Pith Number

pith:UCUKBWAN

pith:2008:UCUKBWANG5QOK35CINV4WBIB37

not attested not anchored not stored refs pending

Efficient Multiplication of Dense Matrices over GF(2)

Gregory Bard, Martin Albrecht, William Hart

arxiv:0811.1714 v1 · 2008-11-11 · 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{UCUKBWANG5QOK35CINV4WBIB37}

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	2026-05-18T03:59:26.024293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0a8a0d80d3760e56fa2436bcb0501dfe6957e847b68753f39c0abcf29c2a9fe

Aliases

arxiv: 0811.1714 · arxiv_version: 0811.1714v1 · doi: 10.48550/arxiv.0811.1714 · pith_short_12: UCUKBWANG5QO · pith_short_16: UCUKBWANG5QOK35C · pith_short_8: UCUKBWAN

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/UCUKBWANG5QOK35CINV4WBIB37 \
  | 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: a0a8a0d80d3760e56fa2436bcb0501dfe6957e847b68753f39c0abcf29c2a9fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14a9a2126526d7d174451303f77ed3443e1baf32a53a2f91d39b44e27b7322fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2008-11-11T14:23:49Z",
    "title_canon_sha256": "d51231a80fd5ccc4841c91ad993932b79ff82165c8cde159e195e47e0f4b2a5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.1714",
    "kind": "arxiv",
    "version": 1
  }
}