Pith Number

pith:HYGZ2E6S

pith:2017:HYGZ2E6SJSOUR4HXPM7TWY6EDU

not attested not anchored not stored refs pending

Fast Linear Transformations in Python

Christoph Wilfried Wagner, Jan Kirchhof, Sebastian Semper

arxiv:1710.09578 v2 · 2017-10-26 · cs.MS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HYGZ2E6SJSOUR4HXPM7TWY6EDU}

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	2026-07-05T03:35:47.318096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e0d9d13d24c9d48f0f77b3f3b63c41d29440e82ef17f3c279b5b7ff7df83182

Aliases

arxiv: 1710.09578 · arxiv_version: 1710.09578v2 · doi: 10.48550/arxiv.1710.09578 · pith_short_12: HYGZ2E6SJSOU · pith_short_16: HYGZ2E6SJSOUR4HX · pith_short_8: HYGZ2E6S

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/HYGZ2E6SJSOUR4HXPM7TWY6EDU \
  | 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: 3e0d9d13d24c9d48f0f77b3f3b63c41d29440e82ef17f3c279b5b7ff7df83182

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d42b21fb7cde57f764f768178e3c5c4b2c193d158b7246c5e8e3d69cc6c035fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2017-10-26T08:16:04Z",
    "title_canon_sha256": "59688811babc22dc7b6bcf0cddd2170cb766ed82f96f273f013c7e824f329ff5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.09578",
    "kind": "arxiv",
    "version": 2
  }
}