Pith Number

pith:HLUXJ447

pith:2018:HLUXJ447SYGQDI2JNN4G567BQL

not attested not anchored not stored refs pending

Fast Feasible and Unfeasible Matrix Multiplication

Victor Y. Pan

arxiv:1804.04102 v1 · 2018-04-11 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HLUXJ447SYGQDI2JNN4G567BQL}

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	2026-05-18T00:18:42.068808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ae974f39f960d01a3496b786efbe182e6210f26a468f6d4d1498bf3b7f7ae9f

Aliases

arxiv: 1804.04102 · arxiv_version: 1804.04102v1 · doi: 10.48550/arxiv.1804.04102 · pith_short_12: HLUXJ447SYGQ · pith_short_16: HLUXJ447SYGQDI2J · pith_short_8: HLUXJ447

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/HLUXJ447SYGQDI2JNN4G567BQL \
  | 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: 3ae974f39f960d01a3496b786efbe182e6210f26a468f6d4d1498bf3b7f7ae9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d872c5a44d1b57920372b9070cafb4ef5151bf11c2b3f41dd6c57297eabc3d0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-04-11T17:18:16Z",
    "title_canon_sha256": "aae804e54d288be0675cdd86702dd37926e42ba7954984796b3971e07fc04068"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04102",
    "kind": "arxiv",
    "version": 1
  }
}