Pith Number

pith:KOV7D7MQ

pith:2017:KOV7D7MQSGRYLQ2BB24QTT2IYY

not attested not anchored not stored refs pending

On the Restricted Isometry of the Columnwise Khatri-Rao Product

Chandra R Murthy, Saurabh Khanna

arxiv:1709.05789 v3 · 2017-09-18 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KOV7D7MQSGRYLQ2BB24QTT2IYY}

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	2026-05-18T00:10:04.008178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53abf1fd9091a385c3410eb909cf48c6327fd4aebd28e638c8643b9687c49f1a

Aliases

arxiv: 1709.05789 · arxiv_version: 1709.05789v3 · doi: 10.48550/arxiv.1709.05789 · pith_short_12: KOV7D7MQSGRY · pith_short_16: KOV7D7MQSGRYLQ2B · pith_short_8: KOV7D7MQ

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/KOV7D7MQSGRYLQ2BB24QTT2IYY \
  | 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: 53abf1fd9091a385c3410eb909cf48c6327fd4aebd28e638c8643b9687c49f1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c62e30eda64d1b18a9990581eacb83528ecfae1ee27384451aaad9ffcea979f1",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-09-18T07:05:12Z",
    "title_canon_sha256": "ee2331dee008970910341941193998d26d0eb1e20a15cc88e6e1ce7971b0be01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05789",
    "kind": "arxiv",
    "version": 3
  }
}