Pith Number

pith:DYA2BPHK

pith:2014:DYA2BPHK3O3SDSME6CECNGLSTB

not attested not anchored not stored refs pending

Hadamard Structures with Associated Automorphisms

Ivica Martinjak

arxiv:1405.4157 v1 · 2014-05-16 · 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{DYA2BPHK3O3SDSME6CECNGLSTB}

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	2026-05-18T02:51:43.004153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e01a0bceadbb721c984f088269972985b1bcd4cf1866de1e86e722d9490c991

Aliases

arxiv: 1405.4157 · arxiv_version: 1405.4157v1 · doi: 10.48550/arxiv.1405.4157 · pith_short_12: DYA2BPHK3O3S · pith_short_16: DYA2BPHK3O3SDSME · pith_short_8: DYA2BPHK

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/DYA2BPHK3O3SDSME6CECNGLSTB \
  | 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: 1e01a0bceadbb721c984f088269972985b1bcd4cf1866de1e86e722d9490c991

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a28a996742b4992789c2287eb5305dda403bfac5bf4a4297cdc4e8d2b355408",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-05-16T13:04:02Z",
    "title_canon_sha256": "fc2e7d543a69eabb9e37618af8cadf31ed08f73d9ae2e2209da0c3c0e6463bee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4157",
    "kind": "arxiv",
    "version": 1
  }
}