Pith Number

pith:7OTS4C6V

pith:2019:7OTS4C6VMRM7SKIE6S5Y2UIDDE

not attested not anchored not stored refs pending

Unconstrained representation of orthogonal matrices with application to common principle components

Antonio Punzo, Luca Bagnato

arxiv:1906.00587 v1 · 2019-06-03 · stat.ME · stat.AP · stat.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{7OTS4C6VMRM7SKIE6S5Y2UIDDE}

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	2026-05-17T23:44:24.441894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fba72e0bd56459f92904f4bb8d51031907e257e9a2768b73df29bf146ec7366a

Aliases

arxiv: 1906.00587 · arxiv_version: 1906.00587v1 · doi: 10.48550/arxiv.1906.00587 · pith_short_12: 7OTS4C6VMRM7 · pith_short_16: 7OTS4C6VMRM7SKIE · pith_short_8: 7OTS4C6V

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/7OTS4C6VMRM7SKIE6S5Y2UIDDE \
  | 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: fba72e0bd56459f92904f4bb8d51031907e257e9a2768b73df29bf146ec7366a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1bc2456017042bb54a90ac49da192c3ef6ef8633b3a68a62579d9122af660d6",
    "cross_cats_sorted": [
      "stat.AP",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2019-06-03T05:58:54Z",
    "title_canon_sha256": "e317914650fda695b055f9e950b794da75ed1a98016b70f8af044d7059c0dea2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.00587",
    "kind": "arxiv",
    "version": 1
  }
}