Pith Number

pith:K4EPCAH7

pith:2021:K4EPCAH7RWKU6EPGVRUZ2VNCCL

not attested not anchored not stored refs pending

Characterization of Decomposition of Matrix Multiplication Tensors

Petr Tichavsky

arxiv:2104.05323 v1 · 2021-04-12 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K4EPCAH7RWKU6EPGVRUZ2VNCCL}

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	2026-07-05T02:31:11.178230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5708f100ff8d954f11e6ac699d55a212d4b4fb00761e0bd932228de1a2bce7e6

Aliases

arxiv: 2104.05323 · arxiv_version: 2104.05323v1 · doi: 10.48550/arxiv.2104.05323 · pith_short_12: K4EPCAH7RWKU · pith_short_16: K4EPCAH7RWKU6EPG · pith_short_8: K4EPCAH7

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/K4EPCAH7RWKU6EPGVRUZ2VNCCL \
  | 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: 5708f100ff8d954f11e6ac699d55a212d4b4fb00761e0bd932228de1a2bce7e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "915a2995235fc1d2111e12755944b30583dc805ec7cbe530f8368cf5a95e74eb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2021-04-12T10:06:17Z",
    "title_canon_sha256": "bed5904055955c6d103b3e580b315670cd969630c6bf6fc66b83b5cbaa5ac7e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05323",
    "kind": "arxiv",
    "version": 1
  }
}