Pith Number

pith:NJQVBIFU

pith:2014:NJQVBIFU3W2DOTX3LLBHX7IZTK

not attested not anchored not stored refs pending

Knowledge-Based Automatic Generation of Linear Algebra Algorithms and Code

Diego Fabregat-Traver

arxiv:1404.3406 v1 · 2014-04-13 · 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{NJQVBIFU3W2DOTX3LLBHX7IZTK}

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	2026-05-18T02:54:15.258806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a6150a0b4ddb4374efb5ac27bfd199a90f4e2b8570104473afca00944bb324f

Aliases

arxiv: 1404.3406 · arxiv_version: 1404.3406v1 · doi: 10.48550/arxiv.1404.3406 · pith_short_12: NJQVBIFU3W2D · pith_short_16: NJQVBIFU3W2DOTX3 · pith_short_8: NJQVBIFU

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/NJQVBIFU3W2DOTX3LLBHX7IZTK \
  | 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: 6a6150a0b4ddb4374efb5ac27bfd199a90f4e2b8570104473afca00944bb324f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e0dd6be116fe4bffb5a14aeaab5339a626220f77dd0d5a8c8592d55bda7756e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2014-04-13T18:13:32Z",
    "title_canon_sha256": "7267dbd6c6c62c70992d77aef45922520f1d1f98a72ca23f1d17cfa140d88d28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3406",
    "kind": "arxiv",
    "version": 1
  }
}