Pith Number

pith:KW4B3IJU

pith:2010:KW4B3IJU724HAEEXF57TQQF4NR

not attested not anchored not stored refs pending

Fast Multiplication of Matrices with Decay

Matt Challacombe, Nicolas Bock

arxiv:1011.3534 v1 · 2010-11-15 · cs.DS · cond-mat.mtrl-sci · cs.MS · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KW4B3IJU724HAEEXF57TQQF4NR}

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	2026-05-18T04:35:48.618734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55b81da134feb87010972f7f3840bc6c6b633b8c7561a961718145621ccf8115

Aliases

arxiv: 1011.3534 · arxiv_version: 1011.3534v1 · doi: 10.48550/arxiv.1011.3534 · pith_short_12: KW4B3IJU724H · pith_short_16: KW4B3IJU724HAEEX · pith_short_8: KW4B3IJU

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/KW4B3IJU724HAEEXF57TQQF4NR \
  | 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: 55b81da134feb87010972f7f3840bc6c6b633b8c7561a961718145621ccf8115

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d86f04b781cffd4c40916cd60f33fed2f3e006d5b268fd40daeec099c19bde79",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "cs.MS",
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-11-15T21:59:11Z",
    "title_canon_sha256": "355d3fc31dc8475145510717a098717195a82cb43597c38eb09b494ee4fa268d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.3534",
    "kind": "arxiv",
    "version": 1
  }
}