Pith Number

pith:P2553T6C

pith:2019:P2553T6CFXBZFY43NZBVSAYKML

not attested not anchored not stored refs pending

On the Efficacy and High-Performance Implementation of Quaternion Matrix Multiplication

David Williams-Young, Xiaosong Li

arxiv:1903.05575 v1 · 2019-03-13 · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P2553T6CFXBZFY43NZBVSAYKML}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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.

Cited by

1 paper in Pith

Representations of 3D Rotations: Mathematical Foundations and Comparative Analysis

Receipt and verification

First computed	2026-05-17T23:51:20.590165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ebbddcfc22dc392e39b6e4359030a62cfa2a475cd01037ca0f701b5bde5fa29

Aliases

arxiv: 1903.05575 · arxiv_version: 1903.05575v1 · doi: 10.48550/arxiv.1903.05575 · pith_short_12: P2553T6CFXBZ · pith_short_16: P2553T6CFXBZFY43 · pith_short_8: P2553T6C

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/P2553T6CFXBZFY43NZBVSAYKML \
  | 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: 7ebbddcfc22dc392e39b6e4359030a62cfa2a475cd01037ca0f701b5bde5fa29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6552054322e604656a0fb371494ab8ea08b82a735886f4ff7b72d17ee4ffa615",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2019-03-13T16:19:27Z",
    "title_canon_sha256": "a98f589c8848fe8bf1219278595d81713aa9004c8960316a15230d1fc9a8fd96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05575",
    "kind": "arxiv",
    "version": 1
  }
}