Pith Number

pith:HWFLXFYA

pith:2015:HWFLXFYAIGYZPQHNOUU6SRSRGG

not attested not anchored not stored refs pending

Task-Based Algorithm for Matrix Multiplication: A Step Towards Block-Sparse Tensor Computing

Edward F. Valeev, Justus A. Calvin

arxiv:1504.05046 v1 · 2015-04-20 · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HWFLXFYAIGYZPQHNOUU6SRSRGG}

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	2026-05-18T02:18:22.782662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d8abb970041b197c0ed7529e9465131830c4403bc611910560a5c7dc719fb9b

Aliases

arxiv: 1504.05046 · arxiv_version: 1504.05046v1 · doi: 10.48550/arxiv.1504.05046 · pith_short_12: HWFLXFYAIGYZ · pith_short_16: HWFLXFYAIGYZPQHN · pith_short_8: HWFLXFYA

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/HWFLXFYAIGYZPQHNOUU6SRSRGG \
  | 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: 3d8abb970041b197c0ed7529e9465131830c4403bc611910560a5c7dc719fb9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9ea0c20a3b82a13ce24c1352e63561725bcaeb9ceb9f047492d9b0d002d78e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2015-04-20T13:18:10Z",
    "title_canon_sha256": "695670bcfa857a692e75bb4b6fadb5e5ea6a36b12c7e1d6d8cb9b9c4587b7afb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05046",
    "kind": "arxiv",
    "version": 1
  }
}