Pith Number

pith:GJQN47MV

pith:2019:GJQN47MVP4HG4B5TZCTIBDLTSC

not attested not anchored not stored refs pending

Learning Quasi-Kronecker Product Graphical Models

Mattia Zorzi

arxiv:1901.10894 v1 · 2019-01-30 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GJQN47MVP4HG4B5TZCTIBDLTSC}

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	2026-05-17T23:55:05.795541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3260de7d957f0e6e07b3c8a6808d7390abd0ae40489336e5d6bbba2a4cd2f8b7

Aliases

arxiv: 1901.10894 · arxiv_version: 1901.10894v1 · doi: 10.48550/arxiv.1901.10894 · pith_short_12: GJQN47MVP4HG · pith_short_16: GJQN47MVP4HG4B5T · pith_short_8: GJQN47MV

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/GJQN47MVP4HG4B5TZCTIBDLTSC \
  | 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: 3260de7d957f0e6e07b3c8a6808d7390abd0ae40489336e5d6bbba2a4cd2f8b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d808d41793ee7f063c270c11d7f390c6b43e44688b9ec5ee4d4fa4cb4339bf6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-01-30T15:18:32Z",
    "title_canon_sha256": "90a265f3f8386240606ba8f190f50b21e278a9c7bdf1cee991f73cb7abe2dea5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10894",
    "kind": "arxiv",
    "version": 1
  }
}