2e9bc5416fcbf1c6a6335be9f14af443fc019430196aca513ab2bbdecb05",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-10-29T14:22:26Z",
    "title_canon_sha256": "401a0b745ed3e533da99f8d4735b529166bfadfa21e4efc80da05d8461a97505"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7673",
    "kind": "arxiv",
    "version": 2
  }
}