Pith Number

pith:6I234XRF

pith:2019:6I234XRF3ZH63ZDRLB4SJDU3VT

not attested not anchored not stored refs pending

Almost Optimal Tensor Sketch

Jakob B. T. Knudsen, Thomas D. Ahle

arxiv:1909.01821 v1 · 2019-09-03 · cs.DS · cs.LG · math.PR · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6I234XRF3ZH63ZDRLB4SJDU3VT}

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.

Cited by

1 paper in Pith

Understanding the Kronecker Matrix-Vector Complexity of Linear Algebra

Receipt and verification

First computed	2026-07-05T00:02:20.787652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f235be5e25de4fede4715879248e9bacfd06976c1ec6acfdd069c80adc88e1fc

Aliases

arxiv: 1909.01821 · arxiv_version: 1909.01821v1 · doi: 10.48550/arxiv.1909.01821 · pith_short_12: 6I234XRF3ZH6 · pith_short_16: 6I234XRF3ZH63ZDR · pith_short_8: 6I234XRF

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/6I234XRF3ZH63ZDRLB4SJDU3VT \
  | 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: f235be5e25de4fede4715879248e9bacfd06976c1ec6acfdd069c80adc88e1fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99eed06a5637cae78751fa1c4838fb5f489ab75d9b8595e19383e1761152bc36",
    "cross_cats_sorted": [
      "cs.LG",
      "math.PR",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-09-03T08:56:59Z",
    "title_canon_sha256": "f0030ed4abfc5525f186d51c15bc3ed00c587f6620a12191eb148f8ae9218b6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.01821",
    "kind": "arxiv",
    "version": 1
  }
}